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ME05外挂24M外部晶振，晶振起振后波形如下图，幅值约为0.35V，该幅值是否偏低，如果用FXOSC作为PLL时钟源的话，高温状态下是否可能出现整个系统时钟异常 外部晶振电路如下：
MCU内部支持自动增益调节，会维持震荡幅值，幅值不会随温度升高而变小的，MCU内部有反馈电阻，电路图中R335实际可以不接，可以确认实际硬件是否为NC
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帮助没办法联网的电脑使用YCT
帮助改进和优化YT CONFIG TOOL，有机会抽取YTM32B1ME0 EVB哦...
