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What is the purpose of OSC32 in STM32

I am designing my first PCB. I am working on the project that needs low power consumption. For this we chose STM32L031G6U6 microcontroller. After collecting some measurements, the CPU will be put into sleep mode and wake up every minute or so for a f...

LPetr.1 by Senior II
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Clear SPI Rx buffer using DMA and resume receiving.

Hello. Two NUCLEO-G431RBs are used for SPI communication.One is used as SPI master and one as SPI slave, and the pins of SCK and MOSI are connected to each other using jumper cables. Communication works fine most of the time.However, when the other p...

TKawa.9 by Associate II
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  • 1 replies
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Reading RPM from Motor using hall encoder

I am trying to implement a code that can read the velocity of a DC motor with built in encoder. I am using STM32 F446RE and a CQrobot motor equipped with an Hall encoder.. specifications below:http://www.cqrobot.wiki/index.php/DC_Gearmotor_SKU:_CQR37...

totino5 by Associate
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Resolved! DMA access on M7 Device

I'm using a STM32H745 MCU, with two processors, one of which is an M7. With the M7 I have problems with the DMA, I have seen that it is a very discussed topic on the internet, where there are many solutions, but I still have some doubts: I would like...

FMass.1 by Associate III
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  • 1 replies
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CANBUS Working on Loopback but not in normal

I am trying to set up a CANBUS connection between two STM32L4 Microcontrollers and while having has been setup correctly and none of the microcontrollers are sending error messages I cannot seem to get a Receive message from either CAN transceiver.Th...

External power supply STM32L432KC

Hello,I was experimenting with the L432KC board. While connected to the computer everything worked fine, but as soon as I tried to use an external power supply everything stopped working. More specifically the board's led LD1 slowly flashes when conn...

Resolved! Fluctuations in ADC value of STM32H743 MCU

Hi,I have been working with STM ADC’s from quite a long time. I had used STM32F373 and F4 series MCU ADC’s earlier for my applications. As, now my application requires huge amount of RAM, memory and computation speed I have shifted to STM32H743 MCU ....

James1 by Associate II
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  • 26 replies
  • 2 kudos

DMA - from SPI to DAC - 16 bit

Hi,I use DMA for transfer data from external flash memory to DAC for playing sounds - in 8 bits mode like that:1) TIM6  gives impulses to DMA_1 - which transmit  dummy byte to external flash in 8 khz intervals (Fsampling of sound). External flash alw...

JR2963 by Senior II
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