I made a barebones board using a Atmega 328P that I installed the bootloader on using the instructions on Nick Gammon's site. I tried this Atmega on an Arduino Uno and loaded an example sketch; it worked fine. With the Atmega back on the barebones board I'm having trouble loading a sketch; getting the error 'avrdude: stk500_getsync(): not in sync: resp=0x00'. I'm using an ftdi breakout board like thishttp://www.trossenrobotics.com/p/FTDI-Basic-Breakout-5V.aspx?feed=Froogle&gclid=CL-NupmvqrUCFUXf4Aod_B4AEQ
. I have used this breakout successfully in a project that uses an Atmega 328 that I also loaded the bootloader on.
When the USB cable is plugged into my computer, Windows recognizes it as USB Serial Port(COM18) and the transmit and receive leds on the breakout briefly blink. When the upload is attempted, the the TX led on the FTDI breakout blinks 2 or 3 times. I've tried selecting various boards in the IDE and I've also tried adding 1k pullup resistors to the RX and TX pins of the Atmega and I've tried various methods of pressing the reset button on the barebones board. I've also tried switching the TX and RX pins on the barebones board. All the things I've tried were suggested by posters on various forums having the same problem.
Below are images of the barebones board and the schematic.
Any ideas of what else to try? Thanks - Scotty