I have a Colibri T20 Module and Iris Carrier Board. I am doing a Simple UART program. I am using X14 connector on Iris Board. At first after deploying the serial program, it works OK. During 2nd time, after deploying it on board, when I open the serial.exe, it shows “Error Opening Com Port. Could not Open Com Port”.
I restarted the module, deployed it again and it was working then after some doing some changes, and deploying it again. It shows “Error Opening Com Port. Could not Open Com Port”. Restarting the module again solves the problem.
Why it is happening. Why I cannot use the Com port 2nd time. Why do I need to restart the board again.?