search for rngClass keyword in both HSE-B Firmware Reference Manual and also in S32K312_HSE_Service_API_Reference_Manual which can be found in HSE FW package.
Regards,
Lukas
Hi Lucas,
I am trying to generate the Random number generation but its not working and giving back the response that the feature is not supported (HSE_SRV_RSP_NOT_SUPPORTED).
Data cache can be disabled by DC bit in CCR ARM core register:
https://developer.arm.com/documentation/dui0646/b/Bhcjabhi
You can take a look at Crypto examples like:
c:\NXP\S32DS.3.5\S32DS\software\PlatformSDK_S32K3\RTD\Crypto_43_HSE_TS_T40D34M40I0R0\examples\S32DS\S32K3XX\Hse_Ip_AesEncAsyncIrq_S32K344\src\main.c
You can find something like this in the LOCAL VARIABLES section (there are more similar definitions for different type of objects):
Regards,
Lukas
Hi Lucas,
I did same as you suggested, please look into the images attached. But still its not wotking, kindly provide any working code or try at your end, kindly reply on urgent basis. I have also attached main file.I am working with IAR with A_B swap memory of HSE
response i am getting from the code below.
#define HSE_SRV_RSP_NOT_SUPPORTED ((hseSrvResponse_t)0xAA55A11EUL) /**< @brief The operation or feature not supported. */
I tried to turn off the data cache as a first step:
And I can see that the random number is generated:
So, this confirms it's caused by the cache. I can see that you only copied the definitions from the example. But this does not solve the problem. If you take a look at the function:
... there are local variables used for communication with the HSE via MU and the stack is obviously cacheable because it does not work.
HSE DEMO EXAMPLES is non-autosar code. If you need to be autosar compliant, it will be necessary to use Crypto layer in RTD. You can take a look Crypto examples in RTD - examples with "Crypto_" prefix.
Regards,
Lukas
I have some troubles to open the project and I can't spend so much time with this. But what I would try:
There are following variables in GetRngNum() used as inputs for HSE: pHseSrvDesc and pGetRndSrv.
To force them to no-cacheable area, you can define them as global variables and use:
#define CRYPTO_43_HSE_START_SEC_VAR_SHARED_CLEARED_UNSPECIFIED_NO_CACHEABLE
See the example in RTD which shows how to do that exactly:
And then do the same for RandomNumber array in main.c file.
Regards,
Lukas
Hi Lucas,
what is the problem you are getting to open this project? Please let me know?
I tried in main and rng.c file but still its not working. please share at least the main file after modification if possible
and i tried in rng.c file
Hi Lucas,
Before adding these folders services, framework, interface and drivers to the project, the mcal configuration was having no errors but after adding these folders to the projects the mcal configuration is having the errors. please find the attached image. kindly help for hard fault. you can this project i have already attached in previous message.
If possible provide some time or invite to discuss, can be half an hour call, i need to clarify many things.
A couple of things:
- the error "Processor..." was caused by missing .settings folder. I added the folder from another project and the problem disappeared.
- then there were some issues with paths. Not sure why but I fixed it using "workspace" paths like this:
- and the hard fault was caused by linker file:
There's only 96KB RAM, so it ends at 0x20417FFF.
Regards,
Lukas
