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AFE4400驱动电流无法关断



为什么将寄存器LEDCNTRL(0x22)设置为0x030000ul后使能定时器开始测量,血氧的红灯还是亮着的,而且我设置5MA和10mA驱动电流感觉亮度是一样的

注:寄存器写成功了,因为我把寄存器写完后再读回来,所有的寄存器配置都没有问题。