About Zahme.2

Zahme.2 · 2022-02-21

Hi all,I have a small test project setup in STM32CubeIDE where an sd-card is interfaced with stm32h743 MCU. The program uses zlib library where it compresses the file from 3.2MB to 26KB. That's good but I cannot find a way to decompress this file on ...

Zahme.2 · 2021-07-27

Hi all,I'm trying to setup a DMA TX UART code using STM32H743VI MCU. The problem I'm facing right now is every time I call HAL_UART_Transmit_DMA function, I get a HAL_DMA_ERROR_TE in my DMA error call-back. The actual line of code is as follows:char ...

Zahme.2 · 2022-02-22

I haven't tried running this program on PC as it was an example guide from zlib website. I think I need to try it on the PC first and see if the logic is right or not. Stack is set to default "0x400"

Zahme.2 · 2021-07-27

I did tried few things like putting __DCB() before calling DMA transfer function, used SCB functions like clean D cache memory by address but no success. Will try setting up a memory allocation in .ld file and see how it behaves.

Zahme.2 · 2021-07-27

It also works fine without the DMA as wellHAL_UART_Transmit_IT(&huart2, (uint8_t *) temp, 4U);

Zahme.2 · 2021-07-27

Hi, Unfortunately that doesn't work either. I have seen some UART example for STM32H743 cube expansion package and they have CPU cache enable. I've tried that as well but no success at all.

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decompressing a file from zlib library

DMA UART transfer error "HAL_DMA_ERROR_TE"

Re: decompressing a file from zlib library

Re: DMA UART transfer error "HAL_DMA_ERROR_TE"

Re: DMA UART transfer error "HAL_DMA_ERROR_TE"

Re: DMA UART transfer error "HAL_DMA_ERROR_TE"