Friday, January 27, 2012
Looks like usb chip may be miswired
Looks like there may be a problem with the FTDI USB chip's "wiring". I was having trouble getting a simple "hello world" program running so I dug deeper and found this page which clearly shows that the TX/RX pins on the AVR should be opposite of the TX/RX pins on the FT232RL. I think I have this backwards. I will consult with Warren and Neil for the best way to fix this. It could be as simple as soldering two wires from the via's near the FTDI chip to the AVR's pins and then cutting two traces but we must proceed cautiously before performing surgery.