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Resolved! How to enable GPIO inputs for INTERRUPT MODE ?

The H745 Datasheet says General-purpose input/outputs : Up to 168 I/O ports with interrupt capabilityYet, every pin I select as GPIO (ex. PORTC.13 (PIN E3)), only lists INPUT or OUPUT options, but no Interrupt mode.If I bypass the Stm32CubeIde 1.3.1'...

bnguy.1 by Associate III
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  • 3 replies
  • 2 kudos

Stm32h7 vddldo on non bga packages

Hello, I was looking for an stm32h7 part where I could provide voltage to the internal ldo from a vddldo pin to achieve lower power consumption using an external smps. I'm looking at the h743 lineup but cannot find any package with such exposed pin e...

AAnci.1 by Associate II
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  • 1 replies
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Resolved! I am usinng STM32H7 nucleo board. I want to generate 20KHz pwm wave. How can I control the resolution (that is a value from 0-10000 that corresponds to 0-100%)?

 So I adjusted the ARR and Prescalar values to adjust the pwm frequency(20KHz). Timer Clock is 200MHzI want to change the resolution in the run time with a function. How can I change it?Changing the ARR value will change the resolution?Thanks in adva...

VRapa by Associate II
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  • 4 replies
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QUADSPI timings to read, write, erase flash IC

Hello,I've a MT25QL128 IC interfaced with STM32F767 controller on QUADSPI. there is external crystal of 8MHz. I want to check timings req for read, write and erase the flash IC, so that I can write some data into flash. I've referred application note...

AShel.1 by Associate III
  • 1088 Views
  • 6 replies
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Resolved! Overcoming SPI speed limitation on H743- inspiration needed

I'm setting the SPI input clock for the port I'm using at 50MHz to allow SPI speeds up to 25MHz for use with an SD card under SPI. However, this gives a minimum speed of 50MHz/256 = 195KHz and this is too fast for initialising some SD cards. I need t...

PMath.4 by Senior III
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  • 4 replies
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Flash Sector Resets After Reading for No Apparent Reason

I am writing an application and bootloader to STM32H7.I append some data to the end of the application. My bootloader needs to be able to read this appended data.When my bootloader first writes the application via (erase->write to memory).When the sy...

AAgar.2 by Associate III
  • 884 Views
  • 2 replies
  • 0 kudos