GSM-Forum - View Single Post - nokia lumia, why we need 3 wires to eMMC ?

karwos · 09-18-2012, 11:50

About dejan hack:
It was bit diffrent.
FPGA was attached as a slave (it didn't generated own clock - only captured data at AD0,AD1,ADx, on rising/falling flash clock edges generated by CPU) and when pattern was matched, put ADx high/low.
So x ns job. Here need to FULL capture 2 lines for SO long time.

And remember: in dejan hack target CPU needs to be WORKING (because it patched return jump from PA call on-the-fly), so it needed to execute rest part of code (re-create pm-308,etc..)..

Here we don't need have system running - that's why we can deal with eMMC directly.

09-18-2012, 11:50	#24 (permalink)
karwos No Life Poster Join Date: Feb 2005 Location: Poland Age: 34 Posts: 4,943 Member: 117496 Status: Offline Sonork: 100.83919 Thanks Meter: 22,689	About dejan hack: It was bit diffrent. FPGA was attached as a slave (it didn't generated own clock - only captured data at AD0,AD1,ADx, on rising/falling flash clock edges generated by CPU) and when pattern was matched, put ADx high/low. So x ns job. Here need to FULL capture 2 lines for SO long time. And remember: in dejan hack target CPU needs to be WORKING (because it patched return jump from PA call on-the-fly), so it needed to execute rest part of code (re-create pm-308,etc..).. Here we don't need have system running - that's why we can deal with eMMC directly.