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boards:ecb:backplane-3:start [2017/03/19 07:47]
will [Introduction]
boards:ecb:backplane-3:start [2017/03/19 07:50] (current)
will [Notes on Construction]
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 If you will be using the Interrupt or DMA chains you will need to fit four wire jumpers connecting /BAO to /BAI and /IEO to /IEI as indicated on the PCB. The only Retrobrew Computers board to use these signals is the "Zilog Peripherals"​ board so these jumpers can generally be omitted. If you will be using the Interrupt or DMA chains you will need to fit four wire jumpers connecting /BAO to /BAI and /IEO to /IEI as indicated on the PCB. The only Retrobrew Computers board to use these signals is the "Zilog Peripherals"​ board so these jumpers can generally be omitted.
  
-If you intend to use the board lying flat with the cards standing up, fit four 3M BumpOn rubber domes on the rear to prevent scratching your work surfaces. If you intend to use the board vertically with the ECB cards lying against the desk be aware that many cards will be "​upside-down",​ take care to ensure the electrons don't fall out.+If you intend to use the board lying flat with the cards standing up, fit four 3M BumpOn rubber domes on the rear to prevent scratching your work surfaces. If you intend to use the board vertically with the ECB cards lying against the desk be aware that many cards will be "​upside-down", ​so please ​take care to ensure the electrons don't fall out. 
  
 ===== Photographs ===== ===== Photographs =====
boards/ecb/backplane-3/start.1489924060.txt.gz · Last modified: 2017/03/19 07:47 by will
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