i.MX ProcessorsのトピックRe: IMX8MQ USB download https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-USB-download/m-p/1048656#M154377 <HTML><HEAD></HEAD><BODY><P>谢谢你 wigros，就是说给到cpu的USBVBUS都要串一个1K的电阻，不管是host还是device，对吧。我这样加的正确吗？</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/111807i85B24E174D2E63E7/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P></BODY></HTML> Wed, 03 Jun 2020 07:21:13 GMT 小辉哥 2020-06-03T07:21:13Z IMX8MQ USB download https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-USB-download/m-p/1048654#M154375 <HTML><HEAD></HEAD><BODY><P>各位版主你好，</P><P>&nbsp;我现在用IMX8MQ6C处理器设计，如果我只要用USB1 用type-c的接口下载程序，我该如何设计，我现在参考MCIMX8M-EVKB这个删掉了usb电源检测部分，原理图见附件，请帮忙看看是否可行？谢谢了。</P></BODY></HTML> Wed, 03 Jun 2020 03:09:08 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-USB-download/m-p/1048654#M154375 小辉哥 2020-06-03T03:09:08Z Re: IMX8MQ USB download https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-USB-download/m-p/1048655#M154376 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>&nbsp; 如果USB TYPE-C接口进来的总是5V，这个做法理论上可行。</P><P>但是，红圈里的1K电阻，你必须要串联上，不然USB1_VBUS会超过允许电压。</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_7.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/111801iF905E5ED2085BC8A/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_7.png" alt="pastedImage_7.png" /></span></P><P>Weidong</P></BODY></HTML> Wed, 03 Jun 2020 05:57:18 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-USB-download/m-p/1048655#M154376 weidong_sun 2020-06-03T05:57:18Z Re: IMX8MQ USB download https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-USB-download/m-p/1048656#M154377 <HTML><HEAD></HEAD><BODY><P>谢谢你 wigros，就是说给到cpu的USBVBUS都要串一个1K的电阻，不管是host还是device，对吧。我这样加的正确吗？</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/111807i85B24E174D2E63E7/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P></BODY></HTML> Wed, 03 Jun 2020 07:21:13 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-USB-download/m-p/1048656#M154377 小辉哥 2020-06-03T07:21:13Z Re: IMX8MQ USB download https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-USB-download/m-p/1048657#M154378 <HTML><HEAD></HEAD><BODY><P>可以的。</P></BODY></HTML> Wed, 03 Jun 2020 07:30:50 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8MQ-USB-download/m-p/1048657#M154378 weidong_sun 2020-06-03T07:30:50Z