Missing cyw43.h header compiling for Raspberry Pi Pico 2 W

[aadhavans2027]

When compiling a test blink program for the Raspberry Pi Pico 2 W (lifted straight from the pico-examples github), I run into this error:

In file included from /home/aadhavan/.platformio/packages/framework-picosdk/src/rp2_common/pico_status_led/status_led.c:7:
/home/aadhavan/.platformio/packages/framework-picosdk/src/rp2_common/pico_status_led/include/pico/status_led.h:23:10: fatal error: cyw43.h: No such file or directory

This is what my platformio.ini looks like:

platform = https://github.com/maxgerhardt/platform-raspberrypi.git 
board = rpipico2w
framework = picosdk
board_build.core = earlephilhower
debug_tool = cmsis-dap

I have tried adding the path as an IncludePath - this just results in more files not being found, leading me to believe this is a more systemic issue.

[maxgerhardt]

Correct, currently the picosdk.py builder script is incapable of building the network stack. That would be needed to blink the LED on the Pico 2 W because the builtin LED is connected to the WiFi chip.

[aadhavans2027]

Ahh, thanks for the quick response. Is there any progress on that? Alternatively, is there another way to use PlatformIO with picosdk to program the board?

[aadhavans2027]

Follow-up: I am trying to run the following program, which shouldn't include the cyw43.h file at all:

#include <stdio.h>

int main() {
    stdio_init_all();
    printf("Hello\n");
}

But it still fails with the same error.

[maxgerhardt]

Correct, because the pico_status_led component is built by default, which expects this header to exist if CYW43_WL_GPIO_LED_PIN is defined. (see default_common_rp2_components in picosdk.py)

I am adding the logic to detect CYW43 based boards and build the network stack and add the required includes right now, so that this this properly resolved.

[aadhavans2027]

Got it, thanks!

[maxgerhardt]

I've just updated the builder script to be able to build the CYW43 driver and lwIP stack enough so that the also updated picosdk-blink example initializes the WiFi stack enough to blink the LED connected to the CYW43 chip in 5201ced.

I've tested this to work on my Pico W (RP2040) and Pimoroni Pico 2W Plus (RP2350).

Can you pull the latest version of the development platform and try those examples again on your Pico 2W board? Either delete C:\Users\<user>\.platformio\platforms\raspberrypi* or CLI -->

pio pkg update -g -p raspberrypi

[aadhavans2027]

Yes, that works!