STM32 MCUs Products

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Resolved! HAL_I2C_Mem_Write_DMA sends only one byte

The blocking version (HAL_I2C_Mem_Write) works nicely, now I'm trying to use HAL_I2C_Mem_Write_DMA. Here are the settings as given in the configuration tool.The resulting code generated by the configurator (I removed some comments for brevity):static...

0693W000004IGU0QAO.png 0693W000004IGR1QAO.png 0693W000004IGYfQAO.png 0693W000004IGhcQAG.png
iforce2d by Associate III
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Resolved! Possible to disable SPI clock output?

I'm using SPI to output a signal for addressable RGB LEDs, as described here. https://innomatic.home.blog/2018/12/24/ws2812sk6812-control-with-spi-and-dma/Since this signal requires only the MOSI pin, it would be great to be able to use the CLK pin f...

iforce2d by Associate III
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  • 6 replies
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I need help for setting the STM32H743 FDCAN as Calssic CAN

Hello I am trying to use STM32H743ZI (NUCLEO-H743ZI2) for classic CAN but I am totally confuse how to set the configuration. I am using 480HMz with 8MHZ(HSE) for CAN.Please advice me how to set the FDCAN for classic CAN.I attach the screenshot of Cu...

otcagon by Associate II
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  • 1 replies
  • 1 kudos

Where to find command table

Hi, ive been trying to understand how to program arm processors and I come from Arduino, but I never understood where the instructions that a machine understands come from, where are they all listen?

AMat.1 by Associate II
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  • 6 replies
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ARM processor instruction set

Hi, i would like to understand how to program arm processors in general but i need an in depth explanation or tutorial to show m ehow to find the commands or letter combinations( words) that make the MCU do something. if i were to compare written cod...

AMat.1 by Associate II
  • 1910 Views
  • 4 replies
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Resolved! DMA issues with dual-core STM32H745

I'm currently using the dual-core STM32H745, and am trying to utilize DMA's on both cores to R/W to/from shared memory. DMA's are only successful on the M4 cores, and always yield a DMA Transfer Error. I haven't done anything to modify the initializa...

TypeKazt by Associate III
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  • 3 replies
  • 1 kudos

Continuous watchdog reset on STM32F7

The STM32F767ZI on some of my boards has a strange behavior where is goes into continuous watchdog reset.- Could it be because of ESD? Or is there a known issue with the silicon?- What could cause the watchdog trigger?

Squanchy by Associate
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  • 3 replies
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UART communication problem

hi i'm trying to use the stm32H750 uart with Interrupt i managed to get it working but the message is a bit off ( alot ) here is a bit of the code uint8_t tx_buff[]=" "; uint8_t rx...

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bakhti by Associate II
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  • 11 replies
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Hi, I am trying to sett up an STM32f030 processor and tries to get the ADC_ExternalTrigConv_T1_CC4 to trig the ADC from TIM1.

I am using the old StdLibs to do this since I am (I thought I was) comfortable with these. Anyone that can point out some code showing how to do this in detail? Have been struggling with this for three days and begin to loose my faith in this.Thanks,...

TBerg by Associate II
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  • 3 replies
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