stillever 发表于 2009-5-5 14:01 1,测下晶振信号，更换晶振，晶振电源 2，tx电源。 3，layout走线 ，敏感信号是否保护，接地情况
Undo
Redo
Table
Removeformat
Autotypeset Left Center Right
FloatLeft FloatRight Orderedlist Unorderedlist
点击图片添加到帖子内容中
Archiver|手机版|小黑屋|52RD我爱研发网 ( 沪ICP备2022007804号-2 )
GMT+8, 2024-7-6 22:47 , Processed in 0.054571 second(s), 16 queries , Gzip On.
Powered by Discuz! X3.5
© 2001-2023 Discuz! Team.
