Werner Almesberger 245d87e93d Updated the LED. ...

- BOOKSHELF: added LTST-C190KRKT data sheet
- usb.sch: changed R1 to 68 Ohm. C8051F326 VOH at -10 mA is typ.
  VIO-0.8 V = 2.5 V, the LTST-C190KRKT has Vf at 10 mA typ. ~1.8 V
  (fig. 2), so we need to burn about 0.7 V.
- usb.sch: set the value of VR1, VR2, VR3 (add more details later)

2010-08-12 15:50:38 -03:00

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