About pk84

pk84 · 2023-10-04

Hello,As mentioned in the title, I am trying to output a simple sinusoidal audio over I2S.It works only the first time with DMA and IT, but not afterwards.In blocking mode it works fine. See the code below.Does somebody maybe know why?? (It doesn't m...

pk84 · 2023-09-25

Hello,I'm currently trying to set up an SD-card driver for the STM32H750. I've following code right at initialization.The driver code is from:https://controllerstech.com/interface-sd-card-with-sdio-in-stm32/Unfortunately, it doesn't work reliably. Wi...

pk84 · 2023-03-07

Hello,I always get a Data mismatch error... what can I do?I already tried to erase external QSPI flash, but without success :-(...Thank you

pk84 · 2023-03-06

Hello,I'm using LTDC_Display_1Layer example.In case I use "LTDC_PIXEL_FORMAT_RGB888" in which format should I store a picture in the framebuffer?I did following, but the pictures is not displayed correctly. 24bit value of a pixel is stored in one 32b...

pk84 · 2023-02-24

Hello,I'm using stm32CubeIDE V1.9.I wanted create new project example based on "LTDC_Display_1Layer".Before - I deleted all folder related to this project (because I created it already and did something into but wanted start again from a fresh proje...

pk84 · 2023-10-12

Ok thank you for the explanation, but I cannot see where I tell different buffer lengths to the system, see screenshot below of my HAL function:

pk84 · 2023-10-06

ok good, just one question, which buffer do you mean with following?@LCE wrote:- the buffer is completely filled (maybe the sine values don't fill the buffer completely)

pk84 · 2023-10-05

Ok thank you for these hints, and do you have any idea about following question?:In Interrupt Mode it only works when I call Transmit two times (as code below), then I can also call later a Transmit.But if I call Transmit only once, then, later it is...

pk84 · 2023-10-05

in Interrupt Mode it only works when I call Transmit two times (as code below), then I can also call later a Transmit.But if I call Transmit only once, then, later it is not possible to do a Transmit again (I don't have a sound then).I not understand...

pk84 · 2023-10-05

Ah, great! I changed the mode to CIRCULAR, and now it is continuously sending a sinusoidal sound with a short pause in between. 1) How can I stop to sending this sound now?2) And how can I avoid this pause between?Thank you

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STM32H750 with I2S non blocking-mode (DMA or IT) works only once

STM32H750, SD-Card does not work reliable, D-Cache?

Data mismatch found at address 0x90003AAE (byte = 0xDB instead of 0xBB)

LTDC_PIXEL_FORMAT_RGB888, framebuffer format?

Fail to perform local copy (create new example project)

Re: STM32H750 with I2S non blocking-mode (DMA or IT) works only once

Re: STM32H750 with I2S non blocking-mode (DMA or IT) works only once

Re: STM32H750 with I2S non blocking-mode (DMA or IT) works only once

Re: STM32H750 with I2S non blocking-mode (DMA or IT) works only once

Re: STM32H750 with I2S non blocking-mode (DMA or IT) works only once