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Contents
1Introduction.............................................................................................................................4
1.1 Features......................................................................................................................... 4
1.2 Hardware Overview........................................................................................................ 4
1.3 Attached goods list......................................................................................................... 5
1.4 Block Diagram................................................................................................................ 5
2Interface Connection..............................................................................................................6
2.1 J1.................................................................................................................................... 6
3Switches and LEDs ................................................................................................................7
3.1 SW1: Debug switch........................................................................................................ 7
3.2 SW2: writer switch.......................................................................................................... 7
3.3 LED1 .............................................................................................................................. 8
3.4 LED2: Power Indication.................................................................................................. 8
3.5 LED3 .............................................................................................................................. 9
4Power Source........................................................................................................................10
5Design Data........................................................................................................................... 11
5.1 Parts Layout..................................................................................................................11
5.2 Circuit Schematics ....................................................................................................... 12
5.3 Body Dimensions......................................................................................................... 14
5.4 Board dimensions ........................................................................................................ 15
5.5 PCB Layout.................................................................................................................. 16
5.5.1 Silk of the top side.....................................................................................................16
5.5.2 Silk of the bottom side...............................................................................................17
5.5.3 PCB Layout: The first layer .......................................................................................18
5.5.4 PCB Layout: The second layer..................................................................................19
5.5.5 PCB Layout: The third layer......................................................................................20
5.5.6 PCB Layout: The fourth layer....................................................................................21
