Ds90ub941 chip, how to verify whether the chip works and signal output are normal in the production test stage?
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Ds90ub941 chip, how to verify whether the chip works and signal output are normal in the production test stage?
您好,和941搭配使用的deserializer是哪款? 确定是否正常工作的话,可以用示波器测量下输出是否有波形,显示屏是否能正常显示?
或者按照数据手册中的步骤做自检BIST,看下pass和lock是为高,说明link没问题。
还可以通过读取状态寄存器帮助调试,比如是否cable link detected,DSI error,PCLK是否能detect