CC2340R5: SDK 9.10.00 secure/lib - RNG example

ari seo

Part Number: CC2340R5
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hi.

I’m using SDK 9.10.00 with IAR.
For generating passkeys, the previously used Util_GetTRNG() function is no longer supported, so I’m trying to use the RNG instead.
I looked at the example in the link below and tried to apply it, but RNG_open() keeps failing.

simplelink_lowpower_f3_sdk_9_10_00_83/docs/secure_drivers/doxygen/html/_r_n_g_8h.html

I’d like to know the example code where RNG_getRandomxxxx() is applied successfully.

Which example can I refer to in that path?

\...\simplelink_lowpower_f3_sdk_9_10_00_83\examples\ ????

3 months ago

0 ari seo 3 months ago

Prodigy 85 points

I’m sorry, but could you please remove the document file path included in the question when you provide your answer?
I’m unable to edit the question myself, so I’d really appreciate your help.

+1 Ryan Brown1 3 months ago

TI__Guru**** 217047 points

Hi ari,

ari seo said:
RNG_open() keeps failing

I assume you are using a BLE5-Stack project, in which case the Bluetooth LE stack already uses the RNG instance opened in SysConfig which would explain why calling RNG_open on the same instance fails. The easiest solution is to add another RNG module in SysConfig and use this instance in your application. This should allow you to use RNG APIs without further issues.

https://dev.ti.com/tirex/content/simplelink_lowpower_f3_sdk_9_10_00_83/docs/secure_drivers/doxygen/html/_r_n_g_8h.html

Regards,
Ryan

0 ari seo 3 months ago in reply to Ryan Brown1

Prodigy 85 points

I add one more RNG instance in Sysconfig. and use RNG_open(1, &rngParams);
Then it is work well.
Thank you.

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CC2340R5: SDK 9.10.00 secure/lib - RNG example