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Altera_Forum
Honored Contributor
11 years agoCyclone 3 does not configure
EP3C10E144 EPCS16 MSEL=010 I designed board using circuit diagram on fig. 9-29. Performed AS programming, verified. Successful. But device is dead. Its nSTATUS is low. Voltage: VCCIO=3.31V, ...
Altera_Forum
Honored Contributor
11 years agoSh.t, it helped. I had small via almost at the center of the pad. I first used 0.5 mm drill to remove solder from it, then used 0.7 to increase its radius, then 2 mm and then 3 mm drill. 3 mm drill is obtuse drill - left from the cracked normal drill. So I drilled up to the pad, removing PCB internals first, then copper layer and mask, up to the white die of the chip. Then filled hole with solder at 440C, and connected with solder to the nearby capacitor's ground output. Ugly, but after first power up board started. I think next time I will do the same - make big via/metallized hole to fill at soldering time.
Pete, thank you so much for the solution.