Reference control and status register (SYSCFG_CFGR3) 这个控制寄存器里有个bit:
ENBUF_SENSOR_ADC: Temperature sensor reference for ADC enable bit
This bit is set and cleared by software (only if REF_LOCK not set). When this bit is set, the
VREFINT is automatically enabled.
0: Disables the buffer used to generate VREFINT reference for the temperature sensor.
1: Enables the buffer used to generate VREFINT reference for the temperature sensor
这个the buffer如何理解,比方说使能了,是不是 the temperature sensor的ad采样值的参考电压就是vrefint,但实际实际好像不是这样,即便使能了
ad参考电压依然是vdda
ENBUF_SENSOR_ADC: Temperature sensor reference for ADC enable bit
This bit is set and cleared by software (only if REF_LOCK not set). When this bit is set, the
VREFINT is automatically enabled.
0: Disables the buffer used to generate VREFINT reference for the temperature sensor.
1: Enables the buffer used to generate VREFINT reference for the temperature sensor
这个the buffer如何理解,比方说使能了,是不是 the temperature sensor的ad采样值的参考电压就是vrefint,但实际实际好像不是这样,即便使能了
ad参考电压依然是vdda