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Merge pull request #6184 from haukepetersen/opt_stm32_timer

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cpu/stm32x: unified timer driver
This commit is contained in:
Hauke Petersen 2016-12-13 10:23:57 +01:00 committed by GitHub
commit 0111946c51
55 changed files with 370 additions and 1852 deletions
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39
boards/f4vi1/include/periph_conf.h
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@ -51,31 +51,30 @@ extern "C" {
/** @} */
/**
* @name Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (2U)
#define TIMER_0_EN 1
#define TIMER_1_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK / 2)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_ISR isr_tim2
#define TIMER_0_IRQ_CHAN TIM2_IRQn
/* Timer 1 configuration */
#define TIMER_1_DEV TIM5
#define TIMER_1_CHANNELS 4
#define TIMER_1_FREQ (CLOCK_CORECLOCK / 2)
#define TIMER_1_MAX_VALUE (0xffffffff)
#define TIMER_1_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM5EN)
#define TIMER_1_ISR isr_tim5
#define TIMER_1_IRQ_CHAN TIM5_IRQn
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

2
boards/fox/include/periph_conf.h
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@ -67,12 +67,14 @@ extern "C" {
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0x0000ffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM3,
.max = 0x0000ffff,
.rcc_mask = RCC_APB1ENR_TIM3EN,
.bus = APB1,
.irqn = TIM3_IRQn

10
boards/iotlab-common/include/periph_conf_common.h
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@ -40,11 +40,13 @@ extern "C" {
#define CLOCK_AHB_DIV RCC_CFGR_HPRE_DIV1 /* AHB clock -> 72MHz */
#define CLOCK_APB2_DIV RCC_CFGR_PPRE2_DIV1 /* APB2 clock -> 72MHz */
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV2 /* APB1 clock -> 36MHz */
/* resulting bus clocks */
#define CLOCK_APB1 (CLOCK_CORECLOCK / 2)
#define CLOCK_APB2 (CLOCK_CORECLOCK)
/* configuration of flash access cycles */
#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY_2
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 2)
/** @} */
/**
@ -66,12 +68,14 @@ extern "C" {
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0x0000ffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM3,
.max = 0x0000ffff,
.rcc_mask = RCC_APB1ENR_TIM3EN,
.bus = APB1,
.irqn = TIM3_IRQn

5
boards/limifrog-v1/include/periph_conf.h
View File

@ -42,6 +42,11 @@ extern "C" {
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV1 /* APB1 clock -> 32MHz */
/* configuration of flash access cycles */
#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 1)
/** @} */
/**

40
boards/msbiot/include/periph_conf.h
View File

@ -48,33 +48,31 @@ extern "C" {
#define CLOCK_APB1 (CLOCK_CORECLOCK / 4)
/** @} */
/**
* @name Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (2U)
#define TIMER_0_EN 1
#define TIMER_1_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (84000000U)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_ISR isr_tim2
#define TIMER_0_IRQ_CHAN TIM2_IRQn
/* Timer 1 configuration */
#define TIMER_1_DEV TIM5
#define TIMER_1_CHANNELS 4
#define TIMER_1_FREQ (84000000U)
#define TIMER_1_MAX_VALUE (0xffffffff)
#define TIMER_1_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM5EN)
#define TIMER_1_ISR isr_tim5
#define TIMER_1_IRQ_CHAN TIM5_IRQn
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

30
boards/nucleo-f030/include/periph_conf.h
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@ -21,6 +21,8 @@
#ifndef PERIPH_CONF_H_
#define PERIPH_CONF_H_
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
@ -34,24 +36,30 @@ extern "C" {
/* the actual PLL values are automatically generated */
#define CLOCK_PLL_MUL (CLOCK_CORECLOCK / CLOCK_HSE)
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 1)
/** @} */
/**
* @brief Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (1U)
#define TIMER_0_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM3,
.max = 0x0000ffff,
.rcc_mask = RCC_APB1ENR_TIM3EN,
.bus = APB1,
.irqn = TIM3_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM3
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0x0000ffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM3EN)
#define TIMER_0_IRQ_CHAN TIM3_IRQn
#define TIMER_0_ISR isr_tim3
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

30
boards/nucleo-f070/include/periph_conf.h
View File

@ -21,6 +21,8 @@
#ifndef PERIPH_CONF_H_
#define PERIPH_CONF_H_
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
@ -34,24 +36,30 @@ extern "C" {
/* the actual PLL values are automatically generated */
#define CLOCK_PLL_MUL (CLOCK_CORECLOCK / CLOCK_HSE)
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 1)
/** @} */
/**
* @brief Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (1U)
#define TIMER_0_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM3,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM3EN,
.bus = APB1,
.irqn = TIM3_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM3
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM3EN)
#define TIMER_0_IRQ_CHAN TIM3_IRQn
#define TIMER_0_ISR isr_tim3
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

30
boards/nucleo-f072/include/periph_conf.h
View File

@ -20,6 +20,8 @@
#ifndef PERIPH_CONF_H_
#define PERIPH_CONF_H_
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
@ -33,24 +35,30 @@ extern "C" {
/* the actual PLL values are automatically generated */
#define CLOCK_PLL_MUL (CLOCK_CORECLOCK / CLOCK_HSE)
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 1)
/** @} */
/**
* @brief Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (1U)
#define TIMER_0_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_IRQ_CHAN TIM2_IRQn
#define TIMER_0_ISR isr_tim2
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

28
boards/nucleo-f091/include/periph_conf.h
View File

@ -34,24 +34,30 @@ extern "C" {
/* the actual PLL values are automatically generated */
#define CLOCK_PLL_MUL (CLOCK_CORECLOCK / CLOCK_HSE)
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 1)
/** @} */
/**
* @brief Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (1U)
#define TIMER_0_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_IRQ_CHAN TIM2_IRQn
#define TIMER_0_ISR isr_tim2
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

15
boards/nucleo-f103/include/periph_conf.h
View File

@ -31,22 +31,20 @@ extern "C" {
*/
#define CLOCK_HSE (8000000U) /* external oscillator */
#define CLOCK_CORECLOCK (72000000U) /* desired core clock frequency */
/* the actual PLL values are automatically generated */
#define CLOCK_PLL_DIV (1)
#define CLOCK_PLL_MUL (9)
/* AHB, APB1, APB2 dividers */
#define CLOCK_AHB_DIV RCC_CFGR_HPRE_DIV1
#define CLOCK_APB2_DIV RCC_CFGR_PPRE2_DIV1
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV2 /* max 36 MHz (!) */
/* resulting bus clocks */
#define CLOCK_APB1 (CLOCK_CORECLOCK / 2)
#define CLOCK_APB2 (CLOCK_CORECLOCK)
/* Flash latency */
#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY_2 /* for >= 72 MHz */
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 2)
/** @} */
/**
@ -70,12 +68,15 @@ extern "C" {
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0x0000ffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM3,
.max = 0x0000ffff,
.rcc_mask = RCC_APB1ENR_TIM3EN,
.bus = APB1,
.irqn = TIM3_IRQn

1
boards/nucleo-f207/Makefile.features
View File

@ -2,7 +2,6 @@
FEATURES_PROVIDED += periph_cpuid
FEATURES_PROVIDED += periph_gpio
FEATURES_PROVIDED += periph_i2c
FEATURES_PROVIDED += periph_pwm
FEATURES_PROVIDED += periph_rtc
FEATURES_PROVIDED += periph_spi
FEATURES_PROVIDED += periph_timer

