Uploading to an Arduino Uno via UM232R FTDI Module

Development Tools IDE 1.x
1

I'm trying to upload files to my Arduino Uno via a UM232R USB - Serial UART (http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_UM232R.pdf).

I have to do this because I have the uBlox MAX-7 GPS hooked up to ports 0 and 1 on the Arduino due to timing issues with software serial.

I have it all wired up correctly but I receive the following error when trying to upload blink: "avrdude: stk500_getsync(): not in sync: resp=0x00"

This is how the two boards are currently connected:

  • UM232R pin DB0 to pin 4 on the Arduino
  • UM232R pin DB1 to pin 5 on the Arduino
  • UM232R pin GND to GND on the Arduino

Should the RTS, VCC and RST be connected? Have I missed anything else?

2

Why not just unplug your GPS when you do an upload?