On Friday 15. January 2016 14.26.41 Luke Kenneth Casson Leighton wrote:
naturally it took a whole lot of shouting at digikey to get them to do a full audit of the stock of ACT8600-QJ601-T PMICs, but i've placed an order for replacements - to be sent directly to me - and will be putting those on when they arrive. also, only 1 out of the 6 PCBs happened to _not_ have solder-bridges under the DDR3 RAM ICs, so i've ordered some replacement DDR3 RAM and will be having a go at putting on 78-pin BGAs with the IRDA solder station. it'll be fun to try. ok.... correction: it'll be fun to succeed.
So, was it Digikey that mixed up the parts or the factory that put the wrong IC on the board?
As for the RAM, I guess that it made for the "bring up" process, as described in that bare-metal Ingenic work, to be slightly more exciting than it should have been. When you're probably only somewhat confident that the code will do the trick, I guess it's frustrating to have defective hardware involved as well.
Anyway, good luck with the printing and soldering!
Paul