用STM32做USB键盘，原本是想按一下显示一个1.但是我按下去屏幕一直跳出“\”。相当于键盘按着“\”不动。下面是用USB HOUND抓取的数据，请教如何取消这种连按状态。USB报告描述符是复制圈圈键盘作品的。
29.0 CTL 80 06 00 01 00 00 12 00 GET DESCRIPTOR 3.7sc 1.1.0
29.0 IN 12 01 00 02 00 00 00 40 83 04 10 57 00 02 01 02 .......@...W.... 236us 1.2.0
03 01 .. 1.2.16
29.0 CTL 80 06 00 02 00 00 09 00 GET DESCRIPTOR 341us 2.1.0
29.0 IN 09 02 22 00 01 01 00 e0 32 ..".....2 268us 2.2.0
29.0 CTL 80 06 00 02 00 00 22 00 GET DESCRIPTOR 323us 3.1.0
29.0 IN 09 02 22 00 01 01 00 e0 32 09 04 00 00 01 03 01 ..".....2....... 305us 3.2.0
01 00 09 21 00 01 00 01 22 2d 00 07 05 81 03 08 ...!...."-...... 3.2.16
00 20 . 3.2.32
29.0 CTL 00 09 01 00 00 00 00 00 SET CONFIG 330us 4.1.0
29.0 CTL 21 0a 00 00 00 00 00 00 SET IDLE 622us 5.1.0
29.0 USTS c0000004 stall pid 175us 5.2.0
29.0 CTL 81 06 00 22 00 00 6d 00 GET DESCRIPTOR 339us 6.1.0
29.0 IN 05 01 09 06 a1 01 05 07 19 e0 29 e7 15 00 25 01 ..........)...%. 288us 6.2.0
75 01 95 08 81 02 95 01 75 08 81 03 95 06 75 08 u.......u.....u. 6.2.16
15 00 25 ff 05 07 19 00 29 65 81 00 c0 ..%.....)e... 6.2.32
29.1 IN 00 00 31 00 00 00 00 00 ..1..... 2.0sc 7.1.0
30 IN 07 00 2b 00 00 00 00 00 00 00 00 00 ..+......... 30us 8.1.0(139)
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