XIAO RP2040 w/ILI9341 SPI

[dslocum]

Hi folks,
New here. Trying to get some screen output going but not sure if this is a setup file issue or not. Could use some suggestions.
I modified the UserSetup.h thusly:

// Below section added by DLS 8/16/2023
// For RP2040 - use pin numbers in the form PIN_Dx where Dx is the RP2040 pin designation
//#define TFT_MISO 19
#define TFT_MOSI PIN_D10
#define TFT_SCLK PIN_D8
#define TFT_CS PIN_D7 // Chip select control pin
#define TFT_DC PIN_D6 // Data Command control pin
#define TFT_RST PIN_D5 // Reset pin (could connect to RST pin
#define TOUCH_CS PIN_D4 // Chip select pin (T_CS) of touch screen

Trying to run one of the examples "TFT_METERS.INO" as a first test.
I'm only getting "reasonable" activity on the TFT_CS line (D7) and TFT_SCLK is steady HIGH. All other pins are steady low.
Interestingly, I've tried to manually set a couple of pins HIGH in SETUP using:

void setup(void) {
digitalWrite(TOUCH_CS, HIGH);
while(1);

..but it also stays low.
I've worked with other Arduinos (UNO, etc) before, but this is my first shot at this RP2040.

Could really use another set of eye on this please.

Thanks

Doug

[dslocum]

Sorry about the large bold font. Can't figure out how to get rid of it.

[dslocum]

I figured out the problem. I needed to set-up the RP2040 outputs. Not sure why that would be required but it works now.
--- This helped ----
pinMode(TOUCH_CS, OUTPUT);
pinMode(TFT_RST, OUTPUT);
pinMode(TFT_DC, OUTPUT);
pinMode(TFT_CS, OUTPUT);
pinMode(TFT_SCLK, OUTPUT);
pinMode(TFT_MOSI, OUTPUT);