37
boards/nucleo-f207/include/periph_conf.h
View File

@ -73,52 +73,37 @@ static const pwm_conf_t pwm_config[PWM_NUMOF] = {
/** @} */
/**
* @name Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (4U)
#define TIMER_0_EN 1
#define TIMER_1_EN 1
#define TIMER_2_EN 1
#define TIMER_3_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[TIMER_NUMOF] = {
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.channels = 4,
.freq = (CLOCK_APB1 * 2),
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn,
.priority = TIMER_IRQ_PRIO
.irqn = TIM2_IRQn
},
{
.dev = TIM5,
.channels = 4,
.freq = (CLOCK_APB1 * 2),
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn,
.priority = TIMER_IRQ_PRIO
.irqn = TIM5_IRQn
},
{
.dev = TIM3,
.channels = 4,
.freq = (CLOCK_APB1 * 2),
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM3EN,
.bus = APB1,
.irqn = TIM3_IRQn,
.priority = TIMER_IRQ_PRIO
.irqn = TIM3_IRQn
},
{
.dev = TIM4,
.channels = 4,
.freq = (CLOCK_APB1 * 2),
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM4EN,
.bus = APB1,
.irqn = TIM4_IRQn,
.priority = TIMER_IRQ_PRIO
.irqn = TIM4_IRQn
}
};
@ -126,6 +111,8 @@ static const timer_conf_t timer_config[TIMER_NUMOF] = {
#define TIMER_1_ISR isr_tim5
#define TIMER_2_ISR isr_tim3
#define TIMER_3_ISR isr_tim4
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

30
boards/nucleo-f303/include/periph_conf.h
View File

@ -21,6 +21,8 @@
#ifndef PERIPH_CONF_H_
#define PERIPH_CONF_H_
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
@ -38,6 +40,11 @@ extern "C" {
#define CLOCK_APB2_DIV RCC_CFGR_PPRE2_DIV1
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV2
#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY_1
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 2)
/** @} */
/**
@ -48,21 +55,22 @@ extern "C" {
/** @} */
/**
* @brief Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (1U)
#define TIMER_0_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_IRQ_CHAN TIM2_IRQn
#define TIMER_0_ISR isr_tim2
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

37
boards/nucleo-f334/include/periph_conf.h
View File

@ -20,6 +20,8 @@
#ifndef PERIPH_CONF_H_
#define PERIPH_CONF_H_
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
@ -37,6 +39,18 @@ extern "C" {
#define CLOCK_APB2_DIV RCC_CFGR_PPRE2_DIV1
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV2
#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY_1
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 2)
/** @} */
/**
* @brief DAC configuration
* @{
*/
#define DAC_NUMOF (0)
/** @} */
/**
@ -50,18 +64,19 @@ extern "C" {
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (1U)
#define TIMER_0_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_ISR isr_tim2
#define TIMER_0_IRQ_CHAN TIM2_IRQn
#define TIMER_0_ISR (isr_tim2)
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

2
boards/nucleo-f401/include/board.h
View File

@ -31,7 +31,7 @@ extern "C" {
* @name xtimer configuration
* @{
*/
#define XTIMER_DEV TIMER_0
#define XTIMER_DEV TIMER_DEV(0)
#define XTIMER_CHAN (0)
#define XTIMER_OVERHEAD (6)
#define XTIMER_BACKOFF (5)

39
boards/nucleo-f401/include/periph_conf.h
View File

@ -49,31 +49,30 @@ extern "C" {
/** @} */
/**
* @name Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (2U)
#define TIMER_0_EN 1
#define TIMER_1_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_ISR isr_tim2
#define TIMER_0_IRQ_CHAN TIM2_IRQn
/* Timer 1 configuration */
#define TIMER_1_DEV TIM5
#define TIMER_1_CHANNELS 4
#define TIMER_1_FREQ (CLOCK_CORECLOCK)
#define TIMER_1_MAX_VALUE (0xffffffff)
#define TIMER_1_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM5EN)
#define TIMER_1_ISR isr_tim5
#define TIMER_1_IRQ_CHAN TIM5_IRQn
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

2
boards/nucleo-f446/include/board.h
View File

@ -31,7 +31,7 @@ extern "C" {
* @name xtimer configuration
* @{
*/
#define XTIMER_DEV TIMER_0
#define XTIMER_DEV TIMER_DEV(0)
#define XTIMER_CHAN (0)
#define XTIMER_OVERHEAD (6)
#define XTIMER_BACKOFF (5)

39
boards/nucleo-f446/include/periph_conf.h
View File

@ -49,31 +49,30 @@ extern "C" {
/** @} */
/**
* @name Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (2U)
#define TIMER_0_EN 1
#define TIMER_1_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_ISR isr_tim2
#define TIMER_0_IRQ_CHAN TIM2_IRQn
/* Timer 1 configuration */
#define TIMER_1_DEV TIM5
#define TIMER_1_CHANNELS 4
#define TIMER_1_FREQ (CLOCK_CORECLOCK)
#define TIMER_1_MAX_VALUE (0xffffffff)
#define TIMER_1_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM5EN)
#define TIMER_1_ISR isr_tim5
#define TIMER_1_IRQ_CHAN TIM5_IRQn
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

18
boards/nucleo-l1/include/periph_conf.h
View File

@ -41,6 +41,11 @@ extern "C" {
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV1 /* APB1 clock -> 32MHz */
/* configuration of flash access cycles */
#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 1)
/** @} */
/**
@ -55,12 +60,17 @@ extern "C" {
* @{
*/
static const timer_conf_t timer_config[] = {
/* device, RCC bit, IRQ bit */
{TIM5, 3, TIM5_IRQn},
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
}
};
/* interrupt routines */
#define TIMER_0_ISR (isr_tim5)
/* number of defined timers */
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */

2
boards/spark-core/include/periph_conf.h
View File

@ -67,12 +67,14 @@
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0x0000ffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM3,
.max = 0x0000ffff,
.rcc_mask = RCC_APB1ENR_TIM3EN,
.bus = APB1,
.irqn = TIM3_IRQn

28
boards/stm32f0discovery/include/periph_conf.h
View File

@ -34,24 +34,30 @@ extern "C" {
/* the actual PLL values are automatically generated */
#define CLOCK_PLL_MUL (CLOCK_CORECLOCK / CLOCK_HSE)
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 1)
/** @} */
/**
* @name Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (1U)
#define TIMER_0_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_ISR isr_tim2
#define TIMER_0_IRQ_CHAN TIM2_IRQn
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

30
boards/stm32f3discovery/include/periph_conf.h
View File

@ -19,6 +19,8 @@
#ifndef PERIPH_CONF_H_
#define PERIPH_CONF_H_
#include "periph_cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
@ -36,6 +38,11 @@ extern "C" {
#define CLOCK_APB2_DIV RCC_CFGR_PPRE2_DIV1
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV2
#define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY_2
/* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2 (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1 (CLOCK_CORECLOCK / 2)
/** @} */
/**
@ -50,21 +57,22 @@ extern "C" {
/** @} */
/**
* @brief Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (1U)
#define TIMER_0_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_ISR isr_tim2
#define TIMER_0_IRQ_CHAN TIM2_IRQn
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**

2
boards/stm32f4discovery/include/board.h
View File

@ -32,7 +32,7 @@ extern "C" {
* @name xtimer configuration
* @{
*/
#define XTIMER_DEV TIMER_0
#define XTIMER_DEV TIMER_DEV(0)
#define XTIMER_CHAN (0)
#define XTIMER_OVERHEAD (6)
#define XTIMER_BACKOFF (10)

