On 2/1/06, Gowri Satish Adimulam <gowri@xxxxxxxxxxx> wrote: > Hi , > Iam try to use minicom as simple com-port, it is connected to embedded > system board via RS 232 cable. > > > in minicom ->serial port setup i have set as > > ttyS3, > baud rate 57600 8n1 which in acordance with embedded system. > Are you sure you are using com4 on your PC? I would think com1 or 2 would be the onboard ports. /dev/ttyS0 or /dev/ttyS1. At the minicom screen try an atz first to reset the modem. If you have the right port you should get back an OK. -- -=/>Thom