AM335x Power Measurement Archive

AM335x Power Consumption for different use cases
The power measurements have been performed on the earlier version of software release. The ARM clock frequency and DDR clock frequency are different than the configurations shown in the datasheet.

Dynamic voltage and frequency scaling (DVFS) and SmartReflex Adaptive Voltage Scaling (AVS) are not enabled in the software. VDD_MPU and VDD_CORE active power can be reduced by utilizing these power management techniques.

No OS : DDR Access
Software : Bare metal code Use Case : Continuous DMA read/write from/to DDR2 memory OPP : OPP100 (ARM 550 MHz, DDR 200 MHz, L3 200 MHz, L4 100 MHz)

No OS : Static Image Display
Software : Bare metal code Use Case : Display a static image on the LCD panel OPP : OPP100 (ARM 550 MHz, DDR 200 MHz, L3 200 MHz, L4 100 MHz)

Linux PSP : No application running after boot
Software : Linux PSP Use Case : Command prompt after login, No application running OPP : OPP100 (ARM 550 MHz, DDR 200 MHz, L3 200 MHz, L4 100 MHz)

Linux PSP : Dhrystone
Software : Linux PSP Use Case : Dhrystone OPP : OPP100 (ARM 550 MHz, DDR 200 MHz, L3 200 MHz, L4 100 MHz) Measured DMIPS/MHz : 1.8 ~ 1.9 DMIPS/MHz

Android DevKit : H.264 AV playback
Software : TI AM335x Android DevKit Use Case : H.264 video playback OPP : OPP100 (ARM 550 MHz, DDR 200 MHz, L3 200 MHz, L4 100 MHz)

Android DevKit : MPEG-4 AV playback
Software : TI AM335x Android DevKit Use Case : MPEG-4 AV playback OPP : OPP100 (ARM 550 MHz, DDR 200 MHz, L3 200 MHz, L4 100 MHz)

Android DevKit : Image Display
Software : TI AM335x Android DevKit Use Case : Image Display (Sunset) OPP : OPP100 (ARM 550 MHz, DDR 200 MHz, L3 200 MHz, L4 100 MHz)

Android DevKit : 3D Graphics (Vase)
Software : TI AM335x Android DevKit Use Case : 3D Graphics (Vase) OPP : OPP100 (ARM 550 MHz, DDR 200 MHz, L3 200 MHz, L4 100 MHz)

OPP Power Comparison
Software : LINUXEZSDK-AM335X Use Case : Dhrystone Benckmark, Linux Matrix GUI CORE OPP : DDR 200 MHz, L3 200 MHz, L4 100 MHz