41
boards/stm32f4discovery/include/periph_conf.h
View File

@ -50,31 +50,30 @@ extern "C" {
/** @} */
/**
* @name Timer configuration
* @brief Timer configuration
* @{
*/
#define TIMER_NUMOF (2U)
#define TIMER_0_EN 1
#define TIMER_1_EN 1
#define TIMER_IRQ_PRIO 1
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
},
{
.dev = TIM5,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM5EN,
.bus = APB1,
.irqn = TIM5_IRQn
}
};
/* Timer 0 configuration */
#define TIMER_0_DEV TIM2
#define TIMER_0_CHANNELS 4
#define TIMER_0_FREQ (CLOCK_CORECLOCK / 2)
#define TIMER_0_MAX_VALUE (0xffffffff)
#define TIMER_0_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM2EN)
#define TIMER_0_ISR isr_tim2
#define TIMER_0_IRQ_CHAN TIM2_IRQn
/* Timer 1 configuration */
#define TIMER_1_DEV TIM5
#define TIMER_1_CHANNELS 4
#define TIMER_1_FREQ (CLOCK_CORECLOCK / 2)
#define TIMER_1_MAX_VALUE (0xffffffff)
#define TIMER_1_CLKEN() (RCC->APB1ENR |= RCC_APB1ENR_TIM5EN)
#define TIMER_1_ISR isr_tim5
#define TIMER_1_IRQ_CHAN TIM5_IRQn
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**
@ -103,7 +102,7 @@ static const uart_conf_t uart_config[] = {
.irqn = USART3_IRQn,
.dma_stream = 3,
.dma_chan = 4
},
}
};
/* assign ISR vector names */

11
cpu/stm32_common/cpu_common.c
View File

@ -18,8 +18,19 @@
* @}
*/
#include "periph_conf.h"
#include "periph_cpu_common.h"
uint32_t periph_apb_clk(uint8_t bus)
{
if (bus == APB1) {
return CLOCK_APB1;
}
else {
return CLOCK_APB2;
}
}
void periph_clk_en(uint8_t bus, uint32_t mask)
{
if (bus == APB1) {

25
cpu/stm32_common/include/periph_cpu_common.h
View File

@ -30,6 +30,11 @@ extern "C" {
*/
#define CPUID_LEN (12U)
/**
* @brief All STM timers have 4 capture-compare channels
*/
#define TIMER_CHAN (4U)
/**
* @brief Use the shared SPI functions
* @{
@ -65,6 +70,26 @@ typedef uint32_t gpio_t;
*/
#define GPIO_PIN(x, y) ((GPIOA_BASE + (x << 10)) | y)
/**
* @brief Timer configuration
*/
typedef struct {
TIM_TypeDef *dev; /**< timer device */
uint32_t max; /**< maximum value to count to (16/32 bit) */
uint32_t rcc_mask; /**< corresponding bit in the RCC register */
uint8_t bus; /**< APBx bus the timer is clock from */
uint8_t irqn; /**< global IRQ channel */
} timer_conf_t;
/**
* @brief Get the actual bus clock frequency for the APB buses
*
* @param[in] bus target APBx bus
*
* @return bus clock frequency in Hz
*/
uint32_t periph_apb_clk(uint8_t bus);
/**
* @brief Enable the given peripheral clock
*

14
cpu/stm32f1/periph/timer.c → cpu/stm32_common/periph/timer.c
View File

@ -7,7 +7,7 @@
*/
/**
* @ingroup cpu_stm32f1
* @ingroup cpu_stm32_common
* @{
*
* @file
@ -54,9 +54,9 @@ int timer_init(tim_t tim, unsigned long freq, timer_cb_t cb, void *arg)
/* configure the timer as upcounter in continuous mode */
dev(tim)->CR1 = 0;
dev(tim)->CR2 = 0;
dev(tim)->ARR = TIMER_MAXVAL;
dev(tim)->ARR = timer_config[tim].max;
/* set prescaler */
dev(tim)->PSC = ((CLOCK_CORECLOCK / freq) - 1);
dev(tim)->PSC = ((periph_apb_clk(timer_config[tim].bus) / freq) - 1);
/* generate an update event to apply our configuration */
dev(tim)->EGR = TIM_EGR_UG;
@ -76,11 +76,11 @@ int timer_set(tim_t tim, int channel, unsigned int timeout)
int timer_set_absolute(tim_t tim, int channel, unsigned int value)
{
if (channel >= TIMER_CHANNELS) {
if (channel >= TIMER_CHAN) {
return -1;
}
dev(tim)->CCR[channel] = (value & TIMER_MAXVAL);
dev(tim)->CCR[channel] = (value & timer_config[tim].max);
dev(tim)->SR &= ~(TIM_SR_CC1IF << channel);
dev(tim)->DIER |= (TIM_DIER_CC1IE << channel);
@ -89,7 +89,7 @@ int timer_set_absolute(tim_t tim, int channel, unsigned int value)
int timer_clear(tim_t tim, int channel)
{
if (channel >= TIMER_CHANNELS) {
if (channel >= TIMER_CHAN) {
return -1;
}
@ -126,7 +126,7 @@ static inline void irq_handler(tim_t tim)
{
uint32_t status = (dev(tim)->SR & dev(tim)->DIER);
for (unsigned int i = 0; i < TIMER_CHANNELS; i++) {
for (uint8_t i = 0; i < TIMER_CHAN; i++) {
if (status & (TIM_SR_CC1IF << i)) {
dev(tim)->DIER &= ~(TIM_DIER_CC1IE << i);
isr_ctx[tim].cb(isr_ctx[tim].arg, i);

5
cpu/stm32f0/include/stm32f030x8.h
View File

@ -399,10 +399,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler register, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer register, Address offset: 0x4C */

5
cpu/stm32f0/include/stm32f051x8.h
View File

@ -451,10 +451,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler register, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1 - 4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer register, Address offset: 0x4C */

5
cpu/stm32f0/include/stm32f070xb.h
View File

@ -404,10 +404,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler register, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer register, Address offset: 0x4C */

5
cpu/stm32f0/include/stm32f072xb.h
View File

@ -543,10 +543,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler register, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer register, Address offset: 0x4C */

5
cpu/stm32f0/include/stm32f091xc.h
View File

@ -537,10 +537,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler register, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer register, Address offset: 0x4C */

