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RIOT/boards/stm32f723e-disco/include/periph_conf.h
Yannick Gicquel d37adee32d boards/stm32-based: allow SPI signals routed on multiple alternate functions 
There is no hardware limitation for custom boards based on STM32 to uses
SPI bus with signals coming from different PORT and alternate functions.

This patch allow alternate's function definition per pin basis, thus enable
the support of SPI bus signals routed on differents PORT.

Signed-off-by: Yannick Gicquel <ygicquel@gmail.com>
2019-10-25 06:27:41 +02:00

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/*
* Copyright (C) 2019 Inria
*
* 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 boards_stm32f723e-disco
* @{
*
* @file
* @brief Peripheral MCU configuration for the STM32F723E-DISCO board
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*/
#ifndef PERIPH_CONF_H
#define PERIPH_CONF_H
#include "periph_cpu.h"
#include "cfg_rtt_default.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name Clock settings
*
* @note This is auto-generated from
* `cpu/stm32_common/dist/clk_conf/clk_conf.c`
* @{
*/
/* give the target core clock (HCLK) frequency [in Hz],
* maximum: 216MHz */
#define CLOCK_CORECLOCK (216000000U)
/* 0: no external high speed crystal available
* else: actual crystal frequency [in Hz] */
#define CLOCK_HSE (25000000U)
/* 0: no external low speed crystal available,
* 1: external crystal available (always 32.768kHz) */
#define CLOCK_LSE (1)
/* peripheral clock setup */
#define CLOCK_AHB_DIV RCC_CFGR_HPRE_DIV1
#define CLOCK_AHB (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1_DIV RCC_CFGR_PPRE1_DIV4 /* max 54MHz */
#define CLOCK_APB1 (CLOCK_CORECLOCK / 4)
#define CLOCK_APB2_DIV RCC_CFGR_PPRE2_DIV2 /* max 108MHz */
#define CLOCK_APB2 (CLOCK_CORECLOCK / 2)
/* Main PLL factors */
#define CLOCK_PLL_M (25)
#define CLOCK_PLL_N (432)
#define CLOCK_PLL_P (2)
#define CLOCK_PLL_Q (9)
/** @} */
/**
* @name Timer configuration
* @{
*/
static const timer_conf_t timer_config[] = {
{
.dev = TIM2,
.max = 0xffffffff,
.rcc_mask = RCC_APB1ENR_TIM2EN,
.bus = APB1,
.irqn = TIM2_IRQn
}
};
#define TIMER_0_ISR isr_tim2
#define TIMER_NUMOF (sizeof(timer_config) / sizeof(timer_config[0]))
/** @} */
/**
* @name UART configuration
* @{
*/
static const uart_conf_t uart_config[] = {
{
.dev = USART6,
.rcc_mask = RCC_APB2ENR_USART6EN,
.rx_pin = GPIO_PIN(PORT_C, 6),
.tx_pin = GPIO_PIN(PORT_C, 7),
.rx_af = GPIO_AF8,
.tx_af = GPIO_AF8,
.bus = APB2,
.irqn = USART6_IRQn,
#ifdef MODULE_STM32_PERIPH_UART_HW_FC
.cts_pin = GPIO_UNDEF,
.rts_pin = GPIO_UNDEF,
.cts_af = GPIO_AF8,
.rts_af = GPIO_AF8,
#endif
},
{ /* Arduino connector (D0/D1) */
.dev = USART2,
.rcc_mask = RCC_APB1ENR_USART2EN,
.rx_pin = GPIO_PIN(PORT_A, 3),
.tx_pin = GPIO_PIN(PORT_A, 2),
.rx_af = GPIO_AF7,
.tx_af = GPIO_AF7,
.bus = APB1,
