STM32F446 Tempreature Sensor, ADC
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‎2024-08-19 1:06 AM
I am trying to read ADC value of internal tempreature sensor of my STM32F446 board. The data sheet says that the temp sensor is connected to ADC1_IN18 (page no. 37/198), but there is no such pin in STM32F446xx pin and ball descriptions. Can someone please help me from which pin can I extract the analog value of temperature sensor ??
Thanking you in advance..
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STM32F4 Series
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‎2024-08-19 1:49 AM
Hello @Yoshimitsu_Manji_clan and welcome to the community,
You need to refer to the reference manual of the product RM0390 / figure 79
As you can see some ADC inputs (Temperature sensor, Vref, VBAT) are connected internally and not exposed on pins.
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‎2024-08-19 1:11 AM
As it's an internal sensor, it is not brought out to a pin, and is connected to ADC internally.
JW
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‎2024-08-19 1:49 AM
Hello @Yoshimitsu_Manji_clan and welcome to the community,
You need to refer to the reference manual of the product RM0390 / figure 79
As you can see some ADC inputs (Temperature sensor, Vref, VBAT) are connected internally and not exposed on pins.
