About LPetr.1

LPetr.1 · 2024-09-13

Hello. I have LIS3DH accelerometer and I would like to use it with my ST32F4 board.I have found the BSP drivers :STM32Cube\Repository\STM32Cube_FW_F4_V1.28.0\Drivers\BSP\Components\lis3dshand also available here:https://github.com/STMicroelectronics/...

LPetr.1 · 2024-09-11

Hey. I would like some clarification regarding writing to Flash memory. Specificially, 4 bytes (float values).I have the following code: void FLASH_write_single_float(uint32_t address, float data_to_send) { if (address < 0x080E0000 || address > ...

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 · 2024-09-12

Are you suggesting that if I try to write 4 bytes one byte at a time to unaligned addresses I will have no problem, but if I try to write 4 bytes (32 bits) at once to unalligned addresses it will not work?

LPetr.1 · 2024-09-12

Yes I figured that this is to do with allignment, but I do not understand why? I tried to find a section in the reference manual that explains flash memory allignment and why it works this way.Why can we not write unaligned data to the flash memory? ...

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...

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How to use stm32-lis3dh driver

How to correctly write 4 byte (Float) value to STM32F405 Flash memory

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

STM32F407 Measuring tie between 2 impulses

STM32F407 TIM2 DMA driving neopixels

Re: How to correctly write 4 byte (Float) value to STM32F405 Flash memory

Re: How to correctly write 4 byte (Float) value to STM32F405 Flash memory

Re: STM32F407 Measuring tie between 2 impulses

Re: STM32F407 Measuring tie between 2 impulses

Re: STM32F407 Measuring tie between 2 impulses