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Resolved! How to use SD card and eMMC together in STM32H7

안녕.최근에 STM32H753XI를 사용하여 맞춤형 보드를 만들었습니다.보드의 초기 테스트를 위해 각 주변 장치에 대한 테스트를 실행하고 있습니다. 대부분의 경우 잘 작동하지만 SD 및 eMMC 사용에 문제가 있습니다.내 보드에는 SD 슬롯 1개와 eMMC가 포함되어 있습니다.eMMC는 SDMMC1에 연결되고 SD는 SDMMC2에 연결됩니다.그리고 둘 다 FatFS에 연결하여 파일 시스템으로 사용합니다.둘 다 각각 사용할 때 매우 잘 작동합니다...

SDIO_sch.png eMMC_sch.png CORETEX_M7.png NVIC.png

Resolved! Mismatch of DTCM-RAM cache attribute in documentation

In Figure 1 of the reference manual RM0433 for the STM32H743 (and STM32H742, STM32H753, STM32H750) no connection between cache and DTCM-RAM exists.  For all I know this is correct since the DTCM-RAM is not cachable.Table 7 on the other hand shows tha...

dmocom_0-1707908626572.png dmocom_1-1707908975086.png
dmocom by Associate II
  • 1542 Views
  • 4 replies
  • 4 kudos

Resolved! STM32u5a9 hexa-spi PSRAM issue

I am attempting to bring up a custom board using a STM32U5A9 chip. I modeled the board off of the STM32u5a9j-dk dev kit (the one with a circular screen). I've been able to get our LCD screen to work over DSI and touchGFX currently runs fine.Now I am ...

nwm_35 by Associate III
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  • 10 replies
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STM32F103VFT6 99CBK 93 A MYS 99 322

Hi  Since almost 10 years I'm working with STM32F103VF microcontroller with KEIL IDE, and I don't have any problem. But yesterday I received the last batch from my PCB manufacturer, and it installs that reference STM32F103VFT6 as always, but I can't ...

FLast.14 by Associate III
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  • 12 replies
  • 5 kudos

Problem with "HAL_UART_Transmit_IT" function

Hi, I've a problem with function HAL_UART_Transmit_IT.If I call this function with global data array, there isn't a problem, but If I call it with a non global data array, I receive wrong data.This is a sample code:void SendData() { uint8_t s[10]...

SDall.11 by Associate III
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  • 7 replies
  • 1 kudos

Resolved! STM32H723 Flash is filled with 0 after erase and write

HelloI am running a NUCLEO-H723ZG board.User data is saved to internal flash from within the application according to the following procedure: unlock the flash, erase, program. None of the operations return errors. When monitoring the memory, everyth...

Makandra by Associate II
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  • 5 replies
  • 2 kudos