STM32 MCUs Products

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Forum Posts

Tim interrupt?

Posted on November 12, 2012 at 17:22I need that display that I put on my stm32f4 Discovery is updated every second, I thought to do so through an interrupt TIM, but I do not know how to configure to work as TIM clock! can you give me some suggestion...

orn by Associate II
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problem with the dimensioning of the resistