若是下载大文件时，感受时间过久。还不如串口快。spa
但有一个手段能够解决，但设备端不能主发数据，由PC端去拉数据：.net
Bus Hound 6.01 capture on Windows Vista Service Pack 1 (x64). Complements of www.perisoft.net
不间隔报文实现手段数据监控
Device - Device ID (followed by the endpoint for USB devices)
(15) USB 输入设备
(16) HID-compliant device
Length - Total transfer length
Phase - Phase Type
CTL USB control transfer
IN Data in transfer
OUT Data out transfer
USTS USB status
Data - Hex dump of the data transferred
Descr - Description of the phase
Time - Time the phase occurred in hour:minute:second.millisec form
Device Length Phase Data Description Time
------ -------- ----- -------------------------------------------------- ---------------- ------------
15.0 CTL 80 06 00 01 00 00 12 00 GET DESCRIPTOR 09:54:35.382
15.0 18 IN 12 01 00 02 00 00 00 40 14 23 0c 02 00 01 01 02 .......@.#...... 09:54:35.383
03 01 ..
15.0 CTL 80 06 00 02 00 00 09 00 GET DESCRIPTOR 09:54:35.383
15.0 9 IN 09 02 29 00 01 01 00 c0 fa ..)...... 09:54:35.383
15.0 CTL 80 06 00 02 00 00 29 00 GET DESCRIPTOR 09:54:35.383
15.0 41 IN 09 02 29 00 01 01 00 c0 fa 09 04 00 00 02 03 00 ..)............. 09:54:35.383
00 00 09 21 10 01 00 01 22 71 00 07 05 81 03 40 ...!...."q.....@
00 40 07 05 01 03 40 00 0a .@....@..
15.0 CTL 00 09 01 00 00 00 00 00 SET CONFIG 09:54:35.383
15.0 CTL 21 0a 00 00 00 00 00 00 SET IDLE 09:54:35.384
15.0 USTS c0000004 stall pid 09:54:35.384
15.0 CTL 81 06 00 22 00 00 b1 00 GET DESCRIPTOR 09:54:35.384
15.0 113 IN 06 00 ff 09 01 a1 01 85 01 95 08 75 08 26 ff 00 ...........u.&.. 09:54:35.384
15 00 09 01 91 02 85 02 95 01 75 08 26 ff 00 15 ..........u.&...
00 09 01 91 02 85 03 95 02 75 08 26 ff 00 15 00 .........u.&....
09 01 91 02 85 04 95 01 75 08 26 ff 00 15 00 09 ........u.&.....
01 81 02 85 05 95 32 75 08 26 ff 00 15 00 09 01 ......2u.&......
81 02 85 06 95 fe 75 08 26 ff 00 15 00 09 01 b1 ......u.&.......
02 85 07 95 32 75 08 26 ff 00 15 00 09 01 91 02 ....2u.&........
c0 .
15.0 CTL 21 09 06 03 00 00 ff 00 SET REPORT 09:54:42.876
15.0 255 OUT 06 02 00 03 00 01 00 01 03 00 00 00 00 00 00 00 ................ 09:54:42.876
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
15.0 CTL a1 01 06 03 00 00 ff 00 GET REPORT 09:54:42.892
15.0 23 IN 06 02 00 11 00 00 00 4d 54 33 2d 52 4b 33 33 20 .......MT3-RK33 09:54:42.892
56 31 2e 30 33 74 03 V1.03t.
15.0 CTL 21 09 06 03 00 00 ff 00 SET REPORT 09:54:42.923
15.0 255 OUT 06 02 00 04 00 09 00 14 1d 03 00 00 00 00 00 00 ................ 09:54:42.924
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
15.0 CTL a1 01 06 03 00 00 ff 00 GET REPORT 09:54:42.924
15.0 USTS c0000004 stall pid 09:54:42.927
15.0 CTL a1 01 06 03 00 00 ff 00 GET REPORT 09:54:42.927
15.0 29 IN 06 02 00 17 00 00 00 4d 54 33 2d 4d 44 31 32 31 .......MT3-MD121 09:54:42.927
32 32 33 30 30 30 30 31 00 00 00 3e 03 22300001...>.
15.0 CTL 21 09 06 03 00 00 ff 00 SET REPORT 09:54:55.855
15.0 255 OUT 06 02 00 04 c1 40 00 00 81 03 00 00 00 00 00 00 .....@.......... 09:54:55.856
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
15.0 CTL a1 01 06 03 00 00 ff 00 GET REPORT 09:54:55.856
15.0 USTS c0000004 stall pid 09:54:55.863
15.0 CTL a1 01 06 03 00 00 ff 00 GET REPORT 09:54:55.864
15.0 9 IN 06 02 00 03 00 16 00 16 03 ......... 09:54:55.864
orm