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AWR2243: TI Demo板晶振起振问题

Part Number: AWR2243


我们自己设计的板子,工作电压正常,芯片复位信号也正常,但2243外接的晶振测量不到信号,怀疑是晶振不起振,也排除了匹配电容不对导致的问题。将TI Demo的天线板单独供电进行测试,晶振同样也不起振。请问AWR2243外接晶振的起振的条件是什么?如何进行晶振信号的测量?