大概是什么原因呢?
2812电路已经在其他的电路中使用过了
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谢谢,已经测量过了,xrs和dgnd 之间是开路的
1.8V电源电压是1.84V,3.3V电源电压是3.24V
相同设计在其他电路上工作都可以
是不是芯片坏了呢?