SysTick usage in MKV46F256VLL16

[soaring_sun]

Hi,

I want to use a free running timer to capture the time stamp between the functions. I understand that I need to use Systick function to achieve it. Can someone let me know how I should be using it? Is there any sample example code to achieve it?

Regards

[jingpan]

Hi soaring_sun,

You can download KL82 SDK from mcuxpresso.nxp.com. In this SDK, there is a wolfssl_benchmark example. It use systick to count encryption/decryption time.

Regards,

Jing

[soaring_sun]

Hi,

I have downloaded the KL82 SDK that you have mentioned. But I don't find the example that you quoted. Should I be downloading the corresponding IDE as well? Then again, I'm working on KV4x board whose SDK and IDE is already with me. Is there an example of SysTick for this particular board?

Regards

[jingpan]

Hi,

Please refer to wolfssl_benchmark. You can see the code like this

    start = current_time(1);
    BEGIN_INTEL_CYCLES

    for (i = 0; i < numBlocks; i++)
        wc_AesCbcEncrypt(&enc, plain, cipher, sizeof(plain));

    END_INTEL_CYCLES
    total = current_time(0) - start;

All ARM cortex device have same systick. 

Regards,

Jing