Hi team,
customer use 921/948, found some boards will be flash and LOCK is nor stable. they read 921 reg found the reg 0xC4/C5/C6/C7 are difference,
for noraml display, 0xC4=78; 0xC5=00; 0xC6=00; 0xC7=60
for flash, 0xC4=48; 0xC5=08; 0xC6=00;0xC7=00
we can't find the details about these reg, what are they use for? thanks.
below is flash reg value:
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 18 00 00 fa 80 00 68 40 40 00 00 00 05 00 00 00 ?..??.h@@...?...
10: 00 00 00 10 00 00 fe 5e a1 a5 00 00 00 00 00 00 ...?..?^??......
20: 00 00 25 00 00 00 00 00 00 24 00 a0 00 00 00 00 ..%......$.?....
30: 03 10 00 00 00 00 08 34 00 0a 20 21 00 00 f0 00 ??....?4.? !..?.
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
50: 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
60: 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00 00 ....?...........
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
c0: 00 00 80 00 48 08 00 00 40 00 00 00 00 00 00 00 ..?.H?..@.......
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
f0: 5f 55 42 39 32 31 00 00 00 00 00 00 00 00 00 00 _UB921..........