313
cpu/stm32f0/periph/timer.c
View File

@ -1,313 +0,0 @@
/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f0
* @{
*
* @file
* @brief Low-level timer driver implementation
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdlib.h>
#include "cpu.h"
#include "board.h"
#include "sched.h"
#include "thread.h"
#include "periph_conf.h"
#include "periph/timer.h"
/* guard file in case no TIMER devices are defined */
#if TIMER_0_EN || TIMER_1_EN
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev);
/**
* Timer state memory
*/
static timer_isr_ctx_t config[TIMER_NUMOF];
int timer_init(tim_t dev, unsigned long freq, timer_cb_t cb, void *arg)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
/* enable timer peripheral clock */
TIMER_0_CLKEN();
/* set timer's IRQ priority */
NVIC_SetPriority(TIMER_0_IRQ_CHAN, TIMER_IRQ_PRIO);
/* select timer */
timer = TIMER_0_DEV;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
/* enable timer peripheral clock */
TIMER_1_CLKEN();
/* set timer's IRQ priority */
NVIC_SetPriority(TIMER_1_IRQ_CHAN, TIMER_IRQ_PRIO);
/* select timer */
timer = TIMER_1_DEV;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
/* set callback function */
config[dev].cb = cb;
config[dev].arg = arg;
/* set timer to run in counter mode */
timer->CR1 |= TIM_CR1_URS;
/* set auto-reload and prescaler values and load new values */
timer->ARR = TIMER_0_MAX_VALUE;
timer->PSC = (TIMER_0_FREQ / freq) - 1;
timer->EGR |= TIM_EGR_UG;
/* enable the timer's interrupt */
timer_irq_enable(dev);
/* start the timer */
timer_start(dev);
return 0;
}
int timer_set(tim_t dev, int channel, unsigned int timeout)
{
int now = timer_read(dev);
return timer_set_absolute(dev, channel, now + timeout - 1);
}
int timer_set_absolute(tim_t dev, int channel, unsigned int value)
{
TIM_TypeDef *timer = NULL;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
timer = TIMER_0_DEV;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
timer = TIMER_1_DEV;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
switch (channel) {
case 0:
timer->CCR1 = value;
timer->SR &= ~TIM_SR_CC1IF;
timer->DIER |= TIM_DIER_CC1IE;
break;
case 1:
timer->CCR2 = value;
timer->SR &= ~TIM_SR_CC2IF;
timer->DIER |= TIM_DIER_CC2IE;
break;
case 2:
timer->CCR3 = value;
timer->SR &= ~TIM_SR_CC3IF;
timer->DIER |= TIM_DIER_CC3IE;
break;
case 3:
timer->CCR4 = value;
timer->SR &= ~TIM_SR_CC4IF;
timer->DIER |= TIM_DIER_CC4IE;
break;
default:
return -1;
}
return 0;
}
int timer_clear(tim_t dev, int channel)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
timer = TIMER_0_DEV;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
timer = TIMER_1_DEV;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
switch (channel) {
case 0:
timer->DIER &= ~TIM_DIER_CC1IE;
break;
case 1:
timer->DIER &= ~TIM_DIER_CC2IE;
break;
case 2:
timer->DIER &= ~TIM_DIER_CC3IE;
break;
case 3:
timer->DIER &= ~TIM_DIER_CC4IE;
break;
default:
return -1;
}
return 0;
}
unsigned int timer_read(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
return TIMER_0_DEV->CNT;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
return TIMER_1_DEV->CNT;
break;
#endif
case TIMER_UNDEFINED:
default:
return 0;
}
}
void timer_start(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
TIMER_0_DEV->CR1 |= TIM_CR1_CEN;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
TIMER_1_DEV->CR1 |= TIM_CR1_CEN;
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_stop(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
TIMER_0_DEV->CR1 &= ~TIM_CR1_CEN;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
TIMER_1_DEV->CR1 &= ~TIM_CR1_CEN;
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_irq_enable(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
NVIC_EnableIRQ(TIMER_0_IRQ_CHAN);
break;
#endif
#if TIMER_1_EN
case TIMER_1:
NVIC_EnableIRQ(TIMER_1_IRQ_CHAN);
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_irq_disable(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
NVIC_DisableIRQ(TIMER_0_IRQ_CHAN);
break;
#endif
#if TIMER_1_EN
case TIMER_1:
NVIC_DisableIRQ(TIMER_1_IRQ_CHAN);
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
#if TIMER_0_EN
void TIMER_0_ISR(void)
{
irq_handler(TIMER_0, TIMER_0_DEV);
}
#endif
#if TIMER_1_EN
void TIMER_1_ISR(void)
{
irq_handler(TIMER_1, TIMER_1_DEV);
}
#endif
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev)
{
if (dev->SR & TIM_SR_CC1IF) {
dev->DIER &= ~TIM_DIER_CC1IE;
dev->SR &= ~TIM_SR_CC1IF;
config[timer].cb(config[timer].arg, 0);
}
else if (dev->SR & TIM_SR_CC2IF) {
dev->DIER &= ~TIM_DIER_CC2IE;
dev->SR &= ~TIM_SR_CC2IF;
config[timer].cb(config[timer].arg, 1);
}
else if (dev->SR & TIM_SR_CC3IF) {
dev->DIER &= ~TIM_DIER_CC3IE;
dev->SR &= ~TIM_SR_CC3IF;
config[timer].cb(config[timer].arg, 2);
}
else if (dev->SR & TIM_SR_CC4IF) {
dev->DIER &= ~TIM_DIER_CC4IE;
dev->SR &= ~TIM_SR_CC4IF;
config[timer].cb(config[timer].arg, 3);
}
if (sched_context_switch_request) {
thread_yield();
}
}
#endif /* TIMER_0_EN || TIMER_1_EN */

20
cpu/stm32f1/include/periph_cpu.h
View File

@ -30,16 +30,6 @@ extern "C" {
*/
#define ADC_DEVS (2U)
/**
* @brief All timers for the STM32F1 have 4 CC channels
*/
#define TIMER_CHANNELS (4U)
/**
* @brief All timers have a width of 16-bit
*/
#define TIMER_MAXVAL (0xffff)
/**
* @brief declare needed generic SPI functions
* @{
@ -136,16 +126,6 @@ typedef struct {
uint8_t chan; /**< CPU ADC channel connected to the pin */
} adc_conf_t;
/**
* @brief Timer configuration
*/
typedef struct {
TIM_TypeDef *dev; /**< timer device */
uint32_t rcc_mask; /**< corresponding bit in the RCC register */
uint8_t bus; /**< APBx bus the timer is clock from */
uint8_t irqn; /**< global IRQ channel */
} timer_conf_t;
/**
* @brief UART configuration options
*/

16
cpu/stm32f2/include/periph_cpu.h
View File

@ -113,22 +113,6 @@ typedef struct {
uint8_t AF; /**< alternate function */
} pwm_conf_t;
/**
* @brief Timer configuration
* @{
*/
typedef struct {
TIM_TypeDef *dev; /**< timer device */
uint8_t channels; /**< number of channel */
uint32_t freq; /**< frequency */
uint32_t rcc_mask; /**< corresponding bit in the RCC register */
uint8_t bus; /**< APBx bus the timer is clock from */
uint8_t irqn; /**< global IRQ channel */
uint8_t priority; /**< priority */
} timer_conf_t;
/** @} */
/**
* @brief Structure for UART configuration data
* @{

