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Hi @Paul, thank you for the detailed explanation and guidance. I did verify by measuring the voltage across PTB2, and indeed it is a weak voltage (around 0.1-0.2V) that drops to almost zero when I touch the multimeter leads. And it turns out, the PCB manufacturer had confirmed later on they...

Hi, you are right, PTB2 should ideally be HIGH after the MKL02 starts up. However on my board, it just stays LOW. The push button on my PCB is a normally OPEN switch, so it's not shorting the PTB2 signal to GND : )

Hi, thank you for your time and consideration : ) Yup, PTA3 is connected to DCDC_PSWITCH and AD_B0_11, it is a little tough to spot since the whole schematic is connected by net labels instead of wires. The 3.3V rail starts up up just fine - there doesn't really seem to be any significant...

Hi all, I have designed custom PCB that includes the Teensy 4.1 design on-board, replicated exactly as per the official Teensy 4.1 schematics. Upon receiving the custom boards, I noticed that there is no activity on the IMXRT1062 chip. After extensive debugging, it came down to the fact that...