About Rabra.1

Rabra.1 · 2021-10-08

i see in stm32u5xx_hal_dma.c that only normal mode ofr dma is compliant. How can I manage the ciricular mode ?

Rabra.1 · 2020-11-27

Rabra.1 · 2021-10-08

thx , i will try this evening

Rabra.1 · 2021-10-08

yes , i can use it, just to create and understand the strcuture

Rabra.1 · 2021-10-08

HAL_StatusTypeDef ResultHal = HAL_OK; pDMAHandle->Instance = pDMAChannel; pDMAHandle->Init.Request = DMARequest; pDMAHandle->Init.Direction = DMADirection; if (pDMAHandle->Init.Direction == DMA_PERIPH_TO_MEMORY) { pDMAHandle->Init.SrcInc = DMA_...

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I'm working on stm32 U5 on an UART with DMA. It's good if the DMA is in normal mode, but when I want to activate the circular mode on RX dma size, my CPU enters in hard fault .

I curently work on bootloader for stm32 via uart link and manage to update the bootloader, if i use a character by character method via uart+interuption on TX side.But if I work with DMA to send characters the bootloader doesn't recognize command ?

Re: I'm working on stm32 U5 on an UART with DMA. It's good if the DMA is in normal mode, but when I want to activate the circular mode on RX dma size, my CPU enters in hard fault .

Re: I'm working on stm32 U5 on an UART with DMA. It's good if the DMA is in normal mode, but when I want to activate the circular mode on RX dma size, my CPU enters in hard fault .

Re: I'm working on stm32 U5 on an UART with DMA. It's good if the DMA is in normal mode, but when I want to activate the circular mode on RX dma size, my CPU enters in hard fault .