need FreeRTOS help for rnd example project in SDK

[Mohammad]

Hi,

    I implemented the rnd example under ../crypto/nrf_cc310/rnd with freeRTOS. While testing i observed strange behaviour. 

   While debugging i got 

   ==================== TEST START ====================

   After that, there is no output in the debug screen. Then I paused the debugging and again started to run it. Then i got 

CRYS_RND_AddAdditionalInput passed

Again pause and run the debugger.  The output is as follows

CRYS_RND_Reseeding passed

CRYS_RND_GenerateVector for first vector passed

CRYS_RND_GenerateVector for second vector passed

Two generated vectors are different as expected

CRYS_RND_GenerateVectorInRange 1 passed

CRYS_RND_GenerateVectorInRange 2 passed

CRYS_RND_UnInstantiation passed

CRYS_RND_GenerateVector failed as expected

CRYS_RND_AddAdditionalInput passed

CRYS_RND_Instantiation passed

CRYS_RND_GenerateVector 1 passed

CRYS_RND_GenerateVector 2 passed

Compare passed

All RND tests passed

==========================
All tests passed
==================== TEST END ====================

To get all the test passed i paused and again run the debugger 4 or 5 times. I need solution for this.

[Vidar Berg]

Hi,

Please try to use the "non-interrupt" variant of the cc310 library and remove the call to NVIC_EnableIRQ(CRYPTOCELL_IRQn); in integration_test_plat_utils.c->SaSiError_t integration_tests_setup(). This should prevent the library from entering the __WFE loop.

[Mohammad]

Hi Vidar Berg,

  I have tried by disabling the NVIC_EnableIRQ(CRYPTOCELL_IRQn); in integration_test_plat_utils.c->SaSiError_t integration_tests_setup().

The output,

==================== TEST START ====================
Failed SaSi_LibInit - ret = 0x6
==================== TEST END ====================

[Vidar Berg]

Hi,

I'm not getting the error here. Attached is my modified project which I used with SDK v15.3.0. 

blinky_rtc_freertos_SaSi_test.zip

[Mohammad]

Hi,

   Thanks for your response.

I have removed the existing libnrf_cc310_0.9.12.a.

Added the same from the ..\external\nrf_cc310\lib\cortex-m4\hard-float\no-interrupts\libnrf_cc310_0.9.12.a

 Now it works. Once again thanks Vidar.