API DieTemperature fails

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Anonymous
Not applicable

Using the API DieTemperature on PSOC5 (CY8C5588AX*-060) returns a temperature with an offset of app. -42Deg. E.g. the Chip has 25°C, the funktion returns -17°C. Anyone to help me ? The API returns no Error.

   


Greetings,

   

Christian Finger
Next Energy
http://www.next-energy.de
 

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2 Replies
Anonymous
Not applicable

I've found the same issue - die @ about 30C reading -10. The temperature does go up when the chip is warmed so it may just be a offset error.

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KishoreS_96
Employee
Employee
5 sign-ins 50 replies posted 25 replies posted

 Hi all,

   

Please refer to the PSoC5 ES1 Silicon Errata document over here - http://www.cypress.com/?rID=43758

   

According to the Errata No - 2, Temperature sensor is not factory trimmed. That is why you are getting a very big variations in the output. This fix will be available in ES2.

   
   

Regards,

   
   

Kishore.

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