2023-11-11T08:36:19Z
FluxBB
https://whycan.com/viewtopic.php?id=3878
我也遇到了同样的问题。。。]]>
https://whycan.com/profile.php?id=8210
2023-11-11T08:36:19Z
https://whycan.com/viewtopic.php?pid=92962#p92962
pans203 说:我的板子的现象跟你的一样,请问你的解决了吗?
]]>
https://whycan.com/profile.php?id=7942
2021-12-24T05:05:44Z
https://whycan.com/viewtopic.php?pid=72541#p72541
129脚EGND,芯片底部的,必须可靠接地; (焊盘大,散热快,易虚焊)]]>
https://whycan.com/profile.php?id=2190
2020-03-22T03:45:21Z
https://whycan.com/viewtopic.php?pid=36189#p36189
等大佬路过会诊吧? ]]>
https://whycan.com/profile.php?id=3
2020-03-16T02:30:57Z
https://whycan.com/viewtopic.php?pid=35833#p35833
109电压也是3.37
d+线长25.03mm
d-线长23.047mm]]>
https://whycan.com/profile.php?id=2000
2020-03-16T02:27:31Z
https://whycan.com/viewtopic.php?pid=35831#p35831
109 脚 Vusb 电压如何? USB D+/D- 有没有接错/短路/开路 ? USB线有没有太长,要不要飞线试一试?]]>
https://whycan.com/profile.php?id=3
2020-03-16T02:23:51Z
https://whycan.com/viewtopic.php?pid=35830#p35830
97 VRTC-IO 1.589V
98 VRTC 3.37V
99 RESET 3.37V]]>
https://whycan.com/profile.php?id=2000
2020-03-16T02:14:17Z
https://whycan.com/viewtopic.php?pid=35828#p35828
有的,3.37V]]>
https://whycan.com/profile.php?id=2000
2020-03-16T02:10:22Z
https://whycan.com/viewtopic.php?pid=35827#p35827
98脚 Vrtc 有电压吗?]]>
https://whycan.com/profile.php?id=3
2020-03-16T01:59:47Z
https://whycan.com/viewtopic.php?pid=35824#p35824
自己画了一块板子,参考荔枝派的设计,去掉了液晶屏,摄像头和模拟部分(保留了供电部分),上电测试3.3,3.0,1.8,1.2电压都ok的,24M晶振有波形,5v供电电源电流只有22ma,插usb没有反应。请问下应该怎么处理?
]]>
https://whycan.com/profile.php?id=2000
2020-03-16T01:53:56Z
https://whycan.com/viewtopic.php?pid=35822#p35822