After a bit of poking, I found what looked to be a textbook quartz crystal resonant curve, but centered at 20 MHz rather than 10. This suggests there’s a divide-by-two in the driver circuit, perhaps to improve the duty cycle to a more perfect 50%. But more importantly, it suggests that neither the crystal itself, nor the electrical connections between it and the package (since I was probing at the package contacts and not the surface of the quartz), were the source of the failure.
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最近我正在考察低成本考勤解决方案，其中Buddy Punch因其专注于小团队而非企业级复杂配置而进入备选名单。如果它真能优化排班管理、带薪休假统计，并生成清晰的薪资核算数据，确实颇具吸引力。但我仍心存顾虑——担心又引入一个表面光鲜却增加管理负担的系统。
——严格规范使用场景，敏感区域"不越界"。涉密人员及关键岗位工作者应安全合规地使用智能设备，避免运动路径标记出敏感地点，危害国家利益。