About LPetr.1

LPetr.1 · 2024-05-06

I am reading multiple ADC channels using Circular DMA and I have got a question that I want to clarify On the STM32CubeMX, I have configured my ADC as following:As you can see from above, I have Scan Conversion Mode and DMA Continuous Requests enable...

LPetr.1 · 2024-05-03

Hey. I am working on a task which requires to measure time between 2 different impulses with high precision. We have custom board that generates output pulse based on the capacitor and resistor values. The Input is LOW to HIGH impulse (Green color on...

LPetr.1 · 2024-03-04

I have been reading a bit about neopixels and the communication protocol they work. I have been searching for a library for the WS2812B neopixel but could not find one that would work out of the box hence I have decided to write my own neopixel drive...

LPetr.1 · 2024-02-06

I am working on the STM32F407 and we made some bad choises when selecting a motor. The motor control signal is 5V hence we need to generate 5V PWM signal using the STM32F407. Sadly, we have wired the GPIO from the STM32F407 directly to the motor cont...

LPetr.1 · 2024-02-02

I am using ST-LINK-V3 to flash my STM32G03 board. I am using ST-LINK_CLI.exe tool (I have used it in the past without any issues).I have built my firmware and generated .hex file. I then try to use the ST-LINK_CLI.exe tool as following: ```C:\Users\m...

LPetr.1 · 2024-05-06

Yeah your right. Thanks

LPetr.1 · 2024-05-06

My bad for typo on the counter period. However, that does not answer what happens when the first impulse is detected before the rollover and the second impulse after rollover For example, I have sent 3 pulses every few seconds (not precisely 2 seco...

LPetr.1 · 2024-05-06

Thank you very much. That is exactly what I have done.I have configured 2 timer channels as input capture (one for rising edge and another for falling edge) and tested it. When the waveforms are generated, I take the difference between two counter va...

LPetr.1 · 2024-03-04

First of all, thanks for the replies, I really appreciate all.By using the zero length pulse as has been suggested it seems that the issue goes away. uint32_t pwm_data[9]; pwm_data[0] = 10; pwm_data[1] = 20; pwm_data[2] = 30; pwm_data[3] = 4...

LPetr.1 · 2024-03-04

@Sarra.S I think I went ahead of myself. Lets step back a little and try to understand how does DMA work. I have the most basic example:My DMA settings:Mode: NormalDirection: Memory To PeripheralData Width: WordMy timer settings (Clocked at 84MHz) I...

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STM32 ADC DMA (External Trigger conversion source and Continuous Conversion mode)

STM32F407 Measuring tie between 2 impulses

STM32F407 TIM2 DMA driving neopixels

STM32F407 Using GPIO to generate 5V PWM

The elf loader file is not accessible when using ST-LINK_CLI.exe

Re: STM32F407 Measuring tie between 2 impulses

Re: STM32F407 Measuring tie between 2 impulses

Re: STM32F407 Measuring tie between 2 impulses

Re: STM32F407 TIM2 DMA driving neopixels

Re: STM32F407 TIM2 DMA driving neopixels