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stm32/adc: Use mp_hal_pin_config() instead of HAL_GPIO_Init(). 

This makes ADCAll work correctly on L4 MCUs.
This commit is contained in:
Damien George 2018-05-02 12:06:23 +10:00
parent 3022947343
commit d4f8414ebd
1 changed files with 4 additions and 21 deletions
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25
ports/stm32/adc.c
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@ -248,21 +248,9 @@ STATIC void adc_init_single(pyb_obj_adc_t *adc_obj) {
}
if (ADC_FIRST_GPIO_CHANNEL <= adc_obj->channel && adc_obj->channel <= ADC_LAST_GPIO_CHANNEL) {
// Channels 0-16 correspond to real pins. Configure the GPIO pin in
// ADC mode.
const pin_obj_t *pin = pin_adc1[adc_obj->channel];
mp_hal_gpio_clock_enable(pin->gpio);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = pin->pin_mask;
#if defined(STM32F4) || defined(STM32F7) || defined(STM32H7)
GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
#elif defined(STM32L4)
GPIO_InitStructure.Mode = GPIO_MODE_ANALOG_ADC_CONTROL;
#else
#error Unsupported processor
#endif
GPIO_InitStructure.Pull = GPIO_NOPULL;
HAL_GPIO_Init(pin->gpio, &GPIO_InitStructure);
// Channels 0-16 correspond to real pins. Configure the GPIO pin in ADC mode.
const pin_obj_t *pin = pin_adc1[adc_obj->channel];
mp_hal_pin_config(pin, MP_HAL_PIN_MODE_ADC, MP_HAL_PIN_PULL_NONE, 0);
}
adcx_init_periph(&adc_obj->handle, ADC_RESOLUTION_12B);
@ -637,12 +625,7 @@ void adc_init_all(pyb_adc_all_obj_t *adc_all, uint32_t resolution, uint32_t en_m
// ADC mode.
const pin_obj_t *pin = pin_adc1[channel];
if (pin) {
mp_hal_gpio_clock_enable(pin->gpio);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = pin->pin_mask;
GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
GPIO_InitStructure.Pull = GPIO_NOPULL;
HAL_GPIO_Init(pin->gpio, &GPIO_InitStructure);
mp_hal_pin_config(pin, MP_HAL_PIN_MODE_ADC, MP_HAL_PIN_PULL_NONE, 0);
}
}
}