Pser2h

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assembly files

• SCH
• TOP side
• BOT side
• Gerbers
• BOM

known issues

• EEPROM lacks pull up on EECS
• Need 10K resistor pack for RE2 (has 1k)

ECO

• cut trace to RE2, pin3
• run wire from RE2.3 to UE1.1

serial numbers

• 1 - assembled 10-15-09; tested both isolated serial port; ISP not programed.
  • has 1 ISP connector and uses ISP switch
  • after addition of EEPROM - doesn't enumerate
• 2 - assembled 10-16-09;
  • has 2 ISP connectors.
  • after addition of EEPROM - doesn't enumerate

assembly mods

• RE2 will be 10k not 1k
• 4.7uF replaced w/10uF