5
cpu/stm32f2/include/stm32f205xx.h
View File

@ -659,10 +659,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

5
cpu/stm32f2/include/stm32f207xx.h
View File

@ -754,10 +754,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

5
cpu/stm32f2/include/stm32f215xx.h
View File

@ -660,10 +660,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

5
cpu/stm32f2/include/stm32f217xx.h
View File

@ -755,10 +755,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

219
cpu/stm32f2/periph/pwm.c
View File

@ -1,219 +0,0 @@
/*
* Copyright (C) 2015 Engineering-Spirit
* Copyright (C) 2016 OTA keys S.A.
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f2
* @{
*
* @file
* @brief Low-level PWM driver implementation
*
* @author Hauke Petersen <mail@haukepetersen.de>
* @author Fabian Nack <nack@inf.fu-berlin.de>
* @author Nick v. IJzendoorn <nijzendoorn@engineering-spirit.nl>
* @author Aurelien Gonce <aurelien.gonce@altran.fr>
*
* @}
*/
#include <stdint.h>
#include <string.h>
#include "cpu.h"
#include "periph/pwm.h"
#include "periph_conf.h"
#include "periph/timer.h"
/* ignore file in case no PWM devices are defined */
#if (PWM_NUMOF > 0)
/**
* @brief Get the timer device
*/
static inline TIM_TypeDef *get_tim_dev(pwm_t tim)
{
return timer_config[tim].dev;
}
/**
* @brief Get the pwm device
*/
static inline GPIO_TypeDef *get_pwm_port(pwm_t pwm)
{
return pwm_config[pwm].port;
}
uint32_t pwm_init(pwm_t dev, pwm_mode_t mode, uint32_t freq, uint16_t res)
{
GPIO_TypeDef *port = get_pwm_port(dev);
tim_t tim = pwm_config[dev].tim;
TIM_TypeDef *timer_dev = get_tim_dev(tim);
uint8_t channels = pwm_channels(tim);
uint32_t pins[channels];
/* enable timer peripheral clock */
pwm_poweron(tim);
/* pins configuration */
pins[0] = pwm_config[dev].CH0;
if (channels > 1) {
pins[1] = pwm_config[dev].CH1;
}
if (channels > 2) {
pins[2] = pwm_config[dev].CH2;
}
if (channels > 3) {
pins[3] = pwm_config[dev].CH3;
}
/* enable pwm peripheral */
if (pwm_config[dev].bus == AHB1) {
RCC->AHB1ENR |= pwm_config[dev].rcc_mask;
} else if (pwm_config[dev].bus == AHB2) {
RCC->AHB2ENR |= pwm_config[dev].rcc_mask;
} else {
RCC->AHB3ENR |= pwm_config[dev].rcc_mask;
}
/* setup pins: alternate function */
for (int i = 0; i < channels; i++) {
port->MODER &= ~(3 << (pins[i] * 2));
port->MODER |= (2 << (pins[i] * 2));
if (pins[i] < 8) {
port->AFR[0] &= ~(0xf << (pins[i] * 4));
port->AFR[0] |= (pwm_config[dev].AF << (pins[i] * 4));
} else {
port->AFR[1] &= ~(0xf << ((pins[i] - 8) * 4));
port->AFR[1] |= (pwm_config[dev].AF << ((pins[i] - 8) * 4));
}
}
/* Reset C/C and timer configuration register */
switch (channels) {
case 4:
timer_dev->CCR4 = 0;
/* Fall through */
case 3:
timer_dev->CCR3 = 0;
timer_dev->CR2 = 0;
/* Fall through */
case 2:
timer_dev->CCR2 = 0;
/* Fall through */
case 1:
timer_dev->CCR1 = 0;
timer_dev->CR1 = 0;
break;
}
/* set prescale and auto-reload registers to matching values for resolution and frequency */
if (res > 0xffff || (res * freq) > timer_config[tim].freq) {
return 0;
}
timer_dev->PSC = (timer_config[tim].freq / (res * freq)) - 1;
timer_dev->ARR = res - 1;
/* calculate the actual PWM frequency */
freq = (timer_config[tim].freq / (res * (timer_dev->PSC + 1)));
/* set PWM mode */
switch (mode) {
case PWM_LEFT:
timer_dev->CCMR1 = (TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1M_2 |
TIM_CCMR1_OC2M_1 | TIM_CCMR1_OC2M_2);
if (channels > 2) {
timer_dev->CCMR2 = (TIM_CCMR2_OC3M_1 | TIM_CCMR2_OC3M_2 |
TIM_CCMR2_OC4M_1 | TIM_CCMR2_OC4M_2);
}
break;
case PWM_RIGHT:
timer_dev->CCMR1 = (TIM_CCMR1_OC1M_0 | TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1M_2 |
TIM_CCMR1_OC2M_0 | TIM_CCMR1_OC2M_1 | TIM_CCMR1_OC2M_2);
if (channels > 2) {
timer_dev->CCMR2 = (TIM_CCMR2_OC3M_0 | TIM_CCMR2_OC3M_1 | TIM_CCMR2_OC3M_2 |
TIM_CCMR2_OC4M_0 | TIM_CCMR2_OC4M_1 | TIM_CCMR2_OC4M_2);
}
break;
case PWM_CENTER:
timer_dev->CCMR1 = 0;
if (channels > 2) {
timer_dev->CCMR2 = 0;
}
timer_dev->CR1 |= (TIM_CR1_CMS_0 | TIM_CR1_CMS_1);
break;
}
/* enable output on PWM pins */
timer_dev->CCER = (TIM_CCER_CC1E | TIM_CCER_CC2E | TIM_CCER_CC3E | TIM_CCER_CC4E);
/* enable PWM outputs */
timer_dev->BDTR = TIM_BDTR_MOE;
/* enable timer ergo the PWM generation */
pwm_start(tim);
return freq;
}
uint8_t pwm_channels(pwm_t dev) {
return (timer_config[dev].channels);
}
void pwm_set(pwm_t dev, uint8_t channel, uint16_t value)
{
tim_t tim = pwm_config[dev].tim;
TIM_TypeDef *timer_dev = get_tim_dev(tim);
if (channel >= pwm_channels(tim)) {
return;
}
/* norm value to maximum possible value */
if (value > timer_dev->ARR) {
value = (uint16_t) timer_dev->ARR;
}
switch (channel) {
case 0:
timer_dev->CCR1 = value;
break;
case 1:
timer_dev->CCR2 = value;
break;
case 2:
timer_dev->CCR3 = value;
break;
case 3:
timer_dev->CCR4 = value;
break;
default:
break;
}
}
void pwm_start(pwm_t dev)
{
get_tim_dev(dev)->CR1 |= TIM_CR1_CEN;
}
void pwm_stop(pwm_t dev)
{
get_tim_dev(dev)->CR1 &= ~(TIM_CR1_CEN);
}
void pwm_poweron(pwm_t dev)
{
periph_clk_en(timer_config[dev].bus, timer_config[dev].rcc_mask);
}
void pwm_poweroff(pwm_t dev)
{
periph_clk_dis(timer_config[dev].bus, timer_config[dev].rcc_mask);
}
#endif /* PWM_NUMOF > 0*/

