1.3 KiB
1.3 KiB
Future plans for PowerBook adapter for BlueSCSI
April 2021
https://github.com/xunker/bluescsi_pb/FUTURE_PLANS.md
v1.1 is working well so I don't expect any majour changes for a while.
v1.2 (possible maintenance version)
Plans for a v1.2 (maintenance) may include:
- Jumper to toggle the activity LED
- So you can solder the LED and resistor, but disable it later if you prefer
- Break out power LED
- Provide a power LED (and a jumper toggle) breakout if an external power LED is desired
- Replace J4 & J5 with DIP switches or a single DPDT switch
v2.0 (possible full redesign)
If I continue to develop project in the future, I plan on a full redesign.
- Use termination ICs instead of resistors
- Lower power consumption
- More accurate termination voltage
- Switchable termination resistance (110-ohm or 2.5k-ohm) for short busses
- Attach J1 & J2 via the PCB edge to make it more like how an actual hard drive connects
- Less-expensive Micro SD card slot
- Automatic switching between TERMPWR, MOTORPWR or USB Power
If I want to fork the actual BlueSCSI firmware, I would like to add:
- Separate LEDs for read and write activity
- Read TERMPWR and MOTORPWR voltages and report them on the debugging connector
- LEDs to indicate with SCSI ID is being accessed
- Support OLED debugging display