Unable to program my GPIO image on STM32H750B-DK

[nsingh]

Hi ,

I am not sure but my development board STM32H750B-DK may have some issues and I need some help to find what it may be . 

As per the readme.txt (there is very less literature that I could find on this board) , I could dump the ext_mem boot bin into the Internal flash and I did not face any issue there. I am now trying to flash the IO toggle image onto the QSPI flash present on the development board and I always face the same error. I feel that there maybe a hardware issue on the board but I could be wrong. Your help is highly appreciated. 

I have attached the error image. 

[Pavel A.]

Can you connect to the board with CubeProgrammer and read from the internal flash?

[Shirley.Ye]

if you want to download the image into the QSPI, please make sure you have selected the external flash loader. Are you successfully download the image into the external flash before?

[mƎALLEm]

Hello @nsingh and welcome to the community,

Make sure you uploaded first the external boot firmware from Projects\STM32H750B-DK\Templates\ExtMem_Boot

Then upload the GPIO toggle example from: Projects\STM32H750B-DK\Examples\GPIO\GPIO_IOToggle

[nsingh]

Thanks for your responses. 

I am not sure what is my external loader supposed to be . With the version 2.17 of the programmer , I could not find the external loader for STM32H750B-DK . Which one should I choose. I tried the second one but I still could not flash the image although I could fully erase the external flash.  Also, is it possible to get schematics of this board ?

[mƎALLEm · Accepted solution]

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@nsingh wrote:

I am not sure what is my external loader supposed to be . 

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The NOR Flash (the first one).

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@nsingh wrote:

Also, is it possible to get schematics of this board ?

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The schematics: 

B04 version: https://www.st.com/resource/en/schematic_pack/mb1381-h750xb-b04.pdf

B01 version: https://www.st.com/resource/en/schematic_pack/mb1381-h750xb-b01-schematic.pdf

Hope it helps.

[nsingh]

Can you tell me which schematic version applies to the STM32H750B-DK ? The silkscreen says MB1381B 

[mƎALLEm]

You need to check that in your board :