【求助】stm32+CH372開發(fā)USB,本來(lái)要用外置固件模式,結(jié)果一直沒反應(yīng),就設(shè)置成了內(nèi)置固件模式,設(shè)置成功,CHECK_EXIST命令也沒有問(wèn)題,但是就是不能用,主機(jī)不發(fā)送設(shè)備描述請(qǐng)求包,發(fā)送兩個(gè)獲取配置描述符的包,然后SET_CONFIG,就沒有反應(yīng)了,下面是抓包結(jié)果,誰(shuí)能幫我看看,這到底是怎么回事呢??

30.0 CTL 80 06 00 02 00 00 09 00

30.0 DI ?09 02 2e 00 01 01 00 80 17

30.0 CTL 80 06 00 02 00 00 09 00

30.0 DI ?09 02 2e 00 01 01 00 80 17 09 04 00 00 04 ff 80

?37 00 07 05 82 02 40 00 00 07 05 02 02 40 00 00

?07 05 81 03 08 00 01 07 05 01 02 08 00 00

30.0 CTL ?00 09 01 00 00 00 00 00