Arduino mega(1280) hardware serial communication problem w/jpeg camera

Using Arduino Networking, Protocols, and Devices
4

Paul,

I updated the post(turned smileys off).

That was not what I told you to do.

Does YOUR code really contain:

for(i; i<8; i++)Serial1.print(READ_DATA);

I am using Arduino 1.0.

So, you should be aware that Serial.flush() now blocks until the send buffer is empty. Is that something useful for your code to be doing?

Yes, I did an independent test at 38400 sending / receiving to the mega serial port, seemed to work fine.

This looks an awful lot like a clue, then.