Hi All, I am using atmega644 with sanguino 1.01 , we met a problem when testing serial1. atmega644 would halt after calling "Serial1.println" several times and there also did't have anything output on USART1. anyone can help us? // the setup routine runs once when you press reset: void setup() { …

ATMEGA644 Serial1 can't work

retrolefty December 28, 2012, 4:38pm 11

No the 644p does have two serial ports, the 644 just one.

Lefty