EclaireXL

The new revision of the boards are with the manufacturer. The PCBs themselves have been made and next they will be working on assembling the main board.

• Remove video DAC and audio ADC power supplies, these did not work anyway so needed a patch wire.
• Verify footprint of main board IO area vs standard, the power supply was outside the IO area by some mm.
• Adjust paddle voltage level potential divider, if the power supply is <5V (many USB chargers are) the paddles did not work. This allows the level to be adjusted.
• Fix black 'éclaireXL' (cosmetic)
• Widen cutout next to pbi from 3.7 to 4.75mm (or more), some devices could not be connected easily.
• Change REF_N pull up from 4k7 to about 2k. Improves PBI stability.
• Header to connect SIO LED to case.
• Power on switch invert up/down on/off to match 800XL!
• Attempt to reduce cross talk on audio ADC

I got a few extra made, so if you hear from anyone who wants to help in the coming months then do let me know.

I've not done much work on improving the core recently. I've mostly been looking at merging the code back to trunk. I started by trying to build the branch for the other boards, so I have the mist back out on my desk.

It was nice to see the EclaireXL get a mention by Joe Decuir (thanks Joe!) in his talk at the PRGE. 18 mins in! By mentioning how much more ram we have it reminds me we really should use some of that 32MB for something...
https://www.youtube.com/watch?v=p1PqdXSHckA