R100 Serial Port Setup Parameters

[PWCPhoto]

I just purchased a programming cable from RFGuys to program my R100 repeaters and so far no joy. It tells me that that data is invalid and beeps twice.

I have tried this on 2 R100 repeaters that I have and the same problem. I am using an old Epson laptop running a V20 chip so it is nice and slow so hopefully that is not the problem.

Does anyone know what the serial port parameters are for the R100 as I have to set them up in the BIOS on the laptop? Baud rate, data bits, stop bits and parity etc... Hopefully it is just configured wrong. One of the repeaters was brand new in the box, I had purchased it from Motorola back in the 80s or early 90s for a project when they first came out and never got to use it, so it sat in storage for all these years. The other one was used for 6 months when it was new and has also sat in storage all these years. They are the 5015B version.

Any help would be greatly appreciated.

Phil

[PWCPhoto]

Hmmm no help yet. Is there anyone in the Los Angeles area that has the ability to program this radio or the EEPROM outside of the radio if it is corrupted? Or program a replacement EEPROM?

Thanks

Phil

[DJP126]

Does anyone know what the serial port parameters are for the R100 as I have to set them up in the BIOS on the laptop? Baud rate, data bits, stop bits and parity etc... Hopefully it is just configured wrong.

Any help would be greatly appreciated.

Phil

I don't know about the R100, but early programming at Motorola was almost always 9600 baud, 8 bits, 1 stop bit, no parity. Can't hurt to try. Also, are they EEPROMS or EPROMS?

[kcbooboo]

The programming software needs full control of the serial port, including the various handshaking lines. The software sets the baud rate, data bits, and parity, but also toggles the handshaking lines that are used for output. If your computer has a way to set the lines always high or always low, or gives you no control at all, this could be a problem. Depending on how RF Guys made their programming adapter, it may also depend on those handshaking lines for power.

Dave: The ICs in the R100 station radios are 128-byte (1k bit) serial EEPROMs.

Bob M.