Many implementations on Cortex requires true random number generation.
It is very common to use seed based on the tick counter and then rand() function which is "just" a constant fixed known function.
However, if after each reset, application get the tick at the same time (most probably) it will produce the same "randoms" :-(
- I curious to know community opinion and knowledge about that problem? - Any ideas how to collect more entropy?
Off-course, without using special hardware (TRNG) for that.
Amir
Thanks. I will try using the ADC.
It's amazing that such a "trivial" issue is so not trivial when you try it.... :-)