i2099 发表于 2016-6-16 13:21:32

ST的MCU-STM32F105

各位：
       想向你咨询一下关于ST的MCU-STM32F105的问题：       想用自带DFU更新程序。USB识别一直是unknow device 该怎么解决？                                       非常感谢！       MCU-DFU相关原理图为：1.USB端口：
http://mm.263.com/wm2e/mail/mailOperate/mailOperateAction_mailInnerFileDownloadImg.do?mailCodeType=img&emailIdentity=005762248009c6eb@00f2@3f319bc75101bd80&folderId=2&usr=shaoxue.liu@upf-electric.com&sid=OXM2aDNhNW85eDl1N2U0LjBs&innercid=innerImg146604807531982392
2.USB-MCU连接：http://mm.263.com/wm2e/mail/mailOperate/mailOperateAction_mailInnerFileDownloadImg.do?mailCodeType=img&emailIdentity=005762248009c6eb@00f2@3f319bc75101bd80&folderId=2&usr=shaoxue.liu@upf-electric.com&sid=OXM2aDNhNW85eDl1N2U0LjBs&innercid=innerImg146604829391748118
3.USB BOOT选择：http://mm.263.com/wm2e/mail/mailOperate/mailOperateAction_mailInnerFileDownloadImg.do?mailCodeType=img&emailIdentity=005762248009c6eb@00f2@3f319bc75101bd80&folderId=2&usr=shaoxue.liu@upf-electric.com&sid=OXM2aDNhNW85eDl1N2U0LjBs&innercid=innerImg146604836238785081http://mm.263.com/wm2e/mail/mailOperate/mailOperateAction_mailInnerFileDownloadImg.do?mailCodeType=img&emailIdentity=005762248009c6eb@00f2@3f319bc75101bd80&folderId=2&usr=shaoxue.liu@upf-electric.com&sid=OXM2aDNhNW85eDl1N2U0LjBs&innercid=innerImg146604836244639301

eefishing 发表于 2016-6-20 14:43:40

图挂了。。
页: [1]
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