Dear All,

I followed the circuit of http://members.aol.com/cpu8052/com1max232dwg.gif



that my micro-controller board still can't communicate with my personal computer. I used a digital multi-meter to check the pin voltages in my serial cable ([Personal Computer (9-pin male)] --> [9-pin female to 25-pin female] --> [Micro-controller Board (25-pin male)]). The pin 14 (25-pin) always had a -10V. Can anyone teach me how to establish a good communication between them? I used the "Terminal.exe" inside the Microsoft Accessory and the communication profile should be 9600-N81. Am I right? Please help me!!!

Regards,
Daisy Mable.