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ECN CHANGES FROM REV 1 TO REV 2
1. Change C53 to 47pf
2. Reverse power and ground on U8
3. Make sure all jumpers are correctly called out on the schematics the way they are to
be connected on the board.
4. Remove signal SDOUT from JP12 and put signal SDIN in place.
5. Remove USB Maxim power switch and add fuse in place.
6. Correct alignment with GPIO headers.
7. Remove legend and put silkscreen at jumper location
8. Move headers for test0 and test1 over to allow for easier access. Also have test0 to outside
edge of board
9. remove bottom silkscreen
10. Add correct silk for RS232 com ports for Uart1 and Uart2
11. change LED2 to red
12. place DNP 1x2 header for alternative power source.
13. On pin 14 of audio dac remove net resetn and place egpio1 net in place. Place a 1K pull
down on the egpio1 line.
CHANGES FROM 9301 REV 2 TO 9302 BOARD PLATFORM
1. Change the part number of the 9301 to 9302
2. Change the following USB circuitry from Do not populate to populated: C109, C111, F1
C113, C115, C117, R125-128, J8
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
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zxwzq100
2013-03-26
0 回复 举报学习，学习 收起回复
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seven718 2012-07-11
0 回复 举报坑爹啊，请把使用处理器的型号放在标题上，否则下载下来没多大使用意义 收起回复
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