SDIO firmware download error by using the STM32H734+CYW4343W

[Yoshi]

We have developed original board by using STM32H743 and CYW4343W.

In the whd_bus_sdio_protocol.c, we got error this kind of error. So how do we solve this problem.

Note: We are using the "STM32 Connectivity Expansion Pack1.1.0( https://github.com/Infineon/stm32-connectivity )

[Rakesh_BG · Accepted solution]

Hi @Yoshi ,

Are you using external LPO?

This error is typically observed when external LPO is missing.

Thanks,

Rakesh B G

[Yoshi]

Hi, @Rakesh_BG 

Thank you for your reply. I will check LPO usage.

BTW. Yesterday, I just changed delay parameter in the whd_bus_sdio_protocol.c(function name : whd_bus_sdio_download_firmware )

In the original source code delay 1 ms. and I changed 10 ms. then Error did not occured.