203
cpu/stm32f2/periph/timer.c
View File

@ -1,203 +0,0 @@
/*
* Copyright (C) 2014 Freie Universität Berlin
* Copyright (C) 2016 OTA keys S.A.
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f2
* @{
*
* @file
* @brief Low-level timer driver implementation
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @author Aurelien Gonce <aurelien.gonce@altran.fr>
*
* @}
*/
#include <stdlib.h>
#include "cpu.h"
#include "board.h"
#include "sched.h"
#include "thread.h"
#include "periph_conf.h"
#include "periph/timer.h"
/** Unified IRQ handler for all timers */
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev);
/** Timer state memory */
static timer_isr_ctx_t config[TIMER_NUMOF];
/**
* @brief Get the timer device
*/
static inline TIM_TypeDef *get_dev(tim_t tim)
{
return timer_config[tim].dev;
}
int timer_init(tim_t dev, unsigned long freq, timer_cb_t cb, void *arg)
{
/* check if device is valid */
if (dev >= TIMER_NUMOF) {
return -1;
}
/* enable timer peripheral clock */
periph_clk_en(timer_config[dev].bus, timer_config[dev].rcc_mask);
/* set timer's IRQ priority */
NVIC_SetPriority(timer_config[dev].irqn, timer_config[dev].priority);
/* set prescaler */
get_dev(dev)->PSC = (timer_config[dev].freq / freq) - 1;
/* set callback function */
config[dev].cb = cb;
config[dev].arg = arg;
/* set timer to run in counter mode */
get_dev(dev)->CR1 = 0;
get_dev(dev)->CR2 = 0;
/* set auto-reload and prescaler values and load new values */
get_dev(dev)->EGR |= TIM_EGR_UG;
/* enable the timer's interrupt */
timer_irq_enable(dev);
/* start the timer */
timer_start(dev);
return 0;
}
int timer_set(tim_t dev, int channel, unsigned int timeout)
{
int now = timer_read(dev);
return timer_set_absolute(dev, channel, now + timeout);
}
int timer_set_absolute(tim_t dev, int channel, unsigned int value)
{
if (channel >= timer_config[dev].channels || dev >= TIMER_NUMOF) {
return -1;
}
switch (channel) {
case 0:
get_dev(dev)->CCR1 = value;
get_dev(dev)->SR &= ~TIM_SR_CC1IF;
get_dev(dev)->DIER |= TIM_DIER_CC1IE;
break;
case 1:
get_dev(dev)->CCR2 = value;
get_dev(dev)->SR &= ~TIM_SR_CC2IF;
get_dev(dev)->DIER |= TIM_DIER_CC2IE;
break;
case 2:
get_dev(dev)->CCR3 = value;
get_dev(dev)->SR &= ~TIM_SR_CC3IF;
get_dev(dev)->DIER |= TIM_DIER_CC3IE;
break;
case 3:
get_dev(dev)->CCR4 = value;
get_dev(dev)->SR &= ~TIM_SR_CC4IF;
get_dev(dev)->DIER |= TIM_DIER_CC4IE;
break;
default:
return -1;
}
return 0;
}
int timer_clear(tim_t dev, int channel)
{
if (channel >= timer_config[dev].channels || dev >= TIMER_NUMOF) {
return -1;
}
get_dev(dev)->DIER &= ~(TIM_DIER_CC1IE << channel);
return 0;
}
unsigned int timer_read(tim_t dev)
{
return (unsigned int)get_dev(dev)->CNT;
}
void timer_start(tim_t dev)
{
get_dev(dev)->CR1 |= TIM_CR1_CEN;
}
void timer_stop(tim_t dev)
{
get_dev(dev)->CR1 &= ~TIM_CR1_CEN;
}
void timer_irq_enable(tim_t dev)
{
NVIC_EnableIRQ(timer_config[dev].irqn);
}
void timer_irq_disable(tim_t dev)
{
NVIC_DisableIRQ(timer_config[dev].irqn);
}
void TIMER_0_ISR(void)
{
irq_handler(TIMER_0, get_dev(TIMER_0));
}
void TIMER_1_ISR(void)
{
irq_handler(TIMER_1, get_dev(TIMER_1));
}
void TIMER_2_ISR(void)
{
irq_handler(TIMER_2, get_dev(TIMER_2));
}
void TIMER_3_ISR(void)
{
irq_handler(TIMER_3, get_dev(TIMER_3));
}
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev)
{
if (dev->SR & TIM_SR_CC1IF) {
dev->DIER &= ~TIM_DIER_CC1IE;
dev->SR &= ~TIM_SR_CC1IF;
config[timer].cb(config[timer].arg, 0);
}
else if (dev->SR & TIM_SR_CC2IF) {
dev->DIER &= ~TIM_DIER_CC2IE;
dev->SR &= ~TIM_SR_CC2IF;
config[timer].cb(config[timer].arg, 1);
}
else if (dev->SR & TIM_SR_CC3IF) {
dev->DIER &= ~TIM_DIER_CC3IE;
dev->SR &= ~TIM_SR_CC3IF;
config[timer].cb(config[timer].arg, 2);
}
else if (dev->SR & TIM_SR_CC4IF) {
dev->DIER &= ~TIM_DIER_CC4IE;
dev->SR &= ~TIM_SR_CC4IF;
config[timer].cb(config[timer].arg, 3);
}
if (sched_context_switch_request) {
thread_yield();
}
}

5
cpu/stm32f3/include/stm32f303xc.h
View File

@ -601,10 +601,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

5
cpu/stm32f3/include/stm32f303xe.h
View File

@ -676,10 +676,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

5
cpu/stm32f3/include/stm32f334x8.h
View File

@ -693,10 +693,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

17
cpu/stm32f3/periph/pwm.c
View File

@ -167,22 +167,7 @@ void pwm_set(pwm_t dev, uint8_t channel, uint16_t value)
return;
}
switch (channel) {
case 0:
tim->CCR1 = value;
break;
case 1:
tim->CCR2 = value;
break;
case 2:
tim->CCR3 = value;
break;
case 3:
tim->CCR4 = value;
break;
default:
return;
}
tim->CCR[channel] = value;
}
void pwm_start(pwm_t dev)

259
cpu/stm32f3/periph/timer.c
View File

@ -1,259 +0,0 @@
/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f3
* @{
*
* @file
* @brief Low-level timer driver implementation
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdlib.h>
#include "cpu.h"
#include "board.h"
#include "sched.h"
#include "thread.h"
#include "periph_conf.h"
#include "periph/timer.h"
/** Unified IRQ handler for all timers */
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev);
/** Timer state memory */
static timer_isr_ctx_t config[TIMER_NUMOF];
int timer_init(tim_t dev, unsigned long freq, timer_cb_t cb, void *arg)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
/* enable timer peripheral clock */
TIMER_0_CLKEN();
/* set timer's IRQ priority */
NVIC_SetPriority(TIMER_0_IRQ_CHAN, TIMER_IRQ_PRIO);
/* select timer */
timer = TIMER_0_DEV;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
/* set callback function */
config[dev].cb = cb;
config[dev].arg = arg;
/* set timer to run in counter mode */
timer->CR1 = 0;
timer->CR2 = 0;
/* set auto-reload and prescaler values and load new values */
timer->PSC = (TIMER_0_FREQ / freq) - 1;
timer->EGR |= TIM_EGR_UG;
/* enable the timer's interrupt */
timer_irq_enable(dev);
/* start the timer */
timer_start(dev);
return 0;
}
int timer_set(tim_t dev, int channel, unsigned int timeout)
{
int now = timer_read(dev);
return timer_set_absolute(dev, channel, now + timeout - 1);
}
int timer_set_absolute(tim_t dev, int channel, unsigned int value)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
timer = TIMER_0_DEV;
break;
#endif
default:
return -1;
}
switch (channel) {
case 0:
timer->CCR1 = value;
timer->SR &= ~TIM_SR_CC1IF;
timer->DIER |= TIM_DIER_CC1IE;
break;
case 1:
timer->CCR2 = value;
timer->SR &= ~TIM_SR_CC2IF;
timer->DIER |= TIM_DIER_CC2IE;
break;
case 2:
timer->CCR3 = value;
timer->SR &= ~TIM_SR_CC3IF;
timer->DIER |= TIM_DIER_CC3IE;
break;
case 3:
timer->CCR4 = value;
timer->SR &= ~TIM_SR_CC4IF;
timer->DIER |= TIM_DIER_CC4IE;
break;
default:
return -1;
}
return 0;
}
int timer_clear(tim_t dev, int channel)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
timer = TIMER_0_DEV;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
switch (channel) {
case 0:
timer->DIER &= ~TIM_DIER_CC1IE;
break;
case 1:
timer->DIER &= ~TIM_DIER_CC2IE;
break;
case 2:
timer->DIER &= ~TIM_DIER_CC3IE;
break;
case 3:
timer->DIER &= ~TIM_DIER_CC4IE;
break;
default:
return -1;
}
return 0;
}
unsigned int timer_read(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
return TIMER_0_DEV->CNT;
break;
#endif
case TIMER_UNDEFINED:
default:
return 0;
}
}
void timer_start(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
TIMER_0_DEV->CR1 |= TIM_CR1_CEN;
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_stop(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
TIMER_0_DEV->CR1 &= ~TIM_CR1_CEN;
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_irq_enable(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
NVIC_EnableIRQ(TIMER_0_IRQ_CHAN);
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_irq_disable(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
NVIC_DisableIRQ(TIMER_0_IRQ_CHAN);
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
#if TIMER_0_EN
void TIMER_0_ISR(void)
{
irq_handler(TIMER_0, TIMER_0_DEV);
}
#endif
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev)
{
if (dev->SR & TIM_SR_CC1IF) {
dev->DIER &= ~TIM_DIER_CC1IE;
dev->SR &= ~TIM_SR_CC1IF;
config[timer].cb(config[timer].arg, 0);
}
else if (dev->SR & TIM_SR_CC2IF) {
dev->DIER &= ~TIM_DIER_CC2IE;
dev->SR &= ~TIM_SR_CC2IF;
config[timer].cb(config[timer].arg, 1);
}
else if (dev->SR & TIM_SR_CC3IF) {
dev->DIER &= ~TIM_DIER_CC3IE;
dev->SR &= ~TIM_SR_CC3IF;
config[timer].cb(config[timer].arg, 2);
}
else if (dev->SR & TIM_SR_CC4IF) {
dev->DIER &= ~TIM_DIER_CC4IE;
dev->SR &= ~TIM_SR_CC4IF;
config[timer].cb(config[timer].arg, 3);
}
if (sched_context_switch_request) {
thread_yield();
}
}

