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https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1280337/tm4c129xnczad-why-tm4c129xnczad-rbias-voltage-to-be-0v
尊敬的诸位：
MCU 使用 IC " TM4C129XNCZAD"、 电路图如下所示。
现在，MCU 无法正常工作，
和测量 Rbias 电压(带隙电压基准)为0V。
电路是否有问题？
谢谢。
e2e.ti.com/.../TM4C129XNCZAD_5F00_1013.pdf
