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- Changed the uC from a NXP M0 to a SiLab.
- Instead of CDC-ACM this uses a signed windows driver CP210X which is preinstalled in most Linux distributsion. See here for driver information.
- Added pull-down resistors to IRQ5-7 on the PC/104 bus
- Connected PC/104 pin B3 to 5V
- Connected PC/104 12V to VIN
- Changed full-size SD card to OST connector (180 degree reversed from old connector)
- D6 is not populated so USB does not power the entire board.
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