I'm new here in this forum. I'm writing some C codes using SCI to communicate with the computer. Here using MAX232 between the two parties. I probed the pin TxD, and there's some signals sending out from MCU. But in the hyper terminal, there's nothing displayed on the window. Could some one help me? hyper terminal is also new for me. I dun know whether I set the configuration correctly or not. What do I need to pay more attention when doing this, also in the C codes. Thanks a lot!