When running JTOP on Orin NX, there are 4 power data can be read: CPU_GPU_CV, IN, SOC and ALL(Figure1). The meaning can be checked from Developer Guide(Figure2).
What part(portion) does each channel stand for?
If we want to know the power consumption of whole SOM, which one should we refer to, channel 1: VDD_IN or Channel 4: Summation(ALL)?
(We ran heavy loading program with MAXN mode to get the monitoring data 23W from channel 1 and about 40W from channel 4. We are confused.)
1. So, the power of VDD_IN is power consumption of whole SOM, right?
Yes, VDD_IN is Total SOM power. 2) The value of VDD_CPU_GPU_CV is power of CPU and GPU? The VDD_CPU_GPU_CV is a CPU, GPU, CV (ie DLA & PVA) combined power rail. 3) How about VDD_SOC? By the value from Power GUI, it looks like not the whole SOC power, what does it stand for? Yes, it is not whole SOC power. It is a SOC’s core rail which supplies memory subsystem, engines like decoder, encoder, vi, vic, isp …etc. 4) Channel 4: SUMMATION, when or what condition do we need to check this value? The summation channel can be configured to measure sum of two or three INA channels. It is valid only when summed channel’s input voltages are exactly same. It can be used to set over current limit for summation current.