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wjun.1
wjun.1
Visitor II
December 26, 2021
Question

stm32h7b0vb ADC+dma always Overrun Error

  • December 26, 2021
  • 3 replies
  • 1854 views

0693W00000HpnN9QAJ.pngADC Trigger from Timer,DMA transmit ,and then Always Overrun Error, buffer address @0x30000000.Data can not be transferred to buffer correctly,ADC1 register DR is 0x801 while buffer is 0x01.

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3 replies

TDK
TDK
December 26, 2021

Show your code. How fast is TIM1? Are you transferring half words or bytes?

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Sara BEN HADJ YAHYA
Sara BEN HADJ YAHYA
Technical Moderator
December 30, 2021

Hello @wjun.1​ ,

Thanks for your feedback,

Could you please specify the CubeMX version and if possible, please share your .ioc file.

Regards,

Sara.

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MichaelSweden
MichaelSweden
Associate II
December 30, 2021

Maybe take a look at this (wrong init order): https://community.st.com/s/question/0D53W00001EzCmCSAV/mxdmainit-order-in-the-mainc-file-generated-by-stm32cubemx-how-to-fix

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