Re: [Gumstix-users] Problem in reading serial port - solved

[Safdar A. <saf...@ib...>]

Dear Dave,
Thanks again for your prompt response. I got my problem solved :D
The problem was not the port name or its baud rate setting ... but the DTR 
signal. Actually, the third party device that I was using required around 12 
volts to send data to the computer. On my host PC, there was no problem ... 
but when I ran the same application on Gumstix, it was not able to send 12 
volt to the device (as DTR high), and that's why my third party device was not 
able to send messages to the serial port of Gumstix.
One of my colleages from Electronics Engineering dept. helped me out to 
resolve this problem. For the moment (as a work around and to be sure about 
the problem), we gave DTR high signal from our host PC, and the rest of the 
wires went into the serial port of Gumstix and it worked perfectly fine. 
Tomorrow, we will think about providing this DTR high signal in a well 
mannered way ....

Take care of you all.
Safdar.