Custom PCB, JTAG can't program
Posted: Tue May 06, 2025 2:22 am
I created a custom PCB with the following schematic:
When I plug the device into Windows it recognizes as a USB JTAG and USB Serial Device:
The board has no firmware so it reboots, and pressing BOOT stabilizes it in Windows. Despite it being recognized I cannot connect to it for any reason. Arduino gives me this:
esptool.py gives me this:
I can program off the shelf esp32 c3s that use JTAG mode 0 issue, so I am for the life of me lost. Windows sees it, which means clearly I have D+ and D- routed to IO18 and IO19 in the correct order, so I am just baffled on what is wrong.
When I plug the device into Windows it recognizes as a USB JTAG and USB Serial Device:
The board has no firmware so it reboots, and pressing BOOT stabilizes it in Windows. Despite it being recognized I cannot connect to it for any reason. Arduino gives me this:
esptool.py gives me this:
I can program off the shelf esp32 c3s that use JTAG mode 0 issue, so I am for the life of me lost. Windows sees it, which means clearly I have D+ and D- routed to IO18 and IO19 in the correct order, so I am just baffled on what is wrong.