DMA | Cypress Semiconductor
December 03, 2010
I have started to play around with the DMA on PSoC3/5. WOW! The things that can be done. Some of the Aps guys were having a contest to see how many DACs could be built.
4 analog DAC
3 by using the four sample holds.
4 PWM DAC
48 UDB PWM DACs (2 per)
Well I found a few more.
Use a DMA with a circular buffer to output to a port. That is eight more.
This means you could make 8 center aligned PWMs with the correc t phasing to each other. You can even add dead space. I figure a little logic could take care of the “kill” function and you have an E-Bike controller.
We already are starting to see some DMA junkies.
Now with the UDBs configuration memory being in the CPU address space and the ability of DAM to quickly move data, dynamic reconfiguration of the logic is just around the corner.
In fact with PSoC being able to self adapt I believe that in a couple of years it is likely to become self aware, become paranoid, and try to determine destroy the human race. I am pretty sure if you took apart one of the early model “Terminators” that you would find it chock full of PSoCs.