5
cpu/stm32f4/include/stm32f401xe.h
View File

@ -498,10 +498,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

5
cpu/stm32f4/include/stm32f407xx.h
View File

@ -757,10 +757,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

5
cpu/stm32f4/include/stm32f415xx.h
View File

@ -663,10 +663,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

5
cpu/stm32f4/include/stm32f446xx.h
View File

@ -774,10 +774,7 @@ typedef struct
__IO uint32_t PSC; /*!< TIM prescaler, Address offset: 0x28 */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
__IO uint32_t RCR; /*!< TIM repetition counter register, Address offset: 0x30 */
__IO uint32_t CCR1; /*!< TIM capture/compare register 1, Address offset: 0x34 */
__IO uint32_t CCR2; /*!< TIM capture/compare register 2, Address offset: 0x38 */
__IO uint32_t CCR3; /*!< TIM capture/compare register 3, Address offset: 0x3C */
__IO uint32_t CCR4; /*!< TIM capture/compare register 4, Address offset: 0x40 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare register 1-4, Address offset: 0x34 */
__IO uint32_t BDTR; /*!< TIM break and dead-time register, Address offset: 0x44 */
__IO uint32_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
__IO uint32_t DMAR; /*!< TIM DMA address for full transfer, Address offset: 0x4C */

25
cpu/stm32f4/periph/pwm.c
View File

@ -102,17 +102,17 @@ uint32_t pwm_init(pwm_t dev, pwm_mode_t mode, uint32_t freq, uint16_t res)
/* Reset C/C and timer configuration register */
switch (channels) {
case 4:
tim->CCR4 = 0;
tim->CCR[3] = 0;
/* Fall through */
case 3:
tim->CCR3 = 0;
tim->CCR[2] = 0;
tim->CR2 = 0;
/* Fall through */
case 2:
tim->CCR2 = 0;
tim->CCR[1] = 0;
/* Fall through */
case 1:
tim->CCR1 = 0;
tim->CCR[0] = 0;
tim->CR1 = 0;
break;
}
@ -211,22 +211,7 @@ void pwm_set(pwm_t dev, uint8_t channel, uint16_t value)
value = (uint32_t)tim->ARR;
}
switch (channel) {
case 0:
tim->CCR1 = value;
break;
case 1:
tim->CCR2 = value;
break;
case 2:
tim->CCR3 = value;
break;
case 3:
tim->CCR4 = value;
break;
default:
return;
}
tim->CCR[channel] = value;
}
void pwm_start(pwm_t dev)

309
cpu/stm32f4/periph/timer.c
View File

@ -1,309 +0,0 @@
/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @ingroup cpu_stm32f4
* @{
*
* @file
* @brief Low-level timer driver implementation
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdlib.h>
#include "cpu.h"
#include "board.h"
#include "sched.h"
#include "thread.h"
#include "periph_conf.h"
#include "periph/timer.h"
/** Unified IRQ handler for all timers */
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev);
/** Timer state memory */
static timer_isr_ctx_t config[TIMER_NUMOF];
int timer_init(tim_t dev, unsigned long freq, timer_cb_t cb, void *arg)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
/* enable timer peripheral clock */
TIMER_0_CLKEN();
/* set timer's IRQ priority */
NVIC_SetPriority(TIMER_0_IRQ_CHAN, TIMER_IRQ_PRIO);
/* select timer */
timer = TIMER_0_DEV;
timer->PSC = (TIMER_0_FREQ / freq) - 1;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
/* enable timer peripheral clock */
TIMER_1_CLKEN();
/* set timer's IRQ priority */
NVIC_SetPriority(TIMER_1_IRQ_CHAN, TIMER_IRQ_PRIO);
/* select timer */
timer = TIMER_1_DEV;
timer->PSC = (TIMER_1_FREQ / freq) - 1;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
/* set callback function */
config[dev].cb = cb;
config[dev].arg = arg;
/* set timer to run in counter mode */
timer->CR1 = 0;
timer->CR2 = 0;
/* set auto-reload and prescaler values and load new values */
timer->EGR |= TIM_EGR_UG;
/* enable the timer's interrupt */
timer_irq_enable(dev);
/* start the timer */
timer_start(dev);
return 0;
}
int timer_set(tim_t dev, int channel, unsigned int timeout)
{
int now = timer_read(dev);
return timer_set_absolute(dev, channel, now + timeout - 1);
}
int timer_set_absolute(tim_t dev, int channel, unsigned int value)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
timer = TIMER_0_DEV;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
timer = TIMER_1_DEV;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
switch (channel) {
case 0:
timer->CCR1 = value;
timer->SR &= ~TIM_SR_CC1IF;
timer->DIER |= TIM_DIER_CC1IE;
break;
case 1:
timer->CCR2 = value;
timer->SR &= ~TIM_SR_CC2IF;
timer->DIER |= TIM_DIER_CC2IE;
break;
case 2:
timer->CCR3 = value;
timer->SR &= ~TIM_SR_CC3IF;
timer->DIER |= TIM_DIER_CC3IE;
break;
case 3:
timer->CCR4 = value;
timer->SR &= ~TIM_SR_CC4IF;
timer->DIER |= TIM_DIER_CC4IE;
break;
default:
return -1;
}
return 0;
}
int timer_clear(tim_t dev, int channel)
{
TIM_TypeDef *timer;
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
timer = TIMER_0_DEV;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
timer = TIMER_1_DEV;
break;
#endif
case TIMER_UNDEFINED:
default:
return -1;
}
switch (channel) {
case 0:
timer->DIER &= ~TIM_DIER_CC1IE;
break;
case 1:
timer->DIER &= ~TIM_DIER_CC2IE;
break;
case 2:
timer->DIER &= ~TIM_DIER_CC3IE;
break;
case 3:
timer->DIER &= ~TIM_DIER_CC4IE;
break;
default:
return -1;
}
return 0;
}
unsigned int timer_read(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
return TIMER_0_DEV->CNT;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
return TIMER_1_DEV->CNT;
break;
#endif
case TIMER_UNDEFINED:
default:
return 0;
}
}
void timer_start(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
TIMER_0_DEV->CR1 |= TIM_CR1_CEN;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
TIMER_1_DEV->CR1 |= TIM_CR1_CEN;
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_stop(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
TIMER_0_DEV->CR1 &= ~TIM_CR1_CEN;
break;
#endif
#if TIMER_1_EN
case TIMER_1:
TIMER_1_DEV->CR1 &= ~TIM_CR1_CEN;
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_irq_enable(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
NVIC_EnableIRQ(TIMER_0_IRQ_CHAN);
break;
#endif
#if TIMER_1_EN
case TIMER_1:
NVIC_EnableIRQ(TIMER_1_IRQ_CHAN);
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void timer_irq_disable(tim_t dev)
{
switch (dev) {
#if TIMER_0_EN
case TIMER_0:
NVIC_DisableIRQ(TIMER_0_IRQ_CHAN);
break;
#endif
#if TIMER_1_EN
case TIMER_1:
NVIC_DisableIRQ(TIMER_1_IRQ_CHAN);
break;
#endif
case TIMER_UNDEFINED:
break;
}
}
void TIMER_0_ISR(void)
{
irq_handler(TIMER_0, TIMER_0_DEV);
}
void TIMER_1_ISR(void)
{
irq_handler(TIMER_1, TIMER_1_DEV);
}
static inline void irq_handler(tim_t timer, TIM_TypeDef *dev)
{
if (dev->SR & TIM_SR_CC1IF) {
dev->DIER &= ~TIM_DIER_CC1IE;
dev->SR &= ~TIM_SR_CC1IF;
config[timer].cb(config[timer].arg, 0);
}
else if (dev->SR & TIM_SR_CC2IF) {
dev->DIER &= ~TIM_DIER_CC2IE;
dev->SR &= ~TIM_SR_CC2IF;
config[timer].cb(config[timer].arg, 1);
}
else if (dev->SR & TIM_SR_CC3IF) {
dev->DIER &= ~TIM_DIER_CC3IE;
dev->SR &= ~TIM_SR_CC3IF;
config[timer].cb(config[timer].arg, 2);
}
else if (dev->SR & TIM_SR_CC4IF) {
dev->DIER &= ~TIM_DIER_CC4IE;
dev->SR &= ~TIM_SR_CC4IF;
config[timer].cb(config[timer].arg, 3);
}
if (sched_context_switch_request) {
thread_yield();
}
}