.irqn = USART2_IRQn,
#ifdef MODULE_STM32_PERIPH_UART_HW_FC
.cts_pin = GPIO_UNDEF,
.rts_pin = GPIO_UNDEF,
.cts_af = GPIO_AF8,
.rts_af = GPIO_AF8,
#endif
},
{ /* PMOD connector */
.dev = UART7,
.rcc_mask = RCC_APB1ENR_UART7EN,
.rx_pin = GPIO_PIN(PORT_F, 6),
.tx_pin = GPIO_PIN(PORT_F, 7),
.rx_af = GPIO_AF8,
.tx_af = GPIO_AF8,
.bus = APB1,
.irqn = UART7_IRQn,
#ifdef MODULE_STM32_PERIPH_UART_HW_FC
.cts_pin = GPIO_PIN(PORT_F, 9),
.rts_pin = GPIO_PIN(PORT_F, 8),
.cts_af = GPIO_AF8,
.rts_af = GPIO_AF8,
#endif
},
{ /* ESP-01 connector */
.dev = UART5,
.rcc_mask = RCC_APB1ENR_UART5EN,
.rx_pin = GPIO_PIN(PORT_D, 2),
.tx_pin = GPIO_PIN(PORT_C, 12),
.rx_af = GPIO_AF8,
.tx_af = GPIO_AF8,
.bus = APB1,
.irqn = UART5_IRQn,
#ifdef MODULE_STM32_PERIPH_UART_HW_FC
.cts_pin = GPIO_UNDEF,
.rts_pin = GPIO_UNDEF,
.cts_af = GPIO_AF8,
.rts_af = GPIO_AF8,
#endif
},
};
#define UART_0_ISR (isr_usart6)
#define UART_1_ISR (isr_usart2)
#define UART_2_ISR (isr_uart4)
#define UART_3_ISR (isr_uart7)
#define UART_4_ISR (isr_uart5)
#define UART_NUMOF (sizeof(uart_config) / sizeof(uart_config[0]))
/** @} */
/**
* @name I2C configuration
* @{
*/
static const i2c_conf_t i2c_config[] = {
{ /* Shared between Arduino D14/D15 and STMOD+ connector */
.dev = I2C2,
.speed = I2C_SPEED_NORMAL,
.scl_pin = GPIO_PIN(PORT_H, 4),
.sda_pin = GPIO_PIN(PORT_H, 5),
.scl_af = GPIO_AF4,
.sda_af = GPIO_AF4,
.bus = APB1,
.rcc_mask = RCC_APB1ENR_I2C2EN,
.irqn = I2C2_ER_IRQn,
}
};
#define I2C_0_ISR isr_i2c2_er
#define I2C_NUMOF (sizeof(i2c_config) / sizeof(i2c_config[0]))
/** @} */
/**
* @name SPI configuration
*
* @note The spi_divtable is auto-generated from
* `cpu/stm32_common/dist/spi_divtable/spi_divtable.c`
* @{
*/
static const uint8_t spi_divtable[2][5] = {
{ /* for APB1 @ 54000000Hz */
7, /* -> 210937Hz */
6, /* -> 421875Hz */
5, /* -> 843750Hz */
3, /* -> 3375000Hz */
2 /* -> 6750000Hz */
},
{ /* for APB2 @ 108000000Hz */
7, /* -> 421875Hz */
7, /* -> 421875Hz */
6, /* -> 843750Hz */
4, /* -> 3375000Hz */
3 /* -> 6750000Hz */
}
};
static const spi_conf_t spi_config[] = {
{ /* Arduino connector */
.dev = SPI1,
.mosi_pin = GPIO_PIN(PORT_B, 5),
.miso_pin = GPIO_PIN(PORT_B, 4),
.sclk_pin = GPIO_PIN(PORT_A, 5),
.cs_pin = GPIO_UNDEF,
.mosi_af = GPIO_AF5,
.miso_af = GPIO_AF5,
.sclk_af = GPIO_AF5,
.cs_af = GPIO_AF5,
.rccmask = RCC_APB2ENR_SPI1EN,
.apbbus = APB2
},
{ /* PMOD connector */
.dev = SPI2,
.mosi_pin = GPIO_PIN(PORT_I, 3),
.miso_pin = GPIO_PIN(PORT_I, 2),
.sclk_pin = GPIO_PIN(PORT_I, 1),
.cs_pin = GPIO_PIN(PORT_I, 0),
.mosi_af = GPIO_AF5,
.miso_af = GPIO_AF5,
.sclk_af = GPIO_AF5,
.cs_af = GPIO_AF5,
.rccmask = RCC_APB1ENR_SPI2EN,
.apbbus = APB1
},
};
#define SPI_NUMOF (sizeof(spi_config) / sizeof(spi_config[0]))
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* PERIPH_CONF_H */
/** @} */
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