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booting dsp code under arm control from linux



i am done with the linux boot on our custom board DM6446 using the open source git kernel.Now i want to control dsp from linux what are the steps to do this?

 

Regard's

Rohan Tabish

  • by default, I belive u-boot places DSP is reset state (power saving mode).  From our DVSDK framework point of view, a call to Engine_open (part of our codec engine API) loads the proper DSP image and takes DSP out of reset such that the DSP starts running such image.  Therefore, if you are using our codec engine framework, you can 1) develop you DSP algorithm (can be done entirely under CCS/JTAG if you wish), 2) package into an xDM compliant algorithm that fits one of the major codec engine classes (there is a new class call IUniversal for more generic algorithms), 3) access you dsp algorithm from your user space linux application thru codec engine framework...