If you wish to download it, please recommend it to your friends in any social system. Create and open the EDMA3 instance. No such constraint is there for QDMA channels. I’m using the 0x CS5 space. Abstract It consists of three 3 libraries:

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What do you want to happen after the transfer is complete? For example, for bit audio data, ACNT would be 2 bytes. More on Processes Chapter 3. The crossbar to the EMIF is not great. Extra “Reload” parameter sets are available to hold another configuration that can be “reloaded” automatically into Channel X’s registers upon completion of a transfer.

Can’t get DMA using low level driver working on DSP – ARM9 Based Platforms – Critical Link Support

The subsequent steps in this process should be done using the respective shadow region registers. Auth with social network: Uses polling to determine when the transfer has completed. Registration Forgot your password? Source and destination addresses are fairly obvious.

It is assumed that if a particular channel number x is reserved for a particular master then the TCC x is also reserved for that same master. Can QDMA be used for external memory transfers? Ramamurthy1 Process Description and Control B. The best way to learn how to use the LLD is to download the pdf file shown below and work through the examples.


About project SlidePlayer Terms of Service. This example includes synchronization, linking, and sorting. LLD is included e. ChX completes, kicks off ChY Solution: It consists of three 3 libraries:.

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This array is an array of structures having the first structure member as the event queue number and the second structure member as the priority. Each one of the capabilities outlined above require specific API calls to set the source and destination addresses, count values, indexing, linking and chaining as well as configuring what type of trigger is used to start the transfer. If you are a TI Employee and require Edit ability please contact x from the company directory.

Initialize the Resource Manager to get all the available resources. Set the params for the transfers.

Navigation menu Personal tools Log in Request account. This page was last modified on 21 Marchat The EDMA3 also allows for “linking” and “chaining” capabilities. Feedback Privacy Policy Feedback. So that once I got the internal memory to memory transfer going I could change the source address to my external memory and test that.


After the EDMA transfers the first element, the src address will be indexed 4 bytes plus or minus prior to the next transfer.

[meta-ti] [PATCH] edma3-lld: add new recipe for edma3 low level driver

Source and destination addresses are fairly obvious. We think you have liked this presentation. DMA transfers can be triggered 3 different ways: The cache uses “cache lines” which are bytes long, so if you don’t align your buffers, you can end up trashing adjacent data when you flush or invalidate your cache.