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STM32H7: fix ADC internal channels

pull/13690/head
jeromecoutant 2020-10-08 10:39:16 +02:00
parent e322870219
commit 2ccf534aaa
3 changed files with 86 additions and 84 deletions
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6
targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H743xI/TARGET_NUCLEO_H743ZI2/PeripheralPins.c
View File

@ -120,9 +120,9 @@ MBED_WEAK const PinMap PinMap_ADC[] = {
};
MBED_WEAK const PinMap PinMap_ADC_Internal[] = {
{ADC_TEMP, ADC_3, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 18, 0)}, // ADC3_INP/INN18
{ADC_VREF, ADC_3, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 19, 0)}, // ADC3_INP/INN19
{ADC_VBAT, ADC_3, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 17, 0)}, // ADC3_INP/INN17
{ADC_TEMP, ADC_3, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 18, 0)}, // ADC3_INP18
{ADC_VREF, ADC_3, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 19, 0)}, // ADC3_INP19
{ADC_VBAT, ADC_3, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 17, 0)}, // ADC3_INP17
{NC, NC, 0}
};

7
targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H747xI/TARGET_DISCO_H747I/PeripheralPins.c
View File

@ -127,11 +127,10 @@ MBED_WEAK const PinMap PinMap_ADC[] = {
{NC, NC, 0}
};
// !!! SECTION TO BE CHECKED WITH DEVICE REFERENCE MANUAL
MBED_WEAK const PinMap PinMap_ADC_Internal[] = {
{ADC_TEMP, ADC_1, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 16, 0)},
{ADC_VREF, ADC_1, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 17, 0)},
{ADC_VBAT, ADC_1, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 18, 0)},
{ADC_TEMP, ADC_3, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 18, 0)}, // ADC3_INP18
{ADC_VREF, ADC_3, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 19, 0)}, // ADC3_INP19
{ADC_VBAT, ADC_3, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 17, 0)}, // ADC3_INP17
{NC, NC, 0}
};

45
targets/TARGET_STM/TARGET_STM32H7/analogin_device.c
View File

@ -174,6 +174,23 @@ uint16_t adc_read(analogin_t *obj)
sConfig.OffsetRightShift = DISABLE;
sConfig.OffsetSignedSaturation = DISABLE;
switch (obj->pin) {
case ADC_TEMP:
sConfig.Channel = ADC_CHANNEL_TEMPSENSOR;
sConfig.SamplingTime = ADC_SAMPLETIME_810CYCLES_5;
break;
case ADC_VREF:
sConfig.Channel = ADC_CHANNEL_VREFINT;
sConfig.SamplingTime = ADC_SAMPLETIME_810CYCLES_5;
break;
case ADC_VBAT:
sConfig.Channel = ADC_CHANNEL_VBAT;
sConfig.SamplingTime = ADC_SAMPLETIME_810CYCLES_5;
break;
default:
switch (obj->channel) {
case 0:
sConfig.Channel = ADC_CHANNEL_0;
@ -228,37 +245,17 @@ uint16_t adc_read(analogin_t *obj)
break;
case 17:
sConfig.Channel = ADC_CHANNEL_17;
#if defined(ADC3)
if ((ADCName)obj->handle.Instance == ADC_3) {
sConfig.Channel = ADC_CHANNEL_VBAT;
sConfig.SamplingTime = ADC_SAMPLETIME_810CYCLES_5;
}
#endif
break;
case 18:
sConfig.Channel = ADC_CHANNEL_18;
#if defined(ADC3)
if ((ADCName)obj->handle.Instance == ADC_3) {
sConfig.Channel = ADC_CHANNEL_TEMPSENSOR;
sConfig.SamplingTime = ADC_SAMPLETIME_810CYCLES_5;
}
#endif
break;
case 19:
sConfig.Channel = ADC_CHANNEL_19;
#if defined(ADC3)
if ((ADCName)obj->handle.Instance == ADC_3) {
sConfig.Channel = ADC_CHANNEL_VREFINT;
sConfig.SamplingTime = ADC_SAMPLETIME_810CYCLES_5;
}
#endif
break;
default:
return 0;
}
}
if (HAL_ADC_ConfigChannel(&obj->handle, &sConfig) != HAL_OK) {
error("HAL_ADC_ConfigChannel issue");
@ -273,7 +270,13 @@ uint16_t adc_read(analogin_t *obj)
if (HAL_ADC_PollForConversion(&obj->handle, 10) == HAL_OK) {
adcValue = (uint16_t)HAL_ADC_GetValue(&obj->handle);
}
LL_ADC_SetCommonPathInternalCh(__LL_ADC_COMMON_INSTANCE((&obj->handle)->Instance), LL_ADC_PATH_INTERNAL_NONE);
if (HAL_ADC_Stop(&obj->handle) != HAL_OK) {
error("HAL_ADC_Stop issue");
}
return adcValue;
}