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Wi-Fi Combo

FeWe_4081946
New Contributor II

Hi,

I am working with a Sterling-LWB module (CYW4343W) + STM32F411 microcontroller (discovery board), and have been trying to build a simple app with BLE & Wi-Fi functionality at the same time. (SDK Version 6.2.1)

I am running into the same problems as others on recent community threads, GKI_create_task failing, example debug output:

     00:00:02.720000 GKI_create_task thread_evt_queue failed(8), HCISU!

BLE / Wi-Fi each seperately work as expected, for example when i comment out wiced_bt_stack_init(...) or wiced_network_up(...), respectively.

I am looking for any pointers where to start to get this to work: Has any one else had success running BLE & Wi-Fi at the same time on a STM32 MCU ?

Thanks for any help ! Best regards

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1 Solution
Zhengbao_Zhang
Moderator
Moderator

Hello:

If you are using a 26M clock for 43438 with a Sterling-LWB module , please modify :

\43xxx_Wi-Fi\libraries\drivers\bluetooth\firmware\43438A1\26MHz\bt_firmware_controller.c

const char brcm_patch_version[] = "BCM4343A1_001.002.009.0083.0000_Generic_UART_26MHz_wlbga_wiced";

const uint8_t brcm_patchram_format = 0x01;

const unsigned char brcm_patchram_buf[] =

I used another evb name CYW4343WWCD1_EVB,  below demo can run correctly:

demo.ble_introducer-CYW94343WWCD1_EVB download run

View solution in original post

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2 Replies
Zhengbao_Zhang
Moderator
Moderator

Hello:

If you are using a 26M clock for 43438 with a Sterling-LWB module , please modify :

\43xxx_Wi-Fi\libraries\drivers\bluetooth\firmware\43438A1\26MHz\bt_firmware_controller.c

const char brcm_patch_version[] = "BCM4343A1_001.002.009.0083.0000_Generic_UART_26MHz_wlbga_wiced";

const uint8_t brcm_patchram_format = 0x01;

const unsigned char brcm_patchram_buf[] =

I used another evb name CYW4343WWCD1_EVB,  below demo can run correctly:

demo.ble_introducer-CYW94343WWCD1_EVB download run

View solution in original post

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FeWe_4081946
New Contributor II

Thank you!
This works for the example (and my own modified snippets) by moving the ~35kB brcm_patchram_buf from
SRAM to Flash, effectively freeing up RAM
(I am using the 37_4 MHz clock so I modified bt_firmware_controller.c in the corresponding directory)

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