About JuanBT

JuanBT · 2023-07-11

Hi everyone. I'm trying to build a data logger using a SD Card using SDMMC. I'm using the STM32-H747i DISCO, STM32 Cube IDE and following the example STM32 - Creating a File System on a SD card from STMicroelectronic youtube channel.The program passe...

JuanBT · 2023-07-11

Hi everyone, I'm working with the STM32H747i-Disco, had several projects working just fine, then I tried to load the example project FatFs_uSD to the board, it didn't work and after that I keep getting the error: Failed to start GBD Server. Any Idea ...

JuanBT · 2023-07-13

Hi, I think the problem is related to the DMA configuration with the SDMMC, also Pirahna and Tesla response added that there could be issues with the cache, read their response. I'll post my solution as soon as I can get it to work

JuanBT · 2023-07-13

Thanks for your response and the link, I'll read the link, I think the problem I've been having is DMA related, I didn't know about the cache issue, I'll look into it. I enabled the DMA on the SDMMC configuration in the IOC file, but I haven't been a...

JuanBT · 2023-07-13

Thank you for your response and suggestions. It manage to make on of the examples for the H747 work. As you said there is no need to use f_mkfs(), but they use a wrapper for the HAL library, and there is no ioc file on the example, so I'm having a li...

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Failed to start GBD server

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