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CC2540 内部温度传感器



求助:  cc254x读取内部温度传感器,程序如下

TR0 = 0x01;

ATEST = 0x01;

HalAdcRead(HAL_ADC_CHN_TEMP,HAL_ADC_RESOLUTION_14);

得到的AD值然后怎么计算成温度? 芯片资料上也没有具体的说明啊。。?用的内部参考电压1.25v。