BMW x5仪表详细研究（带公里数、表号车架号、仪表和车的通信协议）

广州-陶邦 · 发表于 2012-7-4 01:37:23

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下面数据为：BMW X5_6211-6 906 991_SW14，这个数据写入写入6211-6 942 546仪表_公里制式显示_但对比度不正常_ABS灯不会灭（ABS灯汽车行驶以后就正常了，写其他数据是不会灭的）
00000000:08 1B 08 1B 08 1B 08 1B-08 1B 08 1B 08 1B 08 1B ................
00000010:08 1B 08 1B 08 1B 08 1B-08 1B 08 1A 08 1A 08 1A ................
00000020:21 01 16 76 04 03 00 00-0E FA E5 70 FF FF FF FF !..v.......p....
00000030:FF FF FF FF 04 BE C8 37-CE 81 22 C7 81 22 D7 81 .......7..".."..
00000040:23 00 00 00 FF FF FF FF-FF FF EF FF 01 E3 01 E3 #...............
00000050:01 E3 00 02 00 02 00 02-00 00 00 01 3F FE FF FF ............?...
00000060:FF FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF ................
。。。。。。中间全部数据为FF FF 。。。。。。
000001F0:FF FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF ................
00000200:7F 21 0A 82 75 78 30 02-77 12 A3 24 C4 36 E5 49 .!..ux0.w..$.6.I
00000210:12 62 2E 7B 4C 94 69 AD-85 C6 33 14 FF FF 00 06 .b.{L.i...3.....
00000220:8F FF FE 5E FF 2C FE 3C-F6 90 69 91 4C 4D 30 45 ...^.,.<..i.LM0E
表号和车架号
00000230:12 90 11 08 80 51 00 83-57 20 00 00 50 10 41 BB .....Q..W ..P.A.
00000240:17 4C 00 00 00 00 03 36-21 07 06 FF FF FF 09 10 .L.....6!.......
00000250:08 04 80 40 00 41 EF 5B-6F FF 0B 7F DE 8B 2E F0 ...@.A.[o.......
00000260:15 33 10 A4 48 AA 97 55-00 15 1C 90 34 F9 51 74 .3..H..U....4.Qt公里/英里
温度转化
00000270:6D EF 00 15 34 85 6C FE-A1 6E DD EF 10 F0 05 07 m...4.l..n......
00000280:04 02 1C 00 6E 10 C2 A0-4E A5 AE FF 1C 1A 0B 74 ....n...N......t
00000290:1C B2 12 CC EA CC 17 FF-08 45 14 E8 32 0F 67 32 .........E..2.g2
000002A0

1 4B D1 73 3D 78 6A 7D-FE 27 00 05 00 49 00 64 .K.s=xj}.'...I.d
000002B0:01 D1 01 F4 04 7F 04 B0-06 CB 07 08 09 79 09 C4 .............y..油表和小里程数
000002C0:FF FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF ................
000002D0:FF FF FF FF 18 1C 28 30-3B 3F 50 60 68 6A 7F 80 ......(0;?P`hj..
000002E0:90 A0 B0 BB BF C0 C8 D0-E0 E7 EA ED F0 43 47 48 .............CGH
000002F0:73 FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF s...............
00000300:00 08 24 3F 40 44 5B 67-6B 70 80 9A 9D A4 A7 AC ..$?@D[gkp......
00000310:BF CD E8 F5 72 DA 4A FF-FF FF FF FF FF FF FF FF ....r.J.........态速表控制
00000320:FF FF FF FF FF FF F6 06-19 04 32 06 5A 0C FF FF ..........2.Z...
00000330:FF FF FF FF FF FF FF FF-FF FF FF FF 05 60 FF 40 .............`.@背光对比度
00000340:FD 1F 00 00 FF FF FF FF-FF FF FF FF FF FF FF FF ................
00000350:FF FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF ................
00000360:FF FF FF FF FF FF FF FF-FF FF FF FF 00 01 03 5A ...............Z
00000370:07 B9 1F 08 FF FF FF FF-00 01 03 5A 07 B9 1F 08 ...........Z....
00000380:FF FF FF FF 00 01 03 5A-07 F8 1F 08 FF FF FF FF .......Z........
00000390:00 01 03 5A 07 B9 1F 08-FF FF FF FF 00 01 03 5A ...Z...........Z
000003A0:07 B9 1F 08 2B FF FF FF-FF FF FF FF FF FF FF FF ....+...........仪表跟车的通信协议
000003B0:FF FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF ................
000003C0:FF FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF ................
000003D0:FF FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF ................
000003E0:FF FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF ................
000003F0:FF FF FF FF FF FF FF FF-FF FF FF FF FF FF FF FF ................

把240H——26FH修改为下面数据仪表即成英里显示：
00000240:17 4C 00 00 00 00 07 41-25 09 04 FF FF FF 01 10 .L.....6!.......
00000250:08 FF FA 4A 00 82 EF 5B-8F FF 04 7F DE 8B 30 F0 ...@.A.[o.......
00000260:11 33 10 A4 48 AA 97 55-00 15 14 6D 28 C5 41 2E .3..H..U....4.Qt

把320H——33FH修改为下面数据仪表背光对比度即可正常显示：
00000320:FF FF FF FF FF FF F6 06-19 04 32 06 5A 0C 21 91 ..........2.Z...
00000330:35 80 52 78 9A 71 C6 70-DF 69 FF FF FD 60 FF 40 .............`.@