STM32 MCUs Products

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Forum Posts

32F429IDISCOVERY RAM extension

Posted on March 20, 2015 at 15:02Hi,I am having a problem with RAM shortage on 32F429IDISCOVERY because of a complex processing algorithm. Generally speaking heap crushes into my stack and hard fault is called. The algorithm that I use cannot be cha...

Can you trust Real-time clock powered by Supercapacitor

Posted on March 26, 2015 at 11:38Is there a way to tell if the reading in the real-time-clock is valid - i.e. that the clock has kept ticking since the last time it was set?My board has a STM32f405, and its backup domain is powered by a Supercapacit...

Danish1 by Lead III
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  • 3 replies
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STM32F429 Discovery kit pinout

Posted on April 29, 2014 at 15:01Hello, I have to develop a board to attach to an STM32F429 Discovery kit to control a comercial display. In the design i found that the pins of the discovery kit give only a certain funcionality. Is not other way of ...

alimed by Associate II
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  • 8 replies
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UM1724, wrong pin

Posted on March 27, 2015 at 11:43DocID025833 Rev 7, pg 25/63, description of SB62, SB63: Reads (twice):   ... to D1 and D0 (pin 7 and pin 8) on Arduino connector CN9 ... Should read:   ... to D1 and D0 (pin 2 and pin 1) on Arduino connector CN9 ...

Image Capture using STM32F2

Posted on March 27, 2015 at 05:21I have developed a stm32f207 board for my own application. I have interfaced a 14 bit grayscale camera using DCMI. I'm then transferring this image to the SRAM using DMA. The SRAM being used is the same present on th...

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How to watch variables in CubeMX

Posted on March 23, 2015 at 08:53Hello. I'd like to know how to refer values of variables. My understanding is all of variables are seen in a variable scope when I stop a program, but at the moment, I can't look at some variables I defined. Could so...

STM32F411 I2S1 supply dma?

Posted on March 26, 2015 at 09:02Hi,I want use I2S function on ST411I2S1(SPI1) can work on DMA Mode?I check DMA1 request mapping Only have I2S2 , I2S3 but in my design need SDIO (SPI2,SPI3) #i2s-stm32f411

cyan1650 by Associate
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Is stm32f4xx_gpio.c broken - missing BSRR register?

Posted on March 26, 2015 at 15:48Dear All, I am new to an  embedded world in general and to the STM32F4xx controllers in particular.  In order to learn the  trade, I got the STM32429I-Discovery board and along with the hardware, I have installed: ...

darek by Associate
  • 933 Views
  • 1 replies
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STM32F103G: Runtime clock changes

Posted on February 10, 2015 at 14:30Currently I'm developing a battery powered application with lcd and stm32f103 (1MB).Because a full screen update is ugly-slow on 32 MHz I'm looking for ways speed up to 72 MHz. But since this doubles the current c...

Jeroen3 by Senior
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  • 6 replies
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trying to understand EXTI example code

Posted on September 20, 2012 at 03:51I have EXTI example running on my stm32f4 board but I am having trouble changing the PIN which causes the interrupt. Here is the initialization method:void EXTILine0_Config(void)  {        GPIO_InitTypeDef   GPIO...

arro239 by Senior
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  • 16 replies
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