I built the top side of my bityExpress-B board last night. I had to stack some PCBs under my stencil frames to account for the components that I loaded previously on the back side of the board. The paste worked well everywhere except U4 (the on-board programmer's CPLD). Since I can bypass the programmer I went ahead and loaded the components and baked it.
All of the solder joints looked good except... you guessed it... U4. It had at least 3 shorts. I cleared those and tested. So far the power supplies all work and I can program the CPLD and the FTDI FT245R. I stopped when the on-board programmer failed to recognize the FPGA. I'm betting that is related to solder issues on U4. I'll try a bit longer to resolve U4's issues and if I fail I'll just bypass it and use an external programmer to check the FPGA.
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| Ready for paste |
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| Paste looks good (except for U4) |
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| Bakin' |
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