EDMA3 LOW LEVEL DRIVER

Unregisters interrupts if no other RM instance exists. After the EDMA transfers the first element, the src address will be indexed 4 bytes plus or minus prior to the next transfer. How to change default event queue or Transfer Controller, TC priorities? This page has been accessed 14, times. Almost all systems require some type of data movement - either from one memory location to another or from a peripheral register to memory or vice versa. To use this website, you must agree to our Privacy Policy , including cookie policy. The number of wait states changes with chip select space.

Uploader:	Kazizuru
Date Added:	20 February 2018
File Size:	23.74 Mb
Operating Systems:	Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads:	2307
Price:	Free* [*Free Regsitration Required]

Auth with social network: Added by Steven Hill about 5 years ago. That will allow you to amortize your overhead over more samples.

Mike Sumszyk ,evel Semester Project. Specify the channel type, channel number, tcc, event queue and the callback function. Page 1 Processes and Threads Chapter Processes 2.

Transfers from the EMIF interface are not very efficient. ACNT specifies the number of bytes in an "element". Thanks for the replies.

The destination address has similar indexing capabilities. Examples were simple examples that partitioned los LLD calls into separate functions alloc resources, configure transfers, start, delete. No such constraint is there for QDMA channels. The LLD was built specifically for syncing to peripheral events. Feedback Privacy Policy Feedback.

edma3-lld-rtos 2.12.01.23

The first entry means 4 channels from channel '0' i. Source and destination addresses levek fairly obvious. Hello Steven, Is it possible that you need to invalidate your cache prior to validating the transfer has completed? About project SlidePlayer Terms of Service. EDMA sample test application http: To make this website work, we log user data and share it with processors.

EDMA3 Keystone SoC Devices - ppt download

To make this website work, we log user data and share it with processors. Mike Sumszyk Spring Semester Project. A combination of these indexes can automatically perform "channel sorting" on incoming or outgoing data "free of charge" - with no levrl penalty. Source address Destination address Length or size What options might be useful to perform the transfer?

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

Develop corresponding service routines for these events. Create and open the EDMA3 instance. How does linking work?

Registers the callback function and enable interrupts. It is easy to set up and use if all you're doing are memory to memory transfers.

All drivers and applications running on all masters must keep this in mind and be programmed.

Each shadow region is also associated with a completion interrupt that can be tied to different interrupt events. More detailed descriptions of each function of the EDMA3 can be found in the pdf file linked to above.

DMA transfers can be triggered 3 different ways: A simple asynchronous transfer; akin to a memcpy. Internals and Design Principles. LLD is included e. The first entry means 4 slots from slot '0' i.