WICED Studio Bluetooth

[niwa_1296046]

hi ,

We see the reference design flash WP pin is pull up, Could you have patch that cyw20706 gpio control WP.

We want this function for flash occasionally drops firmware in our test.

Thanks a lot

Regards,

[SheetalJ]

Hi niwa_1296046​,

Yes WP pin is pulled high by default.

I didn't understand your query exactly. You want to control the WP using GPIO, is it?

There is no way to control WP pin functionality. You can only access the SPI MOSI, MISO, CLK and CS pins.

[niwa_1296046]

hi sheetalJ,

Yes, we want control WP to get FLASH write protect.

Why do you said There is no way to control WP pin functionality?

Beside the application doing something to FLASH, does the bluetooth lib and protocol code write to FLASH while bluetooth is working?

[SheetalJ · Accepted solution]

Hello,

If you are using a custom board using CYW20706, then you can connect WP pin to a GPIO and use the GPIO to control the pin. However, we think this might create some issue while flashing the device.

If you could let us know your use case and reason to achieve this functionality, we can try to provide you a different solution and comment more specifically.