Hello all
I am trying to run two channels of G.729 vocoder on the c5502 processor. The
processor is running at 300 MHz and the external SDRAM ( synchronous interface
with the EMIF ), is running at 100 MHz.
The complete code (.text) section of G.729 is placed in the external memory. All
other sections like the .stack, .const, .cinit, .data are placed inside the
inernal memory.
I have enabled the icache. A single cahnnel G.729 loopback works well. ie I am
able to perform the encoding and the decoding for a single channel with in two
DMA interrupts which are 10 msec apart. However, when I enable the second
channel too, there is distortion in the voice.
How can i improve the performance of the code by more efficiently using the
icache. I cannot change the code. How can i change the placement of the code in
the external memory, so that i can use the cache more efficiently?
Thank You
Aditya
VirtualWire Technologies
IIT Delhi
