Sharp PC-E500 to PC link issues

[Helix]

(07-22-2024 02:46 AM)fy789 Wrote:  I think there is a typo on the OPEN statement: "&1A" should be "&H1A" for
hexadecimal.

Hexadecimal numbers are valid without the H letter. This is not mentioned in the manual.

Quote:May I know if you used the VCP or D2xxx driver to enable the port?

With Windows 11, I had nothing to install!
For Windows 7, I don’t remember the driver, but I’ve found in my archives two files named CP210xVCPInstaller_x86.exe and CP210xVCPInstaller_x86.exe, so I suppose it’s VCP.

Quote:BTW, I follow your instruction, but I still get the same "I/O error" after "LOAD COM:"
I tried it on another similar machine, PC-E650, and I got the same error.
The cable may be the issue.
Could you show me how to construct the cable?
Where did you purchase the 15-pin header connector ?

I don’t know this I/O error.
You will find a picture of my cable here, some explanations here, and a more complete PDF document.

The 1.27 mm pitch connectors are not easy to find, and certainly not easy to solder, so I managed to make my own connector with thin cables and some glue.
Another difficulty is to find a genuine FTDI chip, because there are many fake chips that work correctly, but whose signals can’t be inverted.

Quote:HTerm and Device Driver screen captures:
https://ibb.co/6R98gNn
https://ibb.co/D7Khh92

In your Hterm settings, try to enable the RTS box.
example

Also, the port is visible in the "Port (COM & LPT)" line, not the USB line.
example