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https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1287001/msp430i2020-vref-input-grounded
如果 VREF 引脚 配置为输入(外部)且 实际施加的电压为"0"、VREF 是否有自动回退路径？
如果您使用内部基准、则建议在 Vref 和 GND 之间连接一个电容器。
