FlexROM 102: Difference between revisions
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Directions all the same as [[FlexROM_100]], except in addition you have to desolder the system rom from the mainboard and install a DIP28-0.6" socket in it's place. | Directions all the same as [[FlexROM_100]], except in addition you have to desolder the system rom from the mainboard and install a DIP28-0.6" socket in it's place. | ||
== Updated Version == | |||
Now programmable without SOIC28 test clip. | |||
<gallery> | |||
FlexROM_102_1.jpg | |||
FlexROM_102_2.jpg | |||
</gallery> | |||
https://oshpark.com/shared_projects/0L6F4MzR | |||
Revision as of 11:17, 2 November 2020
EEPROM adapter for Tandy Model 102 system rom
With REX main rom support.
Use this version also for late-model 100's that don't have the non-standard main rom pinout. (If you have a Model 100, and the main rm is NOT a LH535618, then use this instead of FlexROM_100)
Use this version also for NEC PC-8201/PC8201A
PCB: OSHPark
BOM: DigiKey
KiCAD schematic and pcb sources: github
Directions all the same as FlexROM_100, except in addition you have to desolder the system rom from the mainboard and install a DIP28-0.6" socket in it's place.
Updated Version
Now programmable without SOIC28 test clip.
