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HMAC digest doesn't match expected (STM3221G-EVAL)

I just purchased the STM3221G-EVAL board and I am working through some examples. I am currently using running the HMAC example and it runs fine. However I am unable to get the HMAC to match the test vectors provided in the specification (https://tool...

OOmen by Associate II
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Problems with PWR_MODE STOP and the wake up with Timer LPTIM1

The LPTIM1 interrupt is running. But if I use the EnterStopMode function, the controller is not gone at the stop mode (LED1 come directly). If I use the EnterStopMode function the second time, the controller goes into the STOP mode and after few sec...

AxelMC by Associate II
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  • 6 replies
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digital read problem in stmf429 discovery

I'm trying to connect the limit switch to my stm32f429 discovery board. the digital read function is not working. I didn't get the desired output instead all the signals are high in IDR. I don't know what I'm missing?. I watch some examples on the we...

Ark1 by Associate II
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STM32L496 VDDIO2 / GPIOG pins

1. Do I need to provide power from different regulator for VDDIO2 pins or if I use the same level (3.3V) can I use VDD? I simply need lots of GPIO pins.2. LL_PWR_EnableVddIO2 has no effect in my case. IsEnabledVddIO2 always returns 0. I did wait for ...

How to enter shutdown mode?

I use STM32F091RB MCU.If I want to make MCU shutdown, how to enter shutdown mode?Is there any HAL API or something else?Thanks

cyt by Associate II
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  • 2 replies
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STM32F042: External clock and clock output

As described before (https://community.st.com/s/question/0D50X00009sWdDqSAK/stm32f042-bootloader-activation) I want to use 2 STM32F042 as CAN controller. So far I planned to use the internal HSI RC oscillator, but a +-5% tolerance seems critical for ...

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harald by Associate III
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  • 4 replies
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Issue with PA2 and PA12 pin in L432KC Nucleo

I'm using a reflective sensor to measure speed. In my PCB, I wrongly connected PA12 to the output of the sensor. I actually needed PA2 to use it as TIM2_CH3. So I jumped PA12 and PA2. This pin is pulled up to 3.3V with a 10K resistor. With no sensor ...

xpp07 by Senior
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  • 1 replies
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