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stm32f407 mem to mem DMA with different Sizes

My data has zeros every 2 bytes.it's like this: 0x55 0x55 00 00 0xaa 0xaa 00 00 0x33 0x33 00 00 ......I want to remove these zeros with address increment feature of DMA.I wrote a configuration for stm32f107 DMA and removed these zeros without problem...

How to calibrate STM32L412 ADC

I have a STM32L412, I am using a 3V external reference but my ADC is not very accurate - it never reaches its full value, even though the voltage present is the same as the external voltage. I want to calibrate the ADC to see if it improves the perfo...

deep_rune by Associate III
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Resolved! SPI / DMA / D-Cache

HelloI'm confused about SPI in combination with DMA and D-Cache.I'm using the STM32H743ZI and KEIL uVision CMSIS Driver.In my opinion, the CMSIS driver has a weak point. It only sends data by HAL_SPI_TransmitReceive_DMA() if length is a multiple of 3...

Dual core STM32H745, runtime contexts assignment.

For peripheral configuration, CubeMX allows me to assign the same peripheral (ethernet, I2C, etc.) to both Cortex-M7 and Cortex-M4 runtime contexts. Say, for ethernet, what does it mean if i assign the peripheral to both? Since i'm allowed to select...

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BVu by Associate III
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Resolved! Infinite data transmit using SPI

I am testing with STM32F769 Discovery board to make video syncs (not vsync, hsync).I am using SPI module to make infinite clock and data.But, it seems not supported in normal and DMA transmit mode (there is delay between transmissions).How should i ...

SPark.28 by Associate II
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Resolved! stm32f4xx_it.c overwirtten if I update the configuration

I'm new to STM32 and am trying to get a couple of simple things working at this point. I am trying to generate and handle a GPIO interrupt on PA0 using FreeRTOS and I have no trouble with that. All the examples I've seen say to modify the ISR at st...

JHanc.1 by Associate
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  • 3 replies
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