Question about MODEM I/O

[aviators99]

Hi,
New to the emulator and this discussion group. I'm trying to do some MODEM I/O. I have successfully tried everything within Kermit, and that works fine. I can do input and output between the IMSAI and a remote host on a distinct port. I am trying to do some stuff programmatically and having some difficulty. For now, I'm doing it in XYBASIC. I successfully connect to the host/port with no problem. When I read from 24h, I can see the modem's response saying CONNECTED, etc. From then on, if I out to 24h, I do see the bytes showing up on the remote end. However, when I try to read back from 24h I keep getting the same byte back, over and over again.

Thanks for any help.
Ron

[aviators99]

Also, I should mention that after I try to read from BASIC, I go back to Kermit, and all of the stuff comes out there.

[aviators99]

This is solved, thanks to an exchange with Dave. 25h must be polled before reading from 24h. Check bit 1 to see if a character is ready to be read.