About TKöhl.1

TKöhl.1 · 2020-03-17

I have migrated some Code from a STM32f103 to my new STM32f411CEU6 Microcontroller. While configuring the Timers for the PWM generation I ran into a problem, namely the pulses are about 1500us, when they should be 1000us.Here are my Clock and Timer c...

TKöhl.1 · 2020-02-19

I am using the STM32F103C8T6 Microcontroller to read a sensor via I2C. I am using the stm32Cubemx to generate the initialisation code and Visual Studio and VisualGDB for debugging. My STM32CubeMX setup reads as follows:and my clock configuration:But ...

TKöhl.1 · 2020-03-20

I now fixed the error. I am pretty sure, that PLL was configured as system clock prior to SystemClock_Config. While stepping through the code, I also hit the return HAL_OK statement of HAL_RCC_ClockConfig().The Solution is pretty Simple. I let the Cu...

TKöhl.1 · 2020-03-19

Thank you, for pointing me in the right direction!I now configured the PLL to take the HSI as an Input, PLLM = 16, PLLN = 400 and PLLP = 4.This does also reflect in the generated code:void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitSt...

TKöhl.1 · 2020-02-20

Thank you for your hints. I now solved the error:After the first i2c initialisation i force reset the interface to get rid of some bug (It just dosn't work without it :grinning_face_with_sweat:)__HAL_RCC_I2C2_FORCE_RESET(); HAL_Delay(1000); __HAL...

TKöhl.1 · 2020-02-20

Thank you for your answers.I will take a look into the RCC registers and trace back where the error in the clock generation could lie.I have quite an amature setup and can't measure clock speeds that are beyond a few MHz. So I configured the hardware...

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My PWM Timer of the STM32f411 generates wrong Pulses. Any Ideas?

I2C SCL operating frequency is very low. I configured the I2C2 Interface of my STM32F103 to have a clock frequency of 100 KHz (standard Mode) but it turns out to only be around 4 kHz. Can you point me in the right direction as why this could happen?

Re: My PWM Timer of the STM32f411 generates wrong Pulses. Any Ideas?

Re: My PWM Timer of the STM32f411 generates wrong Pulses. Any Ideas?

Re: I2C SCL operating frequency is very low. I configured the I2C2 Interface of my STM32F103 to have a clock frequency of 100 KHz (standard Mode) but it turns out to only be around 4 kHz. Can you point me in the right direction as why this could happen?

Re: I2C SCL operating frequency is very low. I configured the I2C2 Interface of my STM32F103 to have a clock frequency of 100 KHz (standard Mode) but it turns out to only be around 4 kHz. Can you point me in the right direction as why this could happen?