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Anvi · 2021-09-10

Hello,I'm having trouble getting the interrupt for the RNG on the STM32F207 to trigger. Below is a code snippet of what I'm doing;.void generate_rnd_num(uint32_t *rnd_num) { RNG_HandleTypeDef rng_handler; rng_handler.Instance = RNG // Point t...

Anvi · 2021-07-24

Hello,I'm having trouble using the RNG peripheral on the STM32F207.I'm using the HAL functions to set things up and I keep getting back the same number. I've made sure to enable the RNG Clock. See the steps below:Enabled RNG CLK: __RNG_CLK_ENABLE()En...

Anvi · 2021-07-09

Hello,The reference manual for the STM32F207 states that the F20x and F21x family has a cryptographic processor: Ref Manual - Page 508. The datasheet for the F207 doesn't state any support for that though. Is this a mistake in the reference manual?Th...

Anvi · 2020-11-09

Hello,I'm developing on an STM32F207 (datasheet). I am attempting to modify a couple of the internal Flash sectors (the 128kB sectors 10 & 11 to be specific). I'm trying to figure out how to do this in a way that will not block the CPU. Let's say I'm...

Anvi · 2020-11-05

Hello,I'm developing on an STM32F207 and I would like to know what the procedure to execute code from RAM is?I need to modify a couple of sectors of the internal Flash but the F207 does not have banked memory so I would need to execute the flash eras...

Anvi · 2021-09-10

 That was it! Thanks

Anvi · 2021-07-25

Figured out the problem... I was never setting the Instance of the RNG handler to point to the base of the RNG peripheral so it was never getting enabled. :|Thanks for all your help.

Anvi · 2021-07-24

The F207 datasheet says that it has a TRNG: DatasheetThe HAL lib i'm using is also specifically for the F207.

Anvi · 2021-07-24

So this is the output of the RCC_PLLCFGR register:0x25403C19So this tells me that PLLQ is configured to divide by 5: Reference manual. So:freq(RNG_CLK) = f(VCO_CLK)/5 PLL_VCO = (HSE_VALUE / PLLM) * PLLN = (25000000 / 25) * 240 = 240 Mhz 240 Mhz /...

Anvi · 2021-07-24

Yeah, I should have clarified, I Did try calling RNG_Init() as well after enabling the clock. Same issue with returning the same number

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