Hello, I am trying to connect mini2440 with an Adruino board using USB Host port. When I plug it in, a popup windows appears asking for the name of the driver. After some google search, I found that I should use FTDI drivers for WinCE. I tried to copy them in \Windows folder but nothing happened. Is there a way to put the driver in my .bin image so that Arduino can be properly recognized ? Is there any other way or idea ? Thanks...
You can connect the Arduino to the mini2440 without going through the USB port. Connect the TTL side of the serial port on the mini2440 to the Arduino's RX and TX pins. Make sure to cross them so that the mini2440 TX connects to the Arduino RX and vice verse. You also need to run a common ground between the two boards.
Hi Jesse, Thanks for the hardware connecting tip. But what about the software part?
Alan, Software on which end, the arduino side or the arm side? The quickest way is to open serial port on arm and arduino, and let them talk. For arm, set the baud rate, data, parity, stop: 9600 (default), 8, N, 1 in order to be compatible with arduino. On the arduino side, program it first and use Serial.begin(9600); Watch out for the timing though. In order to receive your data without missing bytes, you must calculate the timing delay which is needed for slow baud rates. For example, I'll do one at 9600. delay = 2*(data + parity + stop)/baud delay = 2*(8+0+1)/9600 = 1.8mS....so round to 2mS This means that in order for the arduino or arm to correctly parse your data, you will need to sleep or use delay statement.