DSP/BIOS 5.x and external RAM

Fawad Nackvi62335

Hello,

I am using a C6747 and have some critical code and data in internal RAM. However I am running out of internal RAM so I would like to know what is the best strategy to move BIOS code and data into external RAM without impacting the performance. .cinit is the obvious choice but there is a lot of rtdx buffer and other stuff which by default sits in internal RAM.

I would also like to minimize trampolines.

Thanks,

Fawad

over 14 years ago

0 ToddMullanix over 14 years ago

TI__Guru* 96960 points

Tough question to answer... I'd move the trace/LOG items out of internal memory. This would include RTDX. I'd keep my stacks in internal memory, but try to squeeze them down in size. You could move the idle task's stack out of internal memory though.

Todd

0 Fawad Nackvi62335 over 14 years ago in reply to ToddMullanix

Expert 1080 points

Todd,

Thanks for the suggestion. I will try them out. Any one else can chime in with any other suggestions? This has to be a major issue as there is never enough internal memory on any DSP projects I have worked on.

Thanks,

Fawad

Processors

Processors forum

DSP/BIOS 5.x and external RAM