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boards/nucleo-c031c6: fix ADC config

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krzysztof-cabaj 2024-03-24 19:32:12 +01:00
parent d76fc8d2ed
commit b9b09c00fa
1 changed files with 9 additions and 15 deletions
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24
boards/nucleo-c031c6/include/periph_conf.h
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@ -88,9 +88,9 @@ static const uart_conf_t uart_config[] = {
* @name ADC configuration * @name ADC configuration
* *
* Note that we do not configure all ADC channels, * Note that we do not configure all ADC channels,
* and not in the STM32G071 order. Instead, we * and not in the STM32C031 order. Instead, we
* just define 6 ADC channels, for the Nucleo * just define 6 ADC channels, for the Nucleo
* Arduino header pins A0-A5 and the internal VBAT channel. * Arduino header pins A0-A5.
* *
* To find appropriate device and channel find in the * To find appropriate device and channel find in the
* board manual, table showing pin assignments and * board manual, table showing pin assignments and
@ -100,29 +100,23 @@ static const uart_conf_t uart_config[] = {
* [X] - describes used channel - indexed from 1, * [X] - describes used channel - indexed from 1,
* for example ARD_A5_IN16 is channel 16 * for example ARD_A5_IN16 is channel 16
* *
* For Nucleo-G071RB this information is in board manual, * For Nucleo-C031C6 this information is in board manual,
* Table 12, page 30. * Table 11, page 20.
* *
* VBAT is connected to an internal input and voltage divider * STM32C031C6 do not have internal channel for VBAT, more details provided
* is used, so that only 1/3 of the actual VBAT is measured. This * in the MCU datasheet - section 3.14, page 20.
* allows for a supply voltage higher than the reference voltage.
* *
* For Nucleo-G071RB more information is provided in MCU datasheet,
* in section 3.14.3 - Vbat battery voltage monitoring, page 26.
* @{ * @{
*/ */
static const adc_conf_t adc_config[] = { static const adc_conf_t adc_config[] = {
{ .pin = GPIO_PIN(PORT_A, 0), .dev = 0, .chan = 0 }, /* ARD_A0_IN0 */ { .pin = GPIO_PIN(PORT_A, 0), .dev = 0, .chan = 0 }, /* ARD_A0_IN0 */
{ .pin = GPIO_PIN(PORT_A, 1), .dev = 0, .chan = 1 }, /* ARD_A1_IN1 */ { .pin = GPIO_PIN(PORT_A, 1), .dev = 0, .chan = 1 }, /* ARD_A1_IN1 */
{ .pin = GPIO_PIN(PORT_A, 4), .dev = 0, .chan = 4 }, /* ARD_A2_IN4 */ { .pin = GPIO_PIN(PORT_A, 4), .dev = 0, .chan = 4 }, /* ARD_A2_IN4 */
{ .pin = GPIO_PIN(PORT_B, 1), .dev = 0, .chan = 9 }, /* ARD_A3_IN9 */ { .pin = GPIO_PIN(PORT_B, 1), .dev = 0, .chan = 18 }, /* ARD_A3_IN18 */
{ .pin = GPIO_PIN(PORT_B, 11), .dev = 0, .chan = 15 }, /* ARD_A4_IN15 */ { .pin = GPIO_PIN(PORT_A, 11), .dev = 0, .chan = 11 }, /* ARD_A4_IN11 */
{ .pin = GPIO_PIN(PORT_B, 12), .dev = 0, .chan = 16 }, /* ARD_A5_IN16 */ { .pin = GPIO_PIN(PORT_A, 12), .dev = 0, .chan = 12 }, /* ARD_A5_IN12 */
{ .pin = GPIO_UNDEF, .dev = 0, .chan = 14}, /* VBAT */
}; };
#define VBAT_ADC ADC_LINE(6) /**< VBAT ADC line */
#define ADC_NUMOF ARRAY_SIZE(adc_config) #define ADC_NUMOF ARRAY_SIZE(adc_config)
/** @} */ /** @} */