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CC2642R: 如果将CC2642的SDA与地线短路1秒钟,然后恢复正常状态后出现MCU底电流增加约1.5mA,短接SCL与地线则无该现象,可能是什么原因。

Part Number: CC2642R


生产过程中,出现了设备系统电压过低问题,经过排查是由于工人操作问题出现了将IIC总线中SDA与地线短接情况造成了MCU底电流增大了1.5mA,硬件复位芯片后现象消失,再次重复将SDA与地线短接操作可稳定复现电流异常现象,请问是什么原因造成的?