I did some temperature testing of the NXP Evaluation Kit for iMX6ULL, using your provided Linux BSP :
Temperature Tested : - Room temperature : 24°C
- CPU - idle surface readings: 33.5°C ;
- SOC temperature - idle mode: 47°C;
- Power consumption of the CPU : 0.464 V;
Can you tell me why is this big difference between the CPU - idle surface readings and the SOC temperature - idle mode (Delta: 13°C) and if the SOC temperature - idle mode readings are correct, why is the SOC temperature so high (47°C) if the power usage is just 0.464V?