hi i am trying to run adc code with littlevgl graphic but fail below is the code for reference. if anyone done similar please let me know where i am wrong
Blockquote
void MX_ADC1_Init(void)
{
/* USER CODE BEGIN ADC1_Init 0 /
/ USER CODE END ADC1_Init 0 /
ADC_ChannelConfTypeDef sConfig = {0};
ADC_InjectionConfTypeDef sConfigInjected = {0};
/ USER CODE BEGIN ADC1_Init 1 /
//
/ USER CODE END ADC1_Init 1 */
/**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;
hadc1.Init.ContinuousConvMode = ENABLE;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DMAContinuousRequests = DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
Error_Handler();
}
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_0;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
Error_Handler();
}
/**Configures for the selected ADC injected channel its corresponding rank in the sequencer and its sample time
/
sConfigInjected.InjectedChannel = ADC_CHANNEL_0;
sConfigInjected.InjectedRank = ADC_INJECTED_RANK_1;
sConfigInjected.InjectedNbrOfConversion = 1;
sConfigInjected.InjectedSamplingTime = ADC_SAMPLETIME_3CYCLES;
sConfigInjected.ExternalTrigInjecConvEdge = ADC_EXTERNALTRIGINJECCONVEDGE_NONE;
sConfigInjected.ExternalTrigInjecConv = ADC_INJECTED_SOFTWARE_START;
sConfigInjected.AutoInjectedConv = DISABLE;
sConfigInjected.InjectedDiscontinuousConvMode = DISABLE;
sConfigInjected.InjectedOffset = 0;
if (HAL_ADCEx_InjectedConfigChannel(&hadc1, &sConfigInjected) != HAL_OK)
{
Error_Handler();
}
/ USER CODE BEGIN ADC1_Init 2 /
/ USER CODE END ADC1_Init 2 */
}
Blockquote
reading adc
if (OneSecFlag==SET){
OneSecFlag = RESET;
if (HAL_ADC_Start(&hadc1) != HAL_OK)
{
/* Start Conversation Error */
ADCValue=1;
// Error_Handler();
}
if (HAL_ADC_PollForConversion(&hadc1, 1000) != HAL_OK)
{
/* End Of Conversion flag not set on time */
// Error_Handler();
ADCValue=2;
ADCValue = HAL_ADC_GetValue(&hadc1);
}
else
{
/* ADC conversion completed */
/*##-5- Get the converted value of regular channel ########################*/
ADCValue=3;
}
HAL_ADC_Stop(&hadc1);