May 11, 2005 #21 B bsiswoyo Member level 5 Joined Jul 27, 2001 Messages 86 Helped 5 Reputation 10 Reaction score 5 Trophy points 1,288 Location INDONESIA Activity points 1,123 Hello, This reason mybe: 1. The wrong connection with RS232 cable Please test your cable from computer COM1/COM2, with the end of cable not connect to MCU but connect with cable DB9 pin 2 and pin 3. And open the hyper terminal with 9600,n,8,1. Type some char from keyboard, you mast see some char echo in hyperterminal dump window. 2. The wrong setting in hyper terminal. Please set the handshaking with "NONE" Setiing. I try it with no any problem. THX
Hello, This reason mybe: 1. The wrong connection with RS232 cable Please test your cable from computer COM1/COM2, with the end of cable not connect to MCU but connect with cable DB9 pin 2 and pin 3. And open the hyper terminal with 9600,n,8,1. Type some char from keyboard, you mast see some char echo in hyperterminal dump window. 2. The wrong setting in hyper terminal. Please set the handshaking with "NONE" Setiing. I try it with no any problem. THX