S32K344 Temperature Sensor

[liyongfeng]

The IC temperature value was obtained from the ADC0-19 channel and calculated using the code shown in the figure below. However, the temperature value fluctuates severely. What is the reason for this? How to solve it?

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liyongfeng_2-1716949984899.pngliyongfeng_3-1716949992560.png

[Senlent]

Hi@liyongfeng

We have provided you with API functions to calculate temperature sensor conversions

please test the function below:

Adc_Sar_Ip_TempSenseCalculateTemp();

Senlent_0-1717059943934.png

[liyongfeng]

I used this API, but there was no improvement. The temperature value is still jumping

liyongfeng_0-1717136726828.png

liyongfeng_1-1717136763905.png

liyongfeng_3-1717137131849.png

According to parameter TS-ACC2, Is it allowed for temperature fluctuations to occur within the range of ±10 ℃?

liyongfeng_2-1717136798694.png

[Senlent]

Hi@liyongfeng

Could you please provided your project and i will help you to check it agian.

The temperature sensor will have errors, but there will not be such a large fluctuation

[liyongfeng]

Because this is the project code, we cannot provide it to you. Can you provide me with a good demo of S32K344?

[Senlent]

Hi@liyongfeng

no problem, so which version the RTD you're using?

[liyongfeng]

Is there any other way to send my code to you? 

[Senlent · Accepted solution]

Hi@liyongfeng

RTD 2.0.0 and test result, very stable.

Senlent_0-1717145585169.png

[Senlent]

Hi@liyongfeng

you can sent me a private message.

[liyongfeng]

RTD_4.4_2.0.0_D2203