Macintosh-HW/tashtwenty
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Basket update + more J3 documentation

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demik 2022-04-01 21:08:51 +02:00
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pcb/TashTwenty Tiny/README.md
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@ -34,7 +34,8 @@ Optional
| Case | ABS | 1 | Instrument Case, ABS 2.6x2.6" | HM 1593K(TBU\|GY\|BK) | | Case | ABS | 1 | Instrument Case, ABS 2.6x2.6" | HM 1593K(TBU\|GY\|BK) |
Using sockets is recommended because it will allow you to reclaim the gates and microcontroler if your board is broken. This will also allow you to upgrade the firmware if a future firmware is released. Using sockets is recommended because it will allow you to reclaim the gates and microcontroler if your board is broken. This will also allow you to upgrade the firmware if a future firmware is released.
J3 is reserved for future use, you may want to use a wire for it. (or a resistor leg)
Bridging J3 connects the !ENBL pin on the microcontroller to the !ENBL pin on the 2x20 header, which is what you want for the overwhelming majority of cases where you're connecting the board to an external/secondary floppy drive port that has !ENBL2 in the connector where it should be. It's fine to bridge the two pins with a piece of wire, but if you want this expandability available to you, it'd be better to solder a two-pin header and stick a jumper on it when not in use. The pin closest to the center of the board is the one connected to the microcontroller.
### BOM (adapter board) ### BOM (adapter board)
This is a matching board for TashTwenty. Please use this one to avoid any damage to your computer or TashTwenty. Others adapters boards are wired differently This is a matching board for TashTwenty. Please use this one to avoid any damage to your computer or TashTwenty. Others adapters boards are wired differently
@ -47,7 +48,7 @@ This is a matching board for TashTwenty. Please use this one to avoid any damage
### BOM (external links) ### BOM (external links)
Here is a mouser link (without the case): Here is a mouser link (without the case):
- https://www.mouser.fr/ProjectManager/ProjectDetail.aspx?AccessID=d6eb8cf808 - https://www.mouser.fr/ProjectManager/ProjectDetail.aspx?AccessID=f711e74993
### IDC cable ### IDC cable
You need a cable to connect both boards You need a cable to connect both boards