About Linas L

Linas L · 2024-07-06

Hello,I am developing project where I need to do some image processing on BW image. All was great, but I started having problems with DMA (maybe I always had, don't recall)Idea is that I simply load data to internal SRAM with DMA, and when I get TC, ...

Linas L · 2024-04-15

Hello,In my project I need to sample 3 phase current to see if where is short or not. I am using STM32H753 HRTIM. Not only that I must place sampling point as close to PWM transition from high to low as possible (peak current)I connected phase curren...

Linas L · 2024-02-19

Hello,In my project I need to have ~25KHz high resolution PWM generation. So for this I selected STM32H753 with 480MHz HRTIM1.I am struggling producing correct outputs for my needs, maybe some one has this done already and care to share the project ?...

Linas L · 2023-12-30

Hello,I need to detect input when it goes over REF/2 (1.65V). I do supply VREF+ pin with 3.3000V.My signal has offset of 1.2V, and it will go over 2V when I apply signal to it.Everything is working, but it has unexpected behavior. I can only use nega...

Linas L · 2023-12-06

Hello,In my application i need to run double for loop for data inside SRAM. and I would love to speed up my program as much as possible.uint32_t xs = 0, yx = 0, sum =0, i = 0;for(uint32_t x = 0 ; x<600 ; x++){ for(uint32_t y = 0 ; y<600 ; y++) ...

Linas L · 2024-07-09

Hello GPDMA1_CH12_BR1 = (Transfer_size*2) | (Transfer_size<<16); This is for size, in my case 10b 608 pixels * 608 pixelsFor some reason, it just started working again. (this was after FPGA recompiling, maybe it was glitching my power supply, and n...

Linas L · 2024-04-20

I was unable to do it, so just reading injected ADC channel register in timer update, and it looks like working.

Linas L · 2024-01-03

Created a ticket for STM32 engineers and they finally provided clarity on this matter. As it turns out, it uses completely different REF, and it is independent of VREFBUF and external reference. It is an integrated 1.2V reference that could not be ch...

Linas L · 2024-01-02

With debugger, I tried all combinations of registers on REFBUS and COMP, with no effect... Note I have reference driving REF+ pin.

Linas L · 2023-12-31

Tested on NUCLEO-H723 board and used example for CUBE folder. Connected power supply with multimeter on top of PB0 pin.And now I was able to test threshold, and is exactly at 1.2V (with COMP_INPUT_MINUS_VREFINT setting). This is why half of my boards...

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STM32U585 GPDMA with DCMI error

STM32H7 3 Phase Current measurement with DMA with precise location defined by HRTIM (problem)

STM32H753 HRTIM for BLDC control with complementary outputs

Unexpected COMP1 behavior on STM32H723

STM32U5 SIMD usage (or any other trick to speedup math)

Re: STM32U585 GPDMA with DCMI error

Re: STM32H7 3 Phase Current measurement with DMA with precise location defined by HRTIM (problem)

Re: Unexpected COMP1 behavior on STM32H723

Re: Unexpected COMP1 behavior on STM32H723

Re: Unexpected COMP1 behavior on STM32H723