71B MultiMod: MEMORY LOST when changing batteries?
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04-21-2021, 11:38 PM
Post: #18
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RE: 71B MultiMod: MEMORY LOST when changing batteries?
(04-21-2021 09:14 PM)rprosperi Wrote:(04-21-2021 06:28 PM)Dave Frederickson Wrote: Both the CMT and HHP 32k modules have a signal pin that corresponds to the Last-Chip-In-Module bit in the FRAM71 configuration nibble. It's possible to open the modules and reconfigure how the LCIM pins are connected to create RAM ports greater that 32k. There is a bug with the 1BBBB firmware and 64k ports, so be aware. The FRAM71 LCIM bit in the config nibble corresponds to the pin on the memory module used to configure the 3 modules in the HHP module. We discussed this at length before I attempted to replace the RAM chips on your 96k module. Dave |
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