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[bsp][mm32f526x] 1.fix adc device; #9978

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Merged
supperthomas merged 1 commit into from
Feb 12, 2025
Merged

[bsp][mm32f526x] 1.fix adc device; #9978

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11 changes: 3 additions & 8 deletions bsp/mm32f526x/drivers/drv_adc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
* Change Logs:
* Date Author Notes
* 2025-01-22 chasel first version
* 2025-02-10 chasel fix adc calibration did not clear flag bits
*/
#include <rtdevice.h>
#include "board.h"
Expand Down Expand Up @@ -94,14 +95,8 @@ static rt_err_t mm32_get_adc_value(struct rt_adc_device *device, rt_int8_t chann

ADC_SoftwareStartConvCmd(adc_x, ENABLE);

rt_uint32_t cnt = 0;
/* @warning There is a bug here, please fix me. */
while(ADC_GetFlagStatus(adc_x, ADC_FLAG_EOS) == 0) {
rt_thread_mdelay(1);
if (cnt++ > 5)
break;
}
ADC_ClearFlag(adc_x, ADC_FLAG_EOS);
while(ADC_GetFlagStatus(adc_x, ADC_FLAG_EOC) == 0);
ADC_ClearFlag(adc_x, ADC_FLAG_EOC);

*value = ADC_GetChannelConvertedValue(adc_x, channel);
return RT_EOK;
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