Skip to main content
Explorer
July 13, 2024
Solved

STM32CubeMX project created ADC LL lib problem

  • July 13, 2024
  • 1 reply
  • 1155 views

I had used STM32CubeMX generated ADC with STM32H750VBT6:
ADC_REG_InitStruct.TriggerSource = LL_ADC_REG_TRIG_EXT_TIM1_CH1;
ADC_REG_InitStruct.SequencerLength = LL_ADC_REG_SEQ_SCAN_ENABLE_2RANKS;
ADC_REG_InitStruct.SequencerDiscont = ENABLE;
ADC_REG_InitStruct.ContinuousMode = LL_ADC_REG_CONV_SINGLE;
ADC_REG_InitStruct.Overrun = LL_ADC_REG_OVR_DATA_PRESERVED;
LL_ADC_REG_Init(ADC1, &ADC_REG_InitStruct);
->but ADC not working.
My modify:
ADC_REG_InitStruct.TriggerSource = LL_ADC_REG_TRIG_EXT_TIM1_CH1;
ADC_REG_InitStruct.SequencerLength = LL_ADC_REG_SEQ_SCAN_ENABLE_2RANKS;
ADC_REG_InitStruct.SequencerDiscont = LL_ADC_REG_SEQ_DISCONT_2RANKS;
ADC_REG_InitStruct.ContinuousMode = LL_ADC_REG_CONV_SINGLE;
ADC_REG_InitStruct.DataTransferMode = LL_ADC_REG_DMA_TRANSFER_UNLIMITED;
ADC_REG_InitStruct.Overrun = LL_ADC_REG_OVR_DATA_PRESERVED;
LL_ADC_REG_Init(ADC1, &ADC_REG_InitStruct);
-> Issue had'nt fixed.

I change to HAL lib with ADC1


hadc1.Instance = ADC1;
hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;
hadc1.Init.EOCSelection = ADC_EOC_SEQ_CONV;
hadc1.Init.LowPowerAutoWait = DISABLE;
hadc1.Init.ContinuousConvMode = DISABLE;
hadc1.Init.NbrOfConversion = 2;
hadc1.Init.DiscontinuousConvMode = ENABLE;
hadc1.Init.NbrOfDiscConversion = 2;
hadc1.Init.ExternalTrigConv = ADC_EXTERNALTRIG_T1_CC1;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;
hadc1.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DMA_CIRCULAR;
hadc1.Init.Overrun = ADC_OVR_DATA_PRESERVED;
hadc1.Init.LeftBitShift = ADC_LEFTBITSHIFT_NONE;
hadc1.Init.OversamplingMode = DISABLE;
hadc1.Init.Oversampling.Ratio = 1;

it working, issue is fixed
Thanks.

This topic has been closed for replies.
Best answer by Imen.D

Hello @SangMV ,

Thank you for sharing the update and the solution to your issue which was in your ADC configuration!

1 reply

Imen.DBest answer
ST Technical Moderator
July 15, 2024

Hello @SangMV ,

Thank you for sharing the update and the solution to your issue which was in your ADC configuration!

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Thanks