Sharp CE-515P Problem

[toml_12953]

(08-28-2023 10:02 PM)Jeff_Birt Wrote:  Do you get different results if you do an LPRINT of a single line? Have you tried connecting the CE-130T through a null modem cable to a terminal program to confirm it is working correctly?

Yes, every time I do LLIST, I get a different result. If I LPRINT PI, I just get 3 (no decimal point or places.)

I have connected the calculator to my PC running TeraTerm and I can send and receive data OK with the CE-130T. Now, I'm going to try hooking the plotter to a parallel port on my PC to see what happens.

OK, the parallel port test worked fine. The characters printed just as they should. I also hooked the calculator to the PC through the CE-130T and LLISTed to TeraTerm. That also came out perfectly so I know LLIST is sending the correct characters out the serial port and the serial port is responding correctly.

The switch settings on the plotter are:
SW 1, 2 OFF
SW 3, 4, 5, and 6 ON.

My homemade cable is connected like this:

DB25------------DIN 4
6-------------------2
7-------------------3
2-------------------4
DB25 pins 4-5 connected to each other







Now I have to get an adapter to plug the plotter cable into a serial port on the PC and send it a test file from TeraTerm. If that works, I'll hook the calculator to the PC's serial port and send a listing to TeraTerm