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Driving a RGB led matrix display (HUB75E) using custom board made with STM32H750. Earlier the prototype was made with STM32F205 and there was a minute flickering in some scenarios (brightness low). so thought of designing the board with STM32H7. But ...
I would like to control RC servos with PWM. Problem is that "Normal" PWM would waste most of the precision on the PPM period (20ms) leaving 5% of 16 or 32 bit timer for duty cycle. (1-2ms)I was reading about cascading timers and that is probably the ...
Hi, I have an incremental encoder with 2400 counts per rev that is connected to a ball screw with a pitch of 5mm. I'm trying to accumulate the total count which I then use to calculate the exact distance of the object attached to the ballscrew. I've ...
Hi,recently I switched from Arduino to Nucleo and now I wanted to play around with the H745ZI-Q and was following the step by step guide by st. Whenever I try to load a program to the mcu, only the demo blinky program is running. I have not found any...
HiI've configured two ADC 1 and ADC5 in independend mode with DMA and triggered by master compare from HRTIMER.I have two problemsFirst. When I have started two ADCs by HAL_ADC_Start_DMA one by onemy code freeze on debug after this, but when I set th...
Hi all, I'm having a trouble programming my F303K8 board on my Windows 10 laptop. It will power on (LD2), but it will not connect to the computer (LD1 blinking slow red). The laptop does not detect any device being plugged or unplugged, there is noth...
I try to use the SAI on the STM32F469 Discovery Board in DMA Double Buffer TX Mode. The Interrupt is working and the buffers too - but there are no data arriving at the SAI ADR Register. My init function is:HAL_DMAEx_MultiBufferStart(&hdma_sai1_a, ...
I can send CAN BUS TX Messages to a reader and I can see my data very well.But I can not get (receive) data from another CAN BUS Unit. (Doesn't read data)I do not know what is wrong with my code?Could you please help me about it?Thank you./* USER COD...
Hi,Can someone please help ?Has someone got USART Peripheral with DMA transfers working on the STM32H743ZI2 ?I have been trying to get DMA transfers to work on the H743. The DMA stalls after the very first DMA transfer and stays there itself.Searchin...
i have a program with a BIG lookup table. The program compiles fine except for if i reference the lookup table, then it quits with one error and doesn't tell me what the error is. How can i tell how big the compiled program - would be - with the look...
