On Dec 13, 2005, at 3:32 PM, Camm29 wrote:

write "AT00" & numToChar(13) to driver COM1:

One point is that with the same command "AT00" , HYPERTERMINAL works always with wait time < 1 second.

Even though the Hayes-compatible tradition requires a CR to terminate the command line, I have seen some modems that want LF in addition or instead. Could your Hyperterminal settings be set to send a LF with the CR?

Also, check your handshake lines. Make sure you are using the same cable as your Hyperterminal experiment. Then make sure the handshake lines work the same.

BTW, I am not familiar with a digit command, such as 0. That might be something special with your modem or some newfangled thing or something cool I just haven't seen. Or should this be the O command for "Return to On-line State"?

Dar

--
****************************************************
    Dar Scott  dba  Dar Scott Consulting

    "Glory to God in the highest,
    and on earth peace, good will toward men. "
                   -- Host of angels, Luke 2:14
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