LPC55S36 User Manual

[BrKu]

Where can I find the user manual for the LPC553xx / LPC55S3xx?  The user manual on the product page is the eval board user manual.  Specifically, I'm looking for information on how to read the on-board temperature sensor as in UM11126 section 39.7.6

Thanks

[BrKu]

Thank you!

[Alice_Yang]

Hi @BrKu 

Thanks for contacting us.

Please download from:

https://www.nxp.com/webapp/Download?colCode=LPC553xRM&appType=license 

Hope it helps. 

BR

Alice

[BrKu]

Thanks, Alice.

Section 47.3.7 in the document you provided describes to how to set the ADC up to gather the temperature sensor data, and the equation to convert that data into a temperature, but not the coefficients for the equation.  It does state:

A, B, and α are specified constant values from the ADC electrical information in the chip data sheet

I haven't been able to find them in either of the data sheets listed on the product page:
https://www.nxp.com/docs/en/data-sheet/LPC55S3xDS.pdf

https://www.nxp.com/docs/en/data-sheet/LPC553x.pdf

(But it wouldn't be the first time I missed a needle in a haystack).  Where can I find them?

Thanks

[Alice_Yang · Accepted solution]

Hi @BrKu 

Thanks for your reply.

I will confirm with our internal team and create a private ticket for you to follow up.
Regarding the values A, B, and α, please also refer to the SDK demo lpadc_temperature_measurement.

BR

Alice