STM32 MCUs Products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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Is it possible to use UART with more than one buffer?

I have no idea why this code is not working. I am sending chunks of a file with UART followed by short instructions of 2 bytes to tell the MCU whether another chunk is coming or to start playing the file.The MCU receives the first chunk without an is...

EYako.1 by Associate III
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  • 9 replies
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Resolved! Strange interrupt handler problem on STM32H7

Another day, another bug....I'm trying to use ADC3 with BDMA on H753. Started from some cube-generated code that assigned BDMA channel 0 to ADC3.Allocated memory in SRAM4. Added interrupt handler for BDMA_Channel0 and ADC3.When I start the ADC3, I hi...

Pavel A. by Evangelist III
  • 1673 Views
  • 9 replies
  • 1 kudos

STM32L0xx saw tooth current in permanent run mode

Hi,if I never call any wfi / wfe and run my stm32l0xx mcu in permanent run mode, I got a sawtooth shaped consumption current. In normal mode, where I call wfi, this is not a issue, but I'm curious.Any ideas where this comes from?Thanks & best regards...

aritec by Associate III
  • 515 Views
  • 3 replies
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Trigger DMA for SPI based on Timer interrupt

Hello,I need to sample an ADC at 20ms using SPI. I setup a timer interrupt to do this, but I would like to fill a double buffer at SPI_RxHalfCplt and RXCplt.My timer seems to be working correctly, however the Rx Half Complete Callback is being Called...

kcire L. by Associate III
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  • 3 replies
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Data to Store Array

I keep the important information in 32 byte. But every block have 32 byte .There are more than 300 block and every block have 32 bytes of data. So I've 32*300 byte data. How can I keep in the RAM successfully. Sould I Keep with array (uint32_t) or po...

DCtech by Associate II
  • 522 Views
  • 1 replies
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PLL startup problem

I'm using STM32F105RBT, and I'm finding that, in certain circumstances, the phase locked loop is failing to become ready.1) Boot (sysclk = HSI @8MHz)2) Set PLL with source=HSI(div2) and multiplier=93) Enable PLL4) Wait for PLL ready (waits forever he...

s_ by Associate III
  • 465 Views
  • 2 replies
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OctoSPI not working on STM32U5

Hello, i am trying to communicate with an MRAM memory (Micron) via octoSPI but i can't manage to make it work! i already looked at the ST code examples and i got the same configuration as the examples but it just doesn't work. Please help!PS: i am us...

SGUIG.1 by Associate II
  • 783 Views
  • 2 replies
  • 0 kudos