STM32 MCUs Products

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Forum Posts

STM32 Boot mode Pin functionality

Hi,I’m currently working with the STM32G491RE MCU and have encountered an issue related to GPIO pin PB6.In our normal user application, PB6 is configured as a push-pull output. However, we would like to understand its behavior when the device enters ...

Resolved! STM32H7 FMC - SDRAM byte and bit swapping

HiI am working on a project with an STM32H743 and a 32-bit SDRAMThe FMC signals are quite randomly scattered across the package and this makes layout quite convoluted and difficult. I'd like to swap byte-lanes and individual bits within each byte, fo...

JF999 by Associate
  • 207 Views
  • 2 replies
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Comp1 blanking not working inverted input

Hi,While working on the code for an STM32H7B0, I'm having issues with the blanking function of COMP1. Specifically, it works correctly when the comparator is in non-inverting mode, but if I invert the comparator's output (to detect falling thresholds...

garinus_0-1747737757678.png
garinus by Associate II
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  • 0 replies
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Resolved! does stm32f103c6tx support external loopback?

I wrote a code for this microcontroller to test the CAN protocol, and it worked successfully in loopback test mode—data was transmitted and received correctly without using any external CAN transceiver. Then, I switched the CAN mode from loopback to ...

TIM13 and TIM14 PWM output issues STM32H562

Hi All,I have a project that is using the STM32H562. I am having an issue using tim13 and tim14 to generate PWM outputs going to LEDs. The project uses timers tim2, tim3, tim4, tim13, and tim14 for a range of different PWM peripherals. For all of the...

dlewis by Associate II
  • 645 Views
  • 16 replies
  • 2 kudos

STM32F407 I2S2 and I2S3 not syncronized

Hi, I have an STM32F407-DISC1 connected to an Raspberry PI via I2S. The clock frequency is about 3MHz. The STM is receiving as slave on I2S2 and feeding data to a ring buffer. When the ring buffer is half full transmission on I2S3 is started (as slav...