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boards/nucleo-f439zi: add ADC support #20814

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merged 3 commits into from
Aug 16, 2024
Merged

boards/nucleo-f439zi: add ADC support #20814

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7f97c21
boards/nucleo-f439zi: add initial ADC support
krzysztof-cabaj Aug 16, 2024
2d52ebd
cpu/stm32/f4: add ADC support for f439zi
krzysztof-cabaj Aug 16, 2024
03c700f
boards/nucleo-f439zi: add full ADC config and doxygen doc
krzysztof-cabaj Aug 16, 2024
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1 change: 1 addition & 0 deletions boards/nucleo-f439zi/Makefile.features
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ CPU = stm32
CPU_MODEL = stm32f439zi

# Put defined MCU peripherals here (in alphabetical order)
FEATURES_PROVIDED += periph_adc
FEATURES_PROVIDED += periph_dma
FEATURES_PROVIDED += periph_eth
FEATURES_PROVIDED += periph_i2c
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38 changes: 38 additions & 0 deletions boards/nucleo-f439zi/include/periph_conf.h
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Expand Up @@ -198,6 +198,44 @@ static const eth_conf_t eth_config = {
#define ETH_DMA_ISR isr_dma2_stream0
/** @} */

/**
* @name ADC configuration
*
* Note that we do not configure all ADC channels,
* and not in the STM32F439ZI order. Instead, we
* just define 6 ADC channels, for the Nucleo
* Arduino header pins A0-A5 and the internal VBAT channel.
*
* To find appropriate device and channel find in the
* board manual, table showing pin assignments and
* information about ADC - a text similar to ADC[X]_IN[Y],
* where:
* [X] - describes used device - indexed from 0,
* for example ADC12_IN10 is device 0 or device 1,
* [Y] - describes used channel - indexed from 1,
* for example ADC12_IN10 is channel 10
*
* For STM32F439ZI this information is in MCU datasheet,
* Table 10, page 53 or in Nucleo-f439ZI board manual,
* Table 17, page 52.

* @{
*/
static const adc_conf_t adc_config[] = {
{GPIO_PIN(PORT_A, 3), .dev = 2, .chan = 3}, /* ADC123_IN3 */
{GPIO_PIN(PORT_C, 0), .dev = 2, .chan = 10}, /* ADC123_IN10 */
{GPIO_PIN(PORT_C, 3), .dev = 2, .chan = 13}, /* ADC123_IN13 */
{GPIO_PIN(PORT_F, 3), .dev = 2, .chan = 9}, /* ADC3_IN9 */
{GPIO_PIN(PORT_F, 5), .dev = 2, .chan = 15}, /* ADC3_IN15 */
{GPIO_PIN(PORT_F, 10), .dev = 2, .chan = 8}, /* ADC3_IN8 */
{GPIO_UNDEF, .dev = 0, .chan = 18}, /* VBAT */
};

#define VBAT_ADC ADC_LINE(6) /**< VBAT ADC line */

#define ADC_NUMOF ARRAY_SIZE(adc_config)
/** @} */

#ifdef __cplusplus
}
#endif
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4 changes: 2 additions & 2 deletions cpu/stm32/include/periph/f4/periph_cpu.h
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Expand Up @@ -32,8 +32,8 @@ extern "C" {
#define ADC_DEVS (1U)
#elif defined(CPU_LINE_STM32F405xx) || defined(CPU_LINE_STM32F407xx) \
|| defined(CPU_LINE_STM32F415xx) || defined(CPU_LINE_STM32F429xx) \
|| defined(CPU_LINE_STM32F437xx) || defined(CPU_LINE_STM32F446xx) \
|| defined(CPU_LINE_STM32F469xx)
|| defined(CPU_LINE_STM32F439xx) || defined(CPU_LINE_STM32F437xx) \
|| defined(CPU_LINE_STM32F446xx) || defined(CPU_LINE_STM32F469xx)
#define ADC_DEVS (3U)
#endif

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