Hi everyone! Good morning!
I haven’t forgotten this topic, just I have taken time to test all the options that I have found thanks to the group.
Sadly, I haven’t been able to use the serial port to send data to the Toshiba successfully. I was able to send vterm.com as a dbg file and compiled in the Toshiba file, but any attempt with any other bigger file has been unsuccessful.
By some reason, the Toshiba serial port isn’t able to establish a stable communication with my usb serial adapter, I have several suspects:
- A possible difference in the Toshiba hardware, that isn’t compatible with vterm application.
- A possible problem in the implementation of RS232 communication on the serial adapter.
I have discarded possible problems with the null modem cable, and I have tried several baud rates combinations on a loopback configuration and it seems that it’s fine.
The serial adapter it’s based on Prolific chip, so this could be a problem. The chip is know by their problems, so it’s a possible culprit.
On another hand, I have tried to find technical details about Toshiba serial port, and accord to the minimal information that I found it should be IBM PC compatible. The sad part it’s that the information isn’t enough to be sure that it’s full compatible or not.
Finally, I have been able to find a usb floppy drive able to read and write single density floppies, with it I have been able to test the notebook with several applications and games
I’m planning to get another USB serial adapter but based on the FTDI chip, and I will test the options covered here again. I hope to obtain different results, anyway I will share them with the group!
Thanks to all for your help!