revC2: Added Mfr name and logo anchors.
by esden 4 years 6 months
revC2: Rerouted and cleaned the USB current limit switch section.
by esden 4 years 6 months
revC2: Swapped Micro USB for USB-C USB 2.0 connector. This is the inital routing pass. This is the status after esden's Twitch stream on Tuesday May 26th 2020.
by esden 4 years 6 months
revC2: Replaced HiZ with P- to better reflect the actual function. The GPIO extenders can set a Pull-Up/-Down resistor or do nothing. That is not the same thing as HiZ. HiZ is only true if the level shifters are also set to input. So P- (Pull nothing or Passive) is a better term.
by esden 4 years 7 months
revC2: Align inline resistors and Sync level shifter. They were not aligned in a vertical line. For aethetic reasons this is now fixed. :)
by esden 4 years 7 months
revC2: Some minor silkscreen legend improvements. Mainly improved readability of the Pull-Up/-Down control block legend. This resulted in some of the passives being moved out of the way to make space for the legend. Also added legend that indicates which level shifter is responsible for which IO signal, including Sync.
by esden 4 years 7 months
revC2: Part ID removed from silkscreen, added logic block legends. All part IDs and values are now meant to be printed on the Fab layer as hardcopy manual assembly and population guide. The space on the silkscreen used for part IDs was partly traded against logical circuit block documentation. This is just the first pass and meant as a stepping stone. The goal is to have the logical functionality be as self descriptive on the silkscreen as possible.
by esden 4 years 7 months
revC2: Spread level shifters to respect courtyards. As part of rerouting also moved half of the power via under the packages. We regained some space thanks to that resulting in slightly cleaner routing.
by esden 4 years 7 months
revC2: Initial routing pass after changing out parts.
by esden 4 years 7 months
revC2: All swapped all remaining missing roundrect footprints. All footprints that are still not roundrect in the official KiCad library moved to local Glasgow footprint library and updated to roundrect pads. Also made a version of the 2x22 pin 1.27mm pitch LVDS connector with alignment pins. This will allow us to have accurate enough position of the connector so we can reliably connect to it in the pogopin tester and to possible daugter boards.
by esden 4 years 7 months
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