About JHöfl.1

JHöfl.1 · 2022-02-18

I'm having a real nasty bug and finally found the reason for it. But the thing is, that I don't understand where it comes from.I calculate a variable within method A of a class and at the end of said method i pass it to method B by value. When steppi...

JHöfl.1 · 2021-12-01

I'm trying to use the idle line interrupt in combination with dma to send and receive data from the serial port to my STM32F417VG based board.I got as far as being able to send with dma successfuly and also reveive data via the idle line interrupt. T...

JHöfl.1 · 2021-08-10

Hello dear ST-Community,here is a brief explaination of my problem:I'm using multiple stepper-motors in my system.I want to use 3 timers per stepper.Timer generates the PWM signal for the stepper-driver (easy to achive)Timer captures the signal of th...

JHöfl.1 · 2021-03-01

Hello dear ST-Community,I'm currently working on a 8-Bit interface for a TFT-Display. I'm using a STM32F405RGT6 for the Project.While debugging a timing issue i ran into, I found an interesting behavior when using __asm__ __volatile__("nop") for ns-s...

JHöfl.1 · 2020-07-29

I'm working with the Nucleo-G474RE Board. With the STM32CubeIDE I set up FreeRTOS and assign TIM6 as Timebase Source (as recomended by the IDE). I create a basic Thread to test a basic scoped timer I want to use for timing measurement. The ScopedTime...

JHöfl.1 · 2024-10-24

@ATempleyPEL How do you have the BOOT0 configured?

JHöfl.1 · 2024-10-23

@ATempleyPEL Hi, unfortunately I didn’t manage to get it working either. I’m now proceeding with third-party bootloaders. Good luck with your project!

JHöfl.1 · 2024-06-17

I'm trying to get this to work on a G031. I can successfully jump into the bootloader, but I'm unable to communicate with the G0. There's no response from the device when using CubeProgrammer, and it also doesn't reply when I send commands manually v...

JHöfl.1 · 2022-02-18

Thanks for the tip. I haven’t used this feature befor. It was really helpful.

JHöfl.1 · 2022-02-18

The culprit was one of the ccr interrupts that are activated right befor the method is called. Within them i call the method aswell but with a different value for idx.I only noticed from looking at the call stack.

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Value of passed variable changes during function call !?

Problems using USART with idle line interrupt and dma to send and receive data.

Is it Possible to change the timer count direction dynamically without having to wait for it to over- or underflow?

Confusing behavior of asm volatile("nop")

Using a TIM2 for µs measurement in thread in combination with FreeRTOS leads to HardFault_Handler being called.

Re: How to jump to system bootloader from application code on STM32 microcontrollers

Re: How to jump to system bootloader from application code on STM32 microcontrollers

Re: How to jump to system bootloader from application code on STM32 microcontrollers

Re: Value of passed variable changes during function call !?

Re: Value of passed variable changes during function call !?