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boards/sipeed-longan-nano: add periph_adc support

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This commit is contained in:
Gunar Schorcht 2023-01-19 16:52:21 +01:00
parent 47c95cb2a2
commit 15a3b08aa7
4 changed files with 56 additions and 5 deletions
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6
boards/sipeed-longan-nano/Kconfig
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@ -14,6 +14,7 @@ config BOARD_SIPEED_LONGAN_NANO
select CPU_MODEL_GD32VF103CBT6
select BOARD_HAS_HXTAL
select BOARD_HAS_LXTAL
select HAS_PERIPH_ADC
select HAS_PERIPH_I2C
select HAS_PERIPH_PWM
select HAS_PERIPH_SPI
@ -21,4 +22,9 @@ config BOARD_SIPEED_LONGAN_NANO
select HAS_PERIPH_UART
select HAVE_SAUL_GPIO
config SIPEED_LONGAN_NANO_WITH_TFT
bool "Board with TFT display"
help
Indicates that a Sipeed Longan Nano board with TFT display is used.
source "$(RIOTBOARD)/common/gd32v/Kconfig"

1
boards/sipeed-longan-nano/Makefile.features
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@ -1,6 +1,7 @@
CPU_MODEL = gd32vf103cbt6
# Put defined MCU peripherals here (in alphabetical order)
FEATURES_PROVIDED += periph_adc
FEATURES_PROVIDED += periph_i2c
FEATURES_PROVIDED += periph_pwm
FEATURES_PROVIDED += periph_spi

22
boards/sipeed-longan-nano/doc.txt
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@ -31,7 +31,7 @@ on-board components:
| Timers | 5 x 16-bit timer | yes |
| RTC | 1 x 32-bit counter, 20-bit prescaler | yes |
| WDT | 2 x 12-bit counter, 3-bit prescaler | yes |
| ADC | 2 x 12-bit units, 16 channels, 1 Msps | no |
| ADC | 2 x 12-bit units, 16 channels @ 1 Msps | yes |
| DAC | 2 x 12-bit channel | no |
| UART | - | yes |
| USART | 3 | yes |
@ -61,12 +61,19 @@ MCU pins and their configuration in RIOT.
| PA0 | BOOT0 | BTN0 | BOOT | |
| PA1 | | PWM_DEV(0) CH0 | LED1 green | |
| PA2 | | PWM_DEV(0) CH1 | LED2 blue | |
| PA4 | SPI1 CS | SPI_DEV(1) CS | | |
| PA5 | SPI1 SCLK | SPI_DEV(1) SCLK | | |
| PA6 | SPI1 MISO | SPI_DEV(1) MISO | | |
| PA7 | SPI1 MOSI | SPI_DEV(1) MOSI | | |
| PA3 | ADC01_IN3 | ADC_LINE(1) | | |
| PA4 | ADC01_IN4 | ADC_LINE(6) | | N/A if SPI is used |
| PA5 | ADC01_IN5 | ADC_LINE(7) | | N/A if SPI or TFT is used |
| PA6 | ADC01_IN6 | ADC_LINE(8) | | N/A if SPI is used |
| PA7 | ADC01_IN7 | ADC_LINE(9) | | N/A if SPI or TFT is used |
| PA4 | SPI1 CS | SPI_DEV(1) CS | | N/A if ADC_LINE(6) is used |
| PA5 | SPI1 SCLK | SPI_DEV(1) SCLK | | N/A if ADC_LINE(7) is used |
| PA6 | SPI1 MISO | SPI_DEV(1) MISO | | N/A if ADC_LINE(8) is used |
| PA7 | SPI1 MOSI | SPI_DEV(1) MOSI | | N/A if ADC_LINE(9) is used |
| PA9 | USART0 TX | UART_DEV(0) TX | UART TX | |
| PA10 | USART0 RX | UART_DEV(0) RX | UART RX | |
| PB0 | ADC01_IN8 | ADC_LINE(4) | | N/A if TFT is used |
| PB1 | ADC01_IN8 | ADC_LINE(5) | | N/A if TFT is used |
| PB6 | I2C0 SCL | I2C_DEV(0) SCL | | |
| PB7 | I2C0 SDA | I2C_DEV(0) SDA | | |
| PB8 | | PWM_DEV(1) CH0 | | N/A if CAN is used |
@ -78,6 +85,11 @@ MCU pins and their configuration in RIOT.
| PB14 | SPI0 MISO | SPI_DEV(0) MISO | | |
| PB15 | SPI0 MOSI | SPI_DEV(0) MOSI | | |
| PC13 | | | LED0 red | |
| - | ADC01_IN16 | ADC_LINE(2) | | internal Temperature channel |
| - | ADC01_IN17 | ADC_LINE(3) | | internal VFEF channel |
@note Since the availability of `ADC_LINE(4)` to `ADC_LINE(9)` depends on other
peripheral configurations, their index may vary.
## Flashing the Device

32
boards/sipeed-longan-nano/include/periph_conf.h
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@ -45,6 +45,38 @@
extern "C" {
#endif
/**
* @name ADC configuration
* @{
*/
static const adc_conf_t adc_config[] = {
{ .pin = GPIO_PIN(PORT_A, 0), .dev = 0, .chan = 0 },
{ .pin = GPIO_PIN(PORT_A, 3), .dev = 0, .chan = 3 },
/* ADC Temperature channel */
{ .pin = GPIO_UNDEF, .dev = 0, .chan = 16 },
/* ADC VREF channel */
{ .pin = GPIO_UNDEF, .dev = 0, .chan = 17 },
#if !defined(CONFIG_SIPEED_LONGAN_NANO_WITH_TFT)
/* This conflicts with TFT pins if connected. */
{ .pin = GPIO_PIN(PORT_B, 0), .dev = 0, .chan = 8 },
{ .pin = GPIO_PIN(PORT_B, 1), .dev = 0, .chan = 9 },
#endif
#if !defined(MODULE_PERIPH_SPI)
/* This conflicts with the SPI0 controller which is used for TFT if connected */
{ .pin = GPIO_PIN(PORT_A, 4), .dev = 0, .chan = 4 },
#if !defined(CONFIG_SIPEED_LONGAN_NANO_WITH_TFT)
{ .pin = GPIO_PIN(PORT_A, 5), .dev = 0, .chan = 5 },
#endif /* !defined(CONFIG_SIPEED_LONGAN_NANO_WITH_TFT) */
{ .pin = GPIO_PIN(PORT_A, 6), .dev = 0, .chan = 6 },
#if !defined(CONFIG_SIPEED_LONGAN_NANO_WITH_TFT)
{ .pin = GPIO_PIN(PORT_A, 7), .dev = 0, .chan = 7 },
#endif /* !defined(CONFIG_SIPEED_LONGAN_NANO_WITH_TFT) */
#endif
};
#define ADC_NUMOF ARRAY_SIZE(adc_config)
/** @} */
/**
* @name PWM configuration
* @{