Add commented dump to stc15a docs
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Grigori Goronzy
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@ -89,3 +89,225 @@ FC := some frequency constant, normal: 0xdc, highspeed: 0xb8
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IAP := IAP delay, normal: 0x83, highspeed: 0x81
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Communication dump with notes
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-----------------------------
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Firmware version: 6.7Q
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Magic: F294
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UID: 0A00002802C4EB
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This seems to work differently from what we've seen on STC10/11/12 series with
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firmware 6.2/6.5.
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Get status packet
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-----------------
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mcu2host:
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2014-01-09 11:35:17.917063:
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46 B9 68 00 07 80 00 EF 16
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2014-01-09 11:35:18.056583:
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46 B9 68 00 40 50 02 B0 02 B0 02 AF 02 B0 02 E6
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02 E7 00 00 00 00 67 51 FF F2 94 8C EF 3B F5 58
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34 FF FF FF FF FF FF FF FF FF FF FF 00 00 00 00
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FF FF FF FF FF FF FF FF 58 50 0C 94 21 FF 29 21
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82 16
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host2mcu:
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2014-01-09 11:37:13.000352:
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7F 7F 7F 7F 46 B9 6A 00 07 80 00 F1 16 7F 7F 7F
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7F
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2014-01-09 11:37:13.298358:
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46 B9 6A 00 07 82 00 F3 16
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* MCU first sends an ACK packet (0x80),
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which needs to be replied to with the same ACK (0x80) by the host.
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after that host needs to pulse (send 0x7f until reply) again
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* STC software then adjust the frequency of the RC, after that the handshake
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is done.
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Program hello.bin
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-----------------
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host2mcu:
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FF 7F 7F 7F 7F 46 B9 6A 00 07 80 00 F1 16 7F 7F
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7F 7F 7F 7F
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2014-01-09 11:46:06.334342:
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46 B9 6A 00 0D 50 00 00 36 01 F2 94 02 84 16
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^ Initiate baudrate handshake, like STC12
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46
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B9 6A 00 2A 65 58 50 0C 95 21 FF 2B FF FF 06 06
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58 00 02 00 58 80 02 00 58 80 02 00 58 FF 02 00
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58 00 02 00 58 80 02 00 0A 32 16
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^ This is a new type of packet (0x65), presumably
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for frequency adjustment
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7F 7F 7F 7F 7F
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7F 7F 7F 7F 7F 7F 7F
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46 B9 6A 00 3E 65 58 50 0C
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95 21 FF 2B FF FF 06 0B 58 24 02 00 58 25 02 00
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58 26 02 00 58 27 02 00 58 28 02 00 58 29 02 00
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58 2A 02 00 58 2B 02 00 58 2C 02 00 58 2D 02 00
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58 2E 02 00 0B 51 16
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^ Same new packet again!
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7F 7F 7F 7F 7F 7F 7F 7F 7F
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7F 7F 7F 7F 7F 7F 46 B9 6A 00 12 8E 58 29 0C A1
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64 DC 12 83 20 FF 00 05 2C 16
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^ Straight jumps to setting the new baudrate,
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instead of testing it like in earlier firmware.
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2014-01-09 11:46:07.466357:
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46 B9 6A 00 3B 84 FF 00 02 00 00 10 00 00 00 00
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00 00 00 00 00 00 00 00 80 7F 7E 7D 7C 7B 7A 79
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78 77 76 75 74 73 72 71 70 6F 6E 6D 6C 6B 6A 69
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68 67 66 65 64 63 62 61 60 5F 11 09 16
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^ erase flash
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2014-01-09 11:46:08.322346:
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46 B9 6A 00 4D 00 00 00 00 00 00 40 02 00 08 12
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00 3F 80 FE 75 81 07 12 00 4C E5 82 60 03 02 00
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03 E4 78 FF F6 D8 FD 02 00 03 AE 82 AF 83 8E 04
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8F 05 1E BE FF 01 1F EC 4D 60 0F 7C 90 7D 01 1C
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BC FF 01 1D EC 4D 70 F7 80 E4 22 90 1A 85 16
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46
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B9 6A 00 4D 00 00 00 00 40 00 40 03 E8 12 00 1E
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E5 80 F4 F5 80 80 F3 75 82 00 22 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 08 AC 16
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46 B9
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6A 00 4D 00 00 00 00 80 00 40 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 01 77 16
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46 B9 6A
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00 4D 00 00 00 00 C0 00 40 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 01 B7 16
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46 B9 6A 00
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4D 00 00 00 01 00 00 40 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 F8 16
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46 B9 6A 00 4D
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00 00 00 01 40 00 40 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 01 38 16
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46 B9 6A 00 4D 00
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00 00 01 80 00 40 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 01 78 16
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46 B9 6A 00 4D 00 00
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00 01 C0 00 40 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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00 00 00 00 00 01 B8 16
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^ flash write packets. curiously they use
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a smaller block size, 64 bytes.
