August 29th, 2018, 16:30
August 29th, 2018, 16:37
August 29th, 2018, 16:40
August 29th, 2018, 16:51
August 29th, 2018, 17:06
August 30th, 2018, 0:08
Offset(h) 00 02 04 06 08 0A 0C 0E
00000000 524F 594C 0100 3000 1001 1800 A63B 5A0E ROYL..0.....¦;Z.
change from 1001 to 0100 ^^^^ ^^^^^^^^^ recalculate checksum
Offset(h) 00 02 04 06 08 0A 0C 0E 10
00000000 524F 594C 0100 3000 1001 1800 A63B 5A0E 3030
00000012 3032 3030 3030 0102 0302 0500 0600 0000 0700
00000024 0800 0000 0900 0000 0A00 0000 6B01 1202 0100 first record
0x16B = number of records ^^^^
00000036 1800 0318 9000 39C3 0500 39C3 0500
........
00001986 1202 6D80
00001998 0B00 0318 0000 33B4 0000 33B4 0000 0002 6E80 last record
^^^^^^^^^
000019AA 2100 0318 0000 3EB4 0000 3EB4 0000 FFFF FFFF (0x12 x 0x16B) + 0x32 = 0x19B8
000019BC FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF
Offset(h) 00 02 04 06 08 0A 0C 0E 10
00000000 524F 594C 0100 3000 0100 1800 0C32 6892 3030
00000012 3032 3030 3030 0102 0302 0500 0600 0000 0700
00000024 0800 0000 0900 0000 0A00 0000 AD01 1202 3500
0x1AD = number of records ^^^^
00000036 0A00 0318 8000 0000 0000 0000 0000
Offset(h) 00 02 04 06 08 0A 0C 0E 10
00000000 524F 594C 0100 3000 1001 1800 E385 1322 3030
00000012 3032 3030 3030 0102 0302 0500 0600 0000 0700
00000024 0800 0000 0900 0000 0A00 0000 0500 1202 3500
0x0005 = number of records ^^^^
00000036 0A00 0318 8000 1800 0000 1800 0000
August 31st, 2018, 16:00
August 31st, 2018, 16:17
sin wrote:I have a kermit which I am practicing on and have a few boards which are bricked.
I tried to locate those resistances which enable the external rom and found out a 22k is missing between E61 and GND.
cant locate anything more... any leads there would help too...
September 2nd, 2018, 15:02
September 2nd, 2018, 15:46
September 3rd, 2018, 12:38
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