STM32F0 ADC多通道单次转换，最后一个通道的EOC不置位
STM32F030 ADC采样序列中包括IN0,IN1,IN2三个通道，采用单次转换模式，软件触发启动，但是发现采样转换到最后一个通道IN2时，EOC不会置位，程序进入超时状态。有哪位朋友碰到过此问题？主要代码如下：uint16_tADCValue[3;
void MX_ADC_Init(void)
{
ADC_ChannelConfTypeDef sConfig;
hadc.Instance = ADC1;
hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
hadc.Init.Resolution = ADC_RESOLUTION_12B;
hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;
hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc.Init.LowPowerAutoWait = DISABLE;
hadc.Init.LowPowerAutoPowerOff = DISABLE;
hadc.Init.ContinuousConvMode = DISABLE;
hadc.Init.DiscontinuousConvMode = DISABLE;
hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc.Init.DMAContinuousRequests = DISABLE;
hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED;
if (HAL_ADC_Init(&hadc) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
sConfig.Channel = ADC_CHANNEL_0;
sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
sConfig.SamplingTime = ADC_SAMPLETIME_7CYCLES_5;
if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
sConfig.Channel = ADC_CHANNEL_1;
if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
sConfig.Channel = ADC_CHANNEL_2;
if (HAL_ADC_ConfigChannel(&hadc, &sConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
void Get_ADCVal(void)
{
uint8_ti;
if (HAL_ADC_Start(&hadc) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
for ( i=0;i<3;i++ )
{
if (HAL_ADC_PollForConversion(&hadc, 20) != HAL_OK)
_Error_Handler(__FILE__, __LINE__); // ********** 当 i 递增到2时，程序执行死在这里！！！！！！！！！！
else
ADCValue[i = HAL_ADC_GetValue(&hadc);
}
// HAL_ADC_Stop(&hadc);
}
看起来ADC的转换模式是单次的，所以第二次的转换是没有启动，也就没有EOC。 把ADC的启动放到FOR 循环里就正确了
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