Custom RP2040 PCB not showing after upload

Official Hardware Nano Family Nano RP2040 Connect
1

Hello,

I finished assembling my RP2040 based PCB and plugged it into my computer - nothing, even when I pressed the reboot button. Then I shorted the No-Fit resistor between QSPI_SS and 3V3 then RPI-RP2 (E:) shows up. At first I dragged and dropped MicroPython - Python for microcontrollers into the USB storage device and then it disconnected and disappeared. It did not show up as a com afterwards.

Next, I connected the board (again shorting the QSPI_SS and 3V3) to get the USB to show up and uploaded this arduino sketch:

void setup() {
  Serial.begin(115200);
}

void loop() {
  Serial.println("I Work!");
}

The arduino IDE gave no errors and said:

Done Uploading
Sketch uses 89107 bytes (4%) of program storage space. Maximum is 2097152 bytes.
Global variables use 42784 bytes (15%) of dynamic memory, leaving 227552 bytes for local variables. Maximum is 270336 bytes.
.

Finally, I tried to upload a blink sketch to one of the header pins on my pcb (Pin 22) and using a voltmeter there was no sign of the code running.

Has anyone had this problem before and how would I fix it?

Thanks in advance.

2

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