Reply by ratemonotonic●December 22, 20082008-12-22
Hi All ,
Can any one with experience with TI C6713 help me understand EDMA
operation. I am using the C6713 DSK with AIC23 codec on board.
I am using the dsk_app application from the example directory of the
CCS installation.
The example runs out of the box i.e. EDMA ISR was hit both for RX and
TX transfer completion. I also put a sine wave in the line in and
varified a sine wave on the line out. In order to understand the
working I started making changes to the project.
I started out by changing the Memory section Manager in the DSP/BIOS
configuration file and observed a starange
behaviour : When I placed the all the memory sections in the SDRAM
instead of IRAM section only the TX transfer completion interrupt were
generated. But when I places the .text section back into IRAM , the
program started working as before.
Has any one seen this behaviour ? Can you explain the reason for
this ?
BR
Niladri Bose