We Act Studio 2350 Core Board Upper I/O

[jburrell7]

I have a problem with using the upper I/O pins on the We Act Studio 2350 Core Board in the Arduino IDE. I have selected the "Generic RP2350" option in the IDE. I have been able to use the lower I/O pins to read files from a SD card as well as configure a FPGA. I can flash the LED (on I/O 25) using the standard Arduino pinMode and digitalWrite functions.

When I try to configure I/O 39 as an output pin and toggle it, there is no response from the pin. I have tried the standard pinMode and digitalWrite commands with no luck. I have even tried the different SDK functions. It seems that the gpio_set_dir_***** functions do nothing. When I try them for the LED pin, it will not flash. The gpio_put_masked_n function does flash the LED, however.

I assumed that using a generic 2350 would work, but apparently not. I would appreciate any insights anyone has.

Here are some snippets of code I have tried

pinMode(25, OUTPUT);
pinMode(39, OUTPUT);

// gpio_set_dir(25, true);
// gpio_set_dir_masked(1<<25, 1<<25);
// gpio_set_dir_out_masked(0b00000010000000000000000000000000);
// gpio_set_dir_out_masked64(1<<25);

while(1){
digitalWrite(FPGACMD_CSN, HIGH);
digitalWrite(25, HIGH);
// gpio_put(FPGACMD_CSN, true);
// gpio_put_masked_n(0, 1<<25, 1<<25);
// gpio_put_masked_n(1, 0b00000000000000000000000010000000, 0b00000000000000000000000010000000);

delay(500);
digitalWrite(FPGACMD_CSN, LOW);
digitalWrite(25, LOW);
// gpio_put_masked_n(0, 1<<25, 0);
// gpio_put_masked_n(1, 0b00000000000000000000000010000000, 0);
delay(500);

}

Thanks

[earlephilhower]

I've just verified w/a Pimoroni PGA2350 using the Generic RP2350 that the upper pins work and I can get a tone on pin 45 (one I found easy on my LA) as well as direct digitalWrite waveform.

I would guess you haven't actually set the right chip variant.

Assuming that board really has the B variant with extra GPIO, use the menus to select Tools->Chip Variant->RP2350B. The RP2350A variant can't access those pins and the SDK will throw out those illegal accesses.

[jburrell7]

Earle,
Thank-you for the speedy reply - I didn't expect it to come within minutes.

I tried your suggestion, and it works as advertised.

Again, Thanks