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boards:ecb:4pio:errata [2018/09/16 07:05]
b1ackmai1er
boards:ecb:4pio:errata [2019/03/02 19:49] (current)
b1ackmai1er
Line 1: Line 1:
 ====== R03 Errata ====== ====== R03 Errata ======
 +
 +Trace cuts:
 +
 +  - Cut pin 26 of IC12 (PIO-3) away from the ground plan.
 +  - Cut the trace between C24 and pin 11 of IC12 (PIO-3)
 +  - Cut the trace between C23 and pin 11 of IC9 (PIO-2)
 +  - Cut the ground plane away from the via.
 +  - Cut the ground plane to separate pin 26 of IC8 (PIO-0) and C11.
 +  - Cut the trace from C11 to the via.
 +  - Cut the trace between pin 11 of IC8 (PIO-0) and C8.
 +  - Cut the trace between pin 5 of IC8 (PIO-0) and pin 18 of IC4.
 +  - Cut the trace between pin 6 of IC8 (PIO-0) and pin 17 of IC4.
 +  - Cut the trace between pin 34 of IC9 (PIO-2) and pin 18 of connector P3. (Updated 3-Feb-2019)
 +
 ++5v connection:
 +
 +A. Link pin 26 (IC12 PIO-3) to C12 to C9 to C11 to C8.
 +
 +GND connection:
 +
 +B. Link C12 to C9 to C11 to pin 11 IC8 (PIO-0) to C8.
 +
 +Address selection connection:
 +
 +C. Link pin 5 of IC8 (PIO-0) and pin 17 of IC4.
 +
 +D. Link pin 6 of IC8 (PIO-0) and pin 18 of IC4.
 +
 +{{https://​www.retrobrewcomputers.org/​lib/​plugins/​ckgedit/​fckeditor/​userfiles/​image/​boards/​ecb/​4pio/​errata/​errata-v3.png?​nolink&​800x968}}
  
  
boards/ecb/4pio/errata.1537095937.txt.gz · Last modified: 2018/09/16 07:05 by b1ackmai1er
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