STM32 MCUs Products

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Resolved! UID_BASE access from STM32H745ZI CM4 Core?

I would like to access the UID_BASE (0x1FF1E800) register from the CM4 core, but I run into a HardFault. I checked the reference manual and page 137 says that memory map is reserverd for the CM7.Is there a way to read it somehow to map that System Me...

Beni1 by Associate II
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  • 2 replies
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Resolved! Software interrupt with STM32

Hi there,I'm trying to implement a software interrupt using the STM32L432KC. I want to trigger an interrupt when I reach a certain point in the code. Unfortunately I didn't find any helpful example.Once I tried to set bit37 in the IMR2 register.SET_B...

Battery status and sleep of stm32 processor

Hi, I am using stm32l0 series. my device will work with battery. I want to put it in sleep mode when it is not working so that the battery does not run out. Then I want to be able to see the battery status. But I have no idea how to do it. What I wan...

ZKURT.1 by Senior
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  • 2 replies
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Resolved! I2C problem (full story with pics)

Hello,I have a custom STM32F439VITx board running at 60MHz clocked from the HSI. I have three devices on I2C3, two of which function correctly, the third, an mb85rc64 non-volatile memory, fails on both read and write operations.The I2C is configured ...

0693W00000JMNgZQAX.jpg
DCarr.1 by Senior
  • 3744 Views
  • 13 replies
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Partial framebuffer SPI LCD best tearing effect strategy?

I ask about G071 exampke code, but nobody replies, then i try use more specific question. My test display is round 240x240 SPI LCD. TE signal is fmark .(one pulse per frame)In partial or block window send method RAM in display is updated on random pl...

MM..1 by Chief III
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  • 0 replies
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Resolved! STM32F030C8T6TR Reset continuesly time interval?

I place oscilloscope probe at reset pin of MCU it get low reset continuously time period​I observed RCC​- CSR resistor which gives LSIRDY=1 AND IWDGRSTF=1 both are set How can I make them of and solve this reset problem?​Below attached images of MCU ...

0693W00000JMK8UQAX.jpg 0693W00000JMK8PQAX.jpg

Resolved! Best way to use DMA without knowing size of SPI transfer ?

Hi,device : STM32G473VBT6What is the best way to process SPI data when we don't know how many bytes will come from the SPI master ?I use the SPI in full duplex slave.The problem with DMA is that the DMA buffer is circular, where my processing functio...

sde c.1 by Senior II
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  • 9 replies
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