My board design for Keir Fraser's Greaseweazle.
The differences between this design and the original F7 are:
- PCB 80mm x 50mm, KryoFlux form factor.
- Added stronger buffers for driving 5.25" drives with higher current pull-up resistors.
- Integrated 5V switching regulator, so only a single 12V supply is required for drives needing both rails.
- Choice of full-size or micro USB connector.
- USB ESD (electro-static discharge) protection.
- Connections for external LEDs, for use if fitting the board in an enclosure.
- Jumper link to select write protection by default.
- Jumper link to disconnect WR_GATE for physical hardware level write protection.
This repository has only just been created.
Please check out the Wiki (under construction).