9
cpu/stm32l1/include/periph_cpu.h
View File

@ -107,15 +107,6 @@ typedef struct {
*/
void gpio_init_af(gpio_t pin, gpio_af_t af);
/**
* @brief Timer configuration data structure
*/
typedef struct {
TIM_TypeDef *dev; /**< timer device */
uint8_t rcc; /**< bit in the RCC register */
uint8_t irqn; /**< IRQ vector entry number */
} timer_conf_t;
/**
* @brief I2C configuration data structure
*/

2
cpu/stm32l1/include/stm32l1xx.h
View File

@ -852,7 +852,7 @@ typedef struct
uint16_t RESERVED10; /*!< Reserved, 0x2A */
__IO uint32_t ARR; /*!< TIM auto-reload register, Address offset: 0x2C */
uint32_t RESERVED12; /*!< Reserved, 0x30 */
__IO uint32_t CCR[4]; /*!< TIM capture/compare registers 1-4, Address offset: 0x34 ++ */
__IO uint32_t CCR[4]; /*!< TIM capture/compare registers 1-4, Address offset: 0x34 ++ */
uint32_t RESERVED17; /*!< Reserved, 0x44 */
__IO uint16_t DCR; /*!< TIM DMA control register, Address offset: 0x48 */
uint16_t RESERVED18; /*!< Reserved, 0x4A */

163
cpu/stm32l1/periph/timer.c
View File

@ -1,163 +0,0 @@
/*
* Copyright (C) 2014-2015 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser General
* Public License v2.1. See the file LICENSE in the top level directory for more
* details.
*/
/**
* @addtogroup driver_periph
* @{
*
* @file
* @brief Low-level timer driver implementation
*
* @author Thomas Eichinger <thomas.eichinger@fu-berlin.de>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include "cpu.h"
#include "sched.h"
#include "thread.h"
#include "periph_conf.h"
#include "periph/timer.h"
/**
* @brief All timers on this CPU have 4 channels
*/
#define CHANNEL_NUMOF (4U)
/**
* @brief Interrupt state
*/
static timer_isr_ctx_t isr_ctx[TIMER_NUMOF];
/**
* @brief Get the timers base register
*/
static inline TIM_TypeDef *_tim(tim_t dev)
{
return timer_config[dev].dev;
}
int timer_init(tim_t dev, unsigned long freq, timer_cb_t cb, void *arg)
{
TIM_TypeDef *tim;
/* check if given timer exists */
if (dev >= TIMER_NUMOF) {
return -1;
}
/* get base register */
tim = _tim(dev);
/* save callback */
isr_ctx[dev].cb = cb;
isr_ctx[dev].arg = arg;
/* enable peripheral clock */
RCC->APB1ENR |= (1 << timer_config[dev].rcc);
/* reset timer and configure to up-counting mode */
tim->CR1 = 0;
tim->CR2 = 0;
tim->SR = 0;
/* configure reload and pre-scaler values */
tim->ARR = 0xffffffff;
tim->PSC = (CLOCK_CORECLOCK / freq) - 1;
/* trigger update event to make pre-scaler value effective */
tim->EGR = TIM_EGR_UG;
/* enable interrupts and start the timer */
timer_irq_enable(dev);
timer_start(dev);
return 0;
}
int timer_set(tim_t dev, int channel, unsigned int timeout)
{
int now = timer_read(dev);
return timer_set_absolute(dev, channel, now + timeout - 1);
}
int timer_set_absolute(tim_t dev, int channel, unsigned int value)
{
TIM_TypeDef *tim;
if (dev >= TIMER_NUMOF || channel >= CHANNEL_NUMOF || channel < 0) {
return -1;
}
tim = _tim(dev);
tim->CCR[channel] = value;
tim->SR &= ~(1 << (channel + 1));
tim->DIER |= (1 << (channel + 1));
return 0;
}
int timer_clear(tim_t dev, int channel)
{
TIM_TypeDef *tim;
if (dev >= TIMER_NUMOF || channel >= CHANNEL_NUMOF || channel < 0) {
return -1;
}
tim = _tim(dev);
tim->DIER &= ~(1 << (channel + 1));
return 0;
}
unsigned int timer_read(tim_t dev)
{
return (unsigned int)_tim(dev)->CNT;
}
void timer_start(tim_t dev)
{
_tim(dev)->CR1 |= TIM_CR1_CEN;
}
void timer_stop(tim_t dev)
{
_tim(dev)->CR1 &= ~(TIM_CR1_CEN);
}
void timer_irq_enable(tim_t dev)
{
NVIC_EnableIRQ(timer_config[dev].irqn);
}
void timer_irq_disable(tim_t dev)
{
NVIC_DisableIRQ(timer_config[dev].irqn);
}
static inline void irq_handler(tim_t num, TIM_TypeDef *tim)
{
for (int i = 0; i < CHANNEL_NUMOF; i++) {
uint16_t bit = (1 << (i + 1));
if ((tim->SR & bit) && (tim->DIER & bit)) {
tim->SR &= ~(bit);
tim->DIER &= ~(bit);
isr_ctx[num].cb(isr_ctx[num].arg, i);
}
}
if (sched_context_switch_request) {
thread_yield();
}
}
#ifdef TIMER_0_ISR
void TIMER_0_ISR(void)
{
irq_handler(0, timer_config[0].dev);
}
#endif
#ifdef TIMER_1_ISR
void TIMER_1_ISR(void)
{
irq_handler(0, timer_config[0].dev);
}
#endif