Other Parts Discussed in Post: TMDXEVM3358

"Honey, it's to remind me to always have the power consumption of my design on my mind."


"Watt is right! You see, my design is based on the AM335x Sitara ARM Processor and there's a tool called the Power Estimation Tool (PET) that I can use to get an estimate of power consumption. I simply enter values into the spreadsheet and a server-side active/leakage power modeling software does the rest."


"But is it updated?  Great question and yes it is. It’s updated to support:

  • The latest revision of AM335x (PG2.1) - which now goes to 1GHz
  • More DDR types (LPDDR, DDR2, DDR3, DDR3L)
  • New MPU OPPs and corresponding frequencies and
  • More accurate estimation of low power modes"

Using this tool, I am able to evaluate the power consumption for my custom use case."

"What if..."

"What if I forget where to find the tool? Don't worry, I made sure to bookmark the link: http://www.ti.com/pet "

“I need some time…”

“Some time to get up to speed on the tool? No problem, there’s a great how-to video that shows you how to use the tool in about 5 minutes on that same page. And might I say, that dude on the video will keep you entertained!”

“How  about..."

"How about real power numbers? I like your thinking. Let me show you the Power Consumption Summary wiki. The wiki is a collection of real power measurements measured with a high-precision digital multimeter on the AM335x Evaluation Module (TMDXEVM3358). I use the Power Consumption Summary wiki to get a better understanding of AM335x active power behaviors and also see the effects of power management techniques such as DVFS, low power modes like DeepSleep and Standby and others."

"Has anyone…"

"Has anyone updated the wiki? Yup, it’s updated as well and I bookmarked it, too: http://processors.wiki.ti.com/index.php/AM335x_Power_Consumption_Summary.”

“It’s just…”

"It’s just all too much for you? I understand.”

“No! It's just that a tattoo of Ohm's Law would have been much sexier!"

And so concludes our modern day soap opera of "Watt are You Doing?"; written, directed and produced by Alejandro Erives, Sitara ARM Processors Brand Manager. Hollywood, you can call me now.