I succeed to communicate through SDIO with the module, flash the module without any error but I've the error
/* If your system times out here, it means that the WLAN firmware is not booting.
* Check that your WLAN chip matches the 'wifi_image.c' being built - in GNU toolchain, $(CHIP)
* makefile variable must be correct.
WPRINT_WWD_ERROR(("Timeout while waiting for high throughput clock\n"));
/*@-unreachable@*/ /* Reachable after hitting assert */
The value of the register SDIO_CHIP_CLOCK_CSR is 0x64. One time out of 20 it's working and I've the result 0xC0. (Bit 0x80 is set).
With STM32 Connectivity pack, it's working every times. I can't use STM32 Connectivity pack because I need Wi-Fi Direct (P2P)
I used the STM32 to output the clock for LPO. This clock is always on at frequency 32.768kHz.
The SDIO clock frequency is both 5MHz with WICED and with STM32 Connectivity pack.
I downloaded WICED parameters files from Laird and adapt it to my board. (wifi_nvram_image.h, platform.c/h, platform_config.h). I tested the same set of parameters (wifi_nvram_image.h, binaries files) with STM32 Connectivity pack and it's working.
I check every signals with oscilloscope and I didn't see any major differences.
I use WICED 6.2 because STM32H753 MCU is already added. I adapted files for STM32H733.