Difference between revisions of "Wip4c"

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m (known issues)
m (known issues)
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* connecting PSER1c to the right angle SC port, appears to interfere with MPD comm
 
* connecting PSER1c to the right angle SC port, appears to interfere with MPD comm
 
** need to think about the resistors used to or the signals - or install larger resistors on PSER1c.  The PSER is using 102 (1k) resistors.
 
** need to think about the resistors used to or the signals - or install larger resistors on PSER1c.  The PSER is using 102 (1k) resistors.
 +
**WIP4c also uses 1k on its TX signal - PSER1c should increase to 5k?  but worry that could cause problems w/use at high speed....

Revision as of 04:43, 27 October 2009

Edit

Swifi

ECOs

  1. PFB1, PFB2 land patterns need to be reversed.
  2. PFUP1 should call out a RA header.

assembly status / build variations

  • 1 - 10-24-09 : assembly completed, firmware loaded, seems to work well.
    • local ISP connector populated w/right angle.
    • populated the 9x1mm vertical connectors (PFB1, PFB2) backwards to correct for incorrect land pattern.
  • 2

assembly files

future changes

  • put a 0 ohm shut at the output of the switching power supply - allows testing of the power supply and measurement of current.

known issues

  • connecting PSER1c to the right angle SC port, appears to interfere with MPD comm
    • need to think about the resistors used to or the signals - or install larger resistors on PSER1c. The PSER is using 102 (1k) resistors.
    • WIP4c also uses 1k on its TX signal - PSER1c should increase to 5k? but worry that could cause problems w/use at high speed....