I just built an arduino, I have made several before, but for some unknown reason I can’t get the FTDI Breakout board to communicate with the chip.
I have verified that both power pins have 5 volts,
the reset pin is connected to 5V via a 10K resister
The 6 pin header is connected as follows
DTR connected to reset via a 1 microF cap
Rx is connected to Tx on the chip
Tx is connected to Rx on the chip
5V is connected to 5V
Gnd is connected to Gnd
What happens is on the FTDI breakout board, rx flashes 3 times and then I get the message
avrdude: stk500_getsync(): not in sync: resp=0x00
If anyone has some idea how to see if the processor is working or not, or any thoughts I would be most appreciative.