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46 B9 6A 00 0D 69 00 00
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36 01 F2 94 02 9D 16
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^ finish packet
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2014-01-09 11:46:09.571449:
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46 B9 6A 00 1A 8D EF FC F7 58 29 FF FF FF FF FF
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FF FF FF FF FF FF FF FF FF 12 66 16
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^ set options packet
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2014-01-09 11:46:09.774383:
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46 B9 6A 00 07 82 00 F3 16
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^ reset packet
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mcu2host:
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2014-01-09 11:49:50.004984:
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46 B9 68 00 07 80 00 EF 16
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^ ACK
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2014-01-09 11:49:50.166675:
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46 B9 68 00 40 50 02 9C 02 9C 02 9C 02 9C 02 E6
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02 E7 00 00 00 00 67 51 FF F2 94 8C EF FC F7 58
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29 FF FF FF FF FF FF FF FF FF FF FF 00 00 00 00
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FF FF FF 12 FF FF FF FF 58 50 0C 95 21 FF 2B 21
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01 16
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^ status packet
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46 B9 68 00 07 8F 00 FE 16
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^ acknowledge handshake
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2014-01-09 11:49:50.566935:
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46 B9 68 00 2A 65 58 50 0C 95 21 FF 2B FF FF 06
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06 58 00 02 4A 58 80 03 45 58 80 03 46 58 FF 04
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3D 58 00 02 4A 58 80 03 45 0B D6 16
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^ reply to first new 0x65 packet
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2014-01-09 11:49:50.941928:
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46 B9 68 00 3E 65 58 50 0C 95 21 FF 2B FF FF 06
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0B 58 24 02 92 58 25 02 94 58 26 02 97 58 27 02
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9A 58 28 02 9A 58 29 02 9C 58 2A 02 9F 58 2B 02
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A2 58 2C 02 A1 58 2D 02 A4 58 2E 02 A8 12 0A 16
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^ reply to second 0x65 packet
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2014-01-09 11:49:51.391860:
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46 B9 68 00 13 84 58 29 0C A1 64 DC 12 83 20 FF
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^ new packet type (0x84)
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00 05 05 26 16
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2014-01-09 11:49:52.253370:
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46 B9 68 00 0E 00 0A 00 00 28 02 C4 EB 02 59 16
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^ acknowledge erase
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2014-01-09 11:49:52.393369:
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46 B9 68 00 08 00 8E 00 FE 16
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2014-01-09 11:49:52.518566:
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46 B9 68 00 08 00 75 00 E5 16
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2014-01-09 11:49:52.643749:
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46 B9 68 00 08 00 00 00 70 16
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2014-01-09 11:49:52.772755:
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46 B9 68 00 08 00 00 00 70 16
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2014-01-09 11:49:52.905131:
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46 B9 68 00 08 00 00 00 70 16
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2014-01-09 11:49:53.047673:
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46 B9 68 00 08 00 00 00 70 16
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2014-01-09 11:49:53.170668:
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46 B9 68 00 08 00 00 00 70 16
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2014-01-09 11:49:53.299131:
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46 B9 68 00 08 00 00 00 70 16
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^ acknowlegde flash writes
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2014-01-09 11:49:53.460551:
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46 B9 68 00 07 8D 00 FC 16
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^ acknowledge finish flash programming
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| last three bytes of UID
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46 B9 68 00 2F 50 02
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C4 EB 58 29 03 FF 67 51 EF FC F7 58 29 FF FF FF
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FF FF FF FF FF FF FF FF FF FF FF 12 FF FF FF FF
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00 00 00 00 00 00 00 1A 36 16
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^ acknowledge set options
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