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Forum Posts

STM32F746 Flash Memory Organization?

The datasheet for the STM32F746VET shows that it has 512k bytes of Flash. But the Reference Manual for the STM32F74xxx shows 1Mbyte of Flash (sectors 0 thru 7). Do we just assume that sectors 6 and 7 don't exist? This seems a bit vague.

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Resolved! STM32L476 SPI NSS bit not functioning

Using an stm32l476rg nucleo as a master device and SPI2 peripheral. The following bits have been set in order for the NSS bit to stay high normally and then be pulled down during communication (according to the reference manual).MSTR = 1SSM = 0SSOE =...

ZHama.1 by Associate II
  • 645 Views
  • 2 replies
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Programming an STM32F769NI to count sheets of paper

Hello! I've recently bought that kit and I would like to use the "Paper Cutter" interface developed by Embedded Wizard to display the number of remaining sheets. Honestly, as I am a newcomer in that field, I don't really know how I could do that, par...

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LleytoN by Associate II
  • 418 Views
  • 1 replies
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the phase of PWM output signal with HSE clock edge

Hi In my system using STM32F407, there is a period PWM signal output triggered by external comand. However we find that the phase between PWM singal edge and HSE edge is changed cycle by cycle, is F407 capable to config the phase stable?when received...

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jhl14 by Associate II
  • 480 Views
  • 0 replies
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Problems with USART transmission using DMA

The problem is as follows, when transferring data via USART, without using DMA, the data is sent (in an attachment). When I start using DMA transfer, no data is sent (in an attachment). Maybe I am doing wrong DMA settings in the USART configurator? I...

VVlas.1 by Associate II
  • 1728 Views
  • 3 replies
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When will Reference manuals really be usable?

I write code and manuals for 36 years and I've learned that those are too often written by a person who fails to put himself in the readers position. A reader who's not familiar with the topic otherwise the material was not required in the first plac...

EGi by Associate III
  • 824 Views
  • 3 replies
  • 4 kudos

BxCAN Frame and Form Errors Help

Hi Stm Forums. I'm a college student working on my capstone project that requires CAN bus communication between two STM32F1 and one STM32F4. For a little background each of the STM32F1's job is to read in sensor information, filter, and send that dat...

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AMont.4 by Associate
  • 1092 Views
  • 0 replies
  • 0 kudos