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Jkong.1
Associate II
Feb 17, 2021 8:11 AM UTC
Question

Stm32f407ve ADC+DMA used 1KHz sin is not read evenly when reading the reason

Stm32f407ve used ADC+DMA used 1KHz sin is not read evenly when reading the reason

0693W000008GNiKQAW.jpgExternal 8MHz crystal and UART asynchronous use

0693W000008GNlxQAG.jpg0693W000008GNlJQAW.jpg0693W000008GNl4QAG.jpg0693W000008GNkzQAG.jpg

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2 replies

Tesla DeLorean
Guru
Feb 17, 2021 9:30 AM UTC

You don't look to be pacing with a TIM, assume that you are saturating the USART.​

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Jkong.1
Jkong.1Author
Associate II
Feb 18, 2021 9:27 AM UTC

I did not use the TIM. How to fix if USART is saturated? The code using USART was uploaded as a photo attachment.