Nori, Sekhar wrote:
On Wed, Jul 14, 2010 at 00:31:00, troy.kisky@boundarydevices.com wrote:
On Tue 13/07/10 6:00 AM , "Nori, Sekhar" nsekhar@ti.com sent:
The reason is so that the IRAM data can be fetched and usedwhile
EVENTQ_1 fetches the next buffer of data from sdram into IRAM.Thanks for the explanation. That sounds reasonable.
Just curious as to whether you actually faced an issue when using the same event queue for both transfers?
I just tested this on DM365 with both transfers on EDMAQ_0 with 16K each of capture and playback IRAM at 48KHz sampling rate and did not find any issue.
Anyway it makes sense to make provision for platform to choose different queues for both transfers so will implement my patch that way.
Thanks, Sekhar
IIRC, the DM365 has a fifo, the 6443/6446 doesn't. So, the 365 doesn't need to use IRAM and shouldn't use it. Test using the same controller on a board without a fifo.
Troy