Thanks a lot for the reply!
As suggested, I read through the related document. In my understanding, one eMMC NX module in sleep state is supposed to consume around same power. But, in the reality, same eMMC module was tested on Li Nano carrier board, and our customized board, tegrastats presents different results:
On Li Nano board:
RAM 943/7774MB (lfb 1502x4MB) SWAP 0/3887MB (cached 0MB) CPU [0%@1190,1%@1190,0%@1190,0%@1194,off,off] EMC_FREQ 0%@204 GR3D_FREQ 0%@114 VIC_FREQ 0%@115 APE 150 MTS fg 0% bg 0% AO@32.5C GPU@32C PMIC@100C AUX@33C CPU@33.5C firstname.lastname@example.orgC VDD_IN 1377/1408 VDD_CPU_GPU_CV 202/204 VDD_SOC 364/373
On our customized carrier board:
RAM 1400/7774MB (lfb 1386x4MB) SWAP 0/3887MB (cached 0MB) CPU [1%@1190,0%@1190,0%@1190,0%@1192,off,off] EMC_FREQ 0%@204 GR3D_FREQ 0%@114 VIC_FREQ 0%@115 APE 150 MTS fg 0% bg 0% AO@41C GPU@40C PMIC@100C AUX@42C CPU@42C email@example.comC VDD_IN 2200/2208 VDD_CPU_GPU_CV 240/243 VDD_SOC 439/444
You can see the total power consumption with the same NX module on two boards: 1377mW vs 2200mW.
I have two questions about the testing results:
How come the power consumption difference is so big? I got totally confused about it.
Also, in each case, the total power consumption is much greater than the sum of CPU_GPU_CV & VDD_SOC. In sleep state, how come other parts of the NX module have consumed that much power?
We are trying to build battery powered productions with NX module, and the power consumption is very important in design consideration.
Again, thanks a million!