About Manon S

Manon S · 2018-12-20

Hi,I implemented a UART communication using the DMA feature on a STM32L4 microcontroller.DMA RxCallback is called on UART Idle line detection interrupt as I d'ont know the length of the incomming frame. The baudrate is 230400 and I receive a frame e...

Manon S · 2019-01-04

Hi again,For others interest, if they have the same issue as I do, I implemented a way to get around the issue.Instead of managing the frames on idle state of the uart, I kind of use multibuffer method of the DMA ("kind of" because it doesn't exist ...

Manon S · 2019-01-04

Hi,Thanks for your answers.Well, yes, I know exactly what I receive on the uart as we developped the transmitter and I checked with an oscilloscope the data. The missing data index was random. DMA is in circular mode, and the buffer is big enough to...

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Missing bytes in UART frame through dma

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