Cache misses

Rahul49721

Other Parts Discussed in Thread: SYSBIOS, DM3730

I have already asked this question in BIOS forum. I was told that this question is more related to CCS tools than BIOS.

Here is my question:

Is there any register or any technique that I can use to monitor cache misses? My goal is to get a notification and print a message in my application whenever there is a cache miss. I am using SysBios v6.31 and CCS v4.2.3 and C64x+ core. My application runs on real hardware, not a simulator. In my application, I have a debug buffer. I want to log the cache misses to this buffer.

Thanks,

Rahul

over 14 years ago

0 JohnS over 14 years ago

TI__Guru**** 163025 points

Rahul,

This is possible depending on which C64x+ based device you have. Some of them have pretty advanced onchip debug capabilities that could enable this. If you are able to configure the profile clock to count cache cycles of if you can setup a breakpoint to break on a cache event then your device should have sufficient capability to do this. We call the capability Advanced Event Triggering or cTools.

There is a library that you can embed into your application to control these features. Part of the CToolsLib package is a library called AETLIB. Check out the links below.

http://processors.wiki.ti.com/index.php/CToolsLib

http://processors.wiki.ti.com/index.php/AETLIB

Regards,

John