CYW43012(Murat 1LV + uSD-M.2 Adapter) timeout waiting for high throughput clock

[KisooLee]

Dear Infineon,

I'm try to bring up CYW43012 using the "ST32 Connectivity Expansion Pack 1.3.0" on STM32H743I_EVAL board.

In order to provide the same environment as the STM32H747 sample,

the core voltage of the STM32H743 was changed to 1.8V,

and the IP4856CX25 module was removed and wired as shown in the figure below.

But the driver fails with the message "Timeout while waiting for high throughput clock".

Log....

1. [i] ../Core/Src/main.c:653:StartDefaultTask Test application for ivingle BT Setting...
2. Timeout while waiting for high throughput clock
3. SDIO firmware download error, whd_bus_sdio_init failed at 470
4. Interface is not up/NULL and failed in function whd_deinit at line 182
5. [E] ../Core/Src/WiFi_Service.c:89:Start_Wifi_Service Wi-Fi Connection Manager initialization failed! Error code: 0x082e000b

The cause of time-out is presumed to be that the clock CRS value is fixed to 0x40. (Required value: 0x80 (SBSDIO_HT_AVAIL))

Where should I look further to determine the cause of the problem?

Thank you for your help.

[Rakesh_BG · Accepted solution]

Hi,

There might be a chance of no external LPO for clock source or power source issue.

Thanks,

Rakesh B G