Teeprom: Difference between revisions
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<gallery> | <gallery> | ||
Teeprom.jpg | |||
Teeprom_6.jpg | Teeprom_6.jpg | ||
Teeprom_7.jpg | Teeprom_7.jpg | ||
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Teeprom_10.jpg | Teeprom_10.jpg | ||
</gallery> | </gallery> | ||
[https://photos.app.goo.gl/ | [https://photos.app.goo.gl/aicpPgKjzFoJweb8A More Pictures] | ||
== Parts == | == Parts == | ||
PCB: https:// | PCB & Carrier: https://www.pcbway.com/project/shareproject/Teeprom___Writable_option_rom_for_TRS_80_Model_100__102__200.html<br> | ||
BOM: https://www.digikey.com/short/ | BOM: https://www.digikey.com/short/thq5fbr0<br> | ||
Carrier: [ | <!-- Carrier: [https://shop.jawstec.com/3d-printed-molex-78802-pcb-carrier_p641.php JawsTec] [https://www.sculpteo.com/en/print/molex78802_pcb_28-13/Bw4x3yG6 Sculpteo] --> | ||
== Programming == | == Programming == | ||
To write the eeprom, you need: | To write the eeprom, you need: | ||
* Programmer such as [http://autoelectric.cn/EN/TL866_main.html TL866] | * Programmer such as [http://autoelectric.cn/EN/TL866_main.html TL866] | ||
* SOIC-28 test clip such as [https://duckduckgo.com/?q=pomona+5437&ia=web Pomona 5437] | * SOIC-28 test clip such as [https://duckduckgo.com/?q=pomona+5437&ia=web Pomona 5437], [https://duckduckgo.com/?q="923660-28" AP/3M 923660-28], [https://duckduckgo.com/?q="923665-28" AP/3M 923665-28] | ||
* [https://www.digikey.com/product-detail/en/adam-tech/ICS-328-T/2057-ICS-328-T-ND/9832859 dip-28 socket] | * [https://www.digikey.com/product-detail/en/adam-tech/ICS-328-T/2057-ICS-328-T-ND/9832859 dip-28 socket] | ||
* 28 [https://www.amazon.com/dp/B06XRV92ZB/ jumper wires] with male pins on one end and female Dupont style sockets on the other end. | * 28 [https://www.amazon.com/dp/B06XRV92ZB/ jumper wires] with male pins on one end and female Dupont style sockets on the other end. | ||
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Remove the Teeprom from the Model 100/102/200<br> | Remove the Teeprom from the Model 100/102/200<br> | ||
Clip the test clip onto the chip on the Teeprom module. | Clip the test clip onto the chip on the Teeprom module. | ||
== 4ROM == | |||
4-bank module that fits in the socket and holds 4 rom images. | |||
https://github.com/bkw777/Teeprom/blob/master/4ROM.md | |||
<gallery> | |||
4ROM_10.jpg | |||
4ROM_11.jpg | |||
</gallery> | |||
== Sources == | == Sources == | ||
PCB: http://github.com/bkw777/Teeprom<br> | |||
Carrier: http://github.com/bkw777/Molex78802_Module | |||
The PCB should have ENIG copper finish for gold plated edge contacts. | |||
The carrier should be printed with SLS or MJF. | |||
Latest revision as of 02:50, 26 February 2026
Parts
PCB & Carrier: https://www.pcbway.com/project/shareproject/Teeprom___Writable_option_rom_for_TRS_80_Model_100__102__200.html
BOM: https://www.digikey.com/short/thq5fbr0
Programming
To write the eeprom, you need:
- Programmer such as TL866
- SOIC-28 test clip such as Pomona 5437, AP/3M 923660-28, AP/3M 923665-28
- dip-28 socket
- 28 jumper wires with male pins on one end and female Dupont style sockets on the other end.
- rom image files
Put the female ends of the wires onto the test clip.
Put the male ends of the wires into the dip28 socket.
Put the dip28 socket into the programmer.
Remove the Teeprom from the Model 100/102/200
Clip the test clip onto the chip on the Teeprom module.
4ROM
4-bank module that fits in the socket and holds 4 rom images.
https://github.com/bkw777/Teeprom/blob/master/4ROM.md
Sources
PCB: http://github.com/bkw777/Teeprom
Carrier: http://github.com/bkw777/Molex78802_Module
The PCB should have ENIG copper finish for gold plated edge contacts.
The carrier should be printed with SLS or MJF.