Here's what I have done thus far. I have made a cable that connects that D+ (Green) and D- (White) wires to their respective cables on the board. I am not using the +5 and GND wires as the custom board is being powered elsewhere. The chip is only being powered with a 3.3 volt supply. I plugged in the USB cable and powered on the board. The computer did not detect anything. I pulled pin 9 to ground to put the chip in Download mode, still nothing. Looking through the hardware documentation, it did mention this:
https://docs.espressif.com/projects/esp ... t.html#usbNote that USB_D+ will have level output, so please add a pull-up resistor to determine the initial high-level output voltage.
So, I added a 10k pull-up resistor on the D+ pin, still nothing. Throughout all these steps, I made sure that everything was plugged in (USB pins, and pin 9) before powering on the board.
Are there any extra steps that I could try? Is there something that I am missing or doing wrong?