micro-sci-a2-controller/README.md

# micro-sci-a2-controller

This is a clone of the Micro-SCI / Franklin floppy drive controller.

v0.1 is a direct clone, reverse-engineered from a Micro-SCI board.  It was cross-checked with a Franklin-branded board, as well as the (belatedly discovered) official Franklin schematic (included in doc/service_and_schematics.pdf)

v0.2 replaces the 2708 EPROM with a more-common 2716/2732 EPROM.

Firmware images can be built via the Makefile in the firmware subdirectory.  The build framework requires cc65.

![usci](usci.png?raw=true "usci")

## Jumper block

* 1-2 and 3-4: controller test firmware (0x0000)
* 1-2: 16-sector firmware (0x0100)
* 3-4: 13-sector firmware (0x0200)
* empty: firmware "put jumpers here" splash screen (0x0300)
Initial commit 2023-07-09 20:35:18 +00:00			`# micro-sci-a2-controller`

Light documentation. 2023-07-16 02:32:11 +00:00			`This is a clone of the Micro-SCI / Franklin floppy drive controller.`

			`v0.1 is a direct clone, reverse-engineered from a Micro-SCI board. It was cross-checked with a Franklin-branded board, as well as the (belatedly discovered) official Franklin schematic (included in doc/service_and_schematics.pdf)`

v0.2: use a 2716/2732 EPROM. 2023-07-16 02:54:43 +00:00			`v0.2 replaces the 2708 EPROM with a more-common 2716/2732 EPROM.`
Document need for 2708 and availability of 2716/2732 version. 2023-07-16 02:34:23 +00:00
Light documentation. 2023-07-16 02:32:11 +00:00			`Firmware images can be built via the Makefile in the firmware subdirectory. The build framework requires cc65.`

Fix path. 2023-07-09 20:44:04 +00:00			`![usci](usci.png?raw=true "usci")`
Add rendered image. 2023-07-09 20:43:01 +00:00
Document jumpers. 2023-07-09 21:04:26 +00:00			`## Jumper block`

			`* 1-2 and 3-4: controller test firmware (0x0000)`
			`* 1-2: 16-sector firmware (0x0100)`
			`* 3-4: 13-sector firmware (0x0200)`
			`* empty: firmware "put jumpers here" splash screen (0x0300)`