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project_notes:localtalk_bbb_cape

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project_notes:localtalk_bbb_cape [2018/02/11 16:10] – created dougproject_notes:localtalk_bbb_cape [2018/02/11 17:04] (current) doug
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 ==== Revision History ==== ==== Revision History ====
  
-  * 1.0+  * 0.1
       * Initial version       * Initial version
-  * 2.0 (not yet ordered)+  * 0.2 (not yet ordered)
       * Switched to 10K pulldown instead of 100K pulldown for ISP command handler entry pin on LPC MCU. 100K wasn't enough.       * Switched to 10K pulldown instead of 100K pulldown for ISP command handler entry pin on LPC MCU. 100K wasn't enough.
       * Added 10K pulldown to keep LPC MCU in reset until BBB explicitly asks it to start.       * Added 10K pulldown to keep LPC MCU in reset until BBB explicitly asks it to start.
       * Fixed mistake where I left A/!B channel selection pin floating on the SCC.       * Fixed mistake where I left A/!B channel selection pin floating on the SCC.
-  * Current known issues: +      * The RX pins of the transceiver were wired to the TX pins of the Mini-Din-8 pinout, and vice-versa. This means a straight-through Mini-Din-8 cable would have been needed to connect between a Mac and the cape, which is not typicalTypical printer cables are crossover. This also means that LocalTalk transceivers connected directly to the cape would have had RX and TX backwards.
-      * The RX pins of the transceiver are wired to the TX pins of the Mini-Din-8 pinout, and vice-versa. I should fix this before ordering revision 2.0.+
  
  
project_notes/localtalk_bbb_cape.1518394235.txt.gz · Last modified: 2018/02/11 16:10 by doug