On Monday, January 25, 2016 03:31:02 PM Joachim Strömbergson wrote: > Aloha! > > Really good review by Kent. Eight hours well spent. > > One thing I note is that Kent seems to suggest changing from a QFP to > BGA for the M4-chip. My impression was that we wanted not to use BGA > unless we really had to. > > The FPGA is only available in BGA package so we will need to be able to > handle BGAs. But would we gain anything by switching to BGA for the M4 > too? The pitch is bigger with BGA, but having exposed legs makes QFP > easier to debug.
I'm thinking the same thing - for the Alpha staying with the QFP package essentially gives us 208 "test points". For a future Alpha2, it might very well make sense to move to BGA. /Fredrik
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