I am currently making a board that has both an Arduino and a Parallax Propeller. When working with Arduino I usually use a standard serial port adapter for programming, but when working with a Prop I use one of these
It is basically an FTDI that has a circuit to pull DTR low, which is the Propellers reset line. On the product page it says compatible with 3.3v and 5v micros. Basically on my board it would be nice to use a switch to select which chip I want to program, but have only one programming plug for both Arduino and Propeller, which accepts a Prop Plug.
I tried tying the prop plug Tx>RX, Rx>TX, VSS>GRND, RES>RES, to my Arduino. When I tried to upload a sketch I got an out of sync error. Im assuming this has something to do with the reset line. I was thinking Arduino may use CTS instead of DTR for reset, im not sure but there are no options I can find in the Arduino IDE to change the reset Pin. Is it possible to use DTR as the reset line? I would really like to get this prop plug programming an Arduino!