[HP48] Kermit setup

[davidrg]

(03-23-2023 01:26 PM)Hiwi Wrote:  Now make pysical connection set HP48 to servermode, type K95.exe, connect with ALT-X go back to command console (ALT-X)
Transfer files with send file.xyz

Running k95g.exe will give you a slightly nicer experience - it replaced the console version (k95.exe) back in 2002. The console version is mostly still around for non-interactive use (as part of batch files, etc), or for anyone who really prefers it for whatever reason.

The current Windows version of C-Kermit also includes built-in support for the X/Y/Z-MODEM protocols which you can use via the "set protocol" command: https://kermitproject.org/k95manual/#c8proto (Jyrki Salmi of Online.fi, the original author of the X/Y/Z-MODEM code open-sourced it for the Kermit Project late last year which allowed for its return)

(03-24-2023 07:18 PM)Christoph Giesselink Wrote:  So any value greater 89 produce a packet size of 95 bytes, which it's out of specification.

Another issue, I installed "C-Kermit 10.0 Beta.08/Windows-04, Dec 15 2022, for Windows" om a 2nd PC with the same .ini settings. I'm not able to transfer the same data, I see garbage on the screen of the HP48 in Kermit sever mode after sending the first packet. I haven't investigated the send data so far. So the actual beta version isn't very stable near to useless.

Sounds like you may have found some bugs!

If you haven't already its probably worth reaching out to Frank da Cruz about the packet length issue (fdc@kermitproject.org, or ckw@kermitproject.org will reach both of us). I know he fixed some bugs reported by the Tera Term people in this space back in September but perhaps something was missed. Any Kermit protocol issues in the Windows version likely affect C-Kermit for Linux, Mac, UNIX and VMS also so if there really is an issue it would be good to get it fixed while C-Kermit 10.0 is still in beta.

If you've had a chance to investigate the send-data issue any further it would be good to hear if it turned out to be a bug in the Windows version of C-Kermit, or some serial hardware/configuration issue. This is the first I've heard of issues like this but the range of serial hardware I've got available to test with is limited and unfortunately doesn't include any HP calculators yet.