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[fix][adc] fix adc read channel value at first

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This commit is contained in:
qqwang 2021-06-25 17:37:14 +08:00
parent f08e171d6b
commit 20ac794338
2 changed files with 17 additions and 16 deletions
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24
drivers/bl702_driver/hal_drv/inc/hal_adc.h
View file

@ -46,18 +46,18 @@ enum adc_index_type {
#define adc_channel_config(dev, list) device_control(dev, DEVICE_CTRL_ADC_CHANNEL_CONFIG, list)
typedef enum {
ADC_CHANNEL0, /* GPIO 0, ADC channel 0 */
ADC_CHANNEL1, /* GPIO 1, ADC channel 1 */
ADC_CHANNEL2, /* GPIO 2, ADC channel 2 */
ADC_CHANNEL3, /* GPIO 3, ADC channel 3 */
ADC_CHANNEL4, /* GPIO 4, ADC channel 4 */
ADC_CHANNEL5, /* GPIO 5, ADC channel 5 */
ADC_CHANNEL6, /* GPIO 6, ADC channel 6 */
ADC_CHANNEL7, /* GPIO 7, ADC channel 7 */
ADC_CHANNEL8, /* GPIO 8, ADC channel 8 */
ADC_CHANNEL9, /* GPIO 9, ADC channel 9 */
ADC_CHANNEL10, /* GPIO 10, ADC channel 10 */
ADC_CHANNEL11, /* GPIO 11, ADC channel 11 */
ADC_CHANNEL0, /* ADC channel 0 */
ADC_CHANNEL1, /* ADC channel 1 */
ADC_CHANNEL2, /* ADC channel 2 */
ADC_CHANNEL3, /* ADC channel 3 */
ADC_CHANNEL4, /* ADC channel 4 */
ADC_CHANNEL5, /* ADC channel 5 */
ADC_CHANNEL6, /* ADC channel 6 */
ADC_CHANNEL7, /* ADC channel 7 */
ADC_CHANNEL8, /* ADC channel 8 */
ADC_CHANNEL9, /* ADC channel 9 */
ADC_CHANNEL10, /* ADC channel 10 */
ADC_CHANNEL11, /* ADC channel 11 */
ADC_CHANNEL_DAC_OUTA, /* DACA, ADC channel 12 */
ADC_CHANNEL_DAC_OUTB, /* DACB, ADC channel 13 */
ADC_CHANNEL_TSEN_P, /* TSenp, ADC channel 14 */

9
drivers/bl702_driver/hal_drv/src/hal_adc.c
View file

@ -47,9 +47,6 @@ int adc_open(struct device *dev, uint16_t oflag)
ADC_CFG_Type adc_cfg = { 0 };
ADC_FIFO_Cfg_Type adc_fifo_cfg = { 0 };
ADC_Disable();
ADC_Reset();
adc_cfg.clkDiv = adc_device->clk_div;
adc_cfg.vref = adc_device->vref;
@ -83,11 +80,15 @@ int adc_open(struct device *dev, uint16_t oflag)
adc_fifo_cfg.fifoThreshold = adc_device->fifo_threshold;
ADC_Disable();
ADC_Enable();
ADC_Reset();
ADC_Init(&adc_cfg);
ADC_FIFO_Cfg(&adc_fifo_cfg);
ADC_Enable();
return 0;
}
/**