16 Boards manual assembly..

One full panel fresh from oven. FPGA's are soldered, one of the BGA packages has turned itself, the remaining 15 look good!

Discussions

Antti Lukats wrote 08/15/2015 at 06:53

Actually the Programming pins are in the "MAIN" DIP8 pinout, the inner 6 pin are for small "extension board" or extra I/O there are VCC and 5 times LED IO pins in that 6 pin header.

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K.C. Lee wrote 08/14/2015 at 17:28

BTW My way of testing connectivities:
Use multimeter diode test. Positive terminal to Gnd, then use the negative terminal on each of the I/O lines. This forward bias the input protection/parasitic diode for undershoot, so you should see about 0.6V for each of the I/O lines that are connected.

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davedarko wrote 08/14/2015 at 17:08

Why don't you use a more "breadboard" friendly design? or is this fitting a special header for a programmer this way?

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K.C. Lee wrote 08/14/2015 at 17:28

He has 8 pins down in a DIP configuration for breadboard, and 6 pins up for ISP. A bit of a pin for the manufacturing folks but is specifically for breadboard friendliness.

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davedarko wrote 08/14/2015 at 17:52

thanks for clearing it up, Mr. Lee :)

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davedarko wrote 08/14/2015 at 17:53

came here from my feed and didn't check the project before - picture makes it totally obvious. Sry.

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Protos for HaD assembled

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