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Re: Motorola R100 eeproms or lack of them


 

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Sadly, WA1MIK is a silent key so I doubt the “make-cp” program is available.

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The data in the eeproms on the R100 is very, very susceptible to being corrupted if using too fast of a DOS computer and 30 years ago if you hosed one up the only way to get the station back on the air was to purchase a blank (preformatted) eeprom from Motorola in order to reprogram the radio.? The R100 requires (1) eeprom for transmit data and (1) eeprom for receive data and each eeprom must be initialize with a unique data string that is different depending on if the radio is a PL or DPL model.? I am assuming that is what the make-cp program does.

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Somewhere in my archives I made a copy of the “blank” eeproms that I had to order from Motorola for a customer many years ago but doubt I could find them now.

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Andy / NC4AB ?

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From: [email protected] <[email protected]> On Behalf Of Pienari via groups.io
Sent: Saturday, March 22, 2025 4:07 AM
To: [email protected]
Subject: Re: [repeater-builder] Motorola R100 eeproms or lack of them

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Hi.

I have examined the radio and it appears that the original (codeplug) eeprom has reached the end of its life and needs to be replaced with a 24C01 or 24C02 serial eeprom chip.

WA1MIK has made a program that can write eeprom data to the M100 radio but apparently the program is not publicly available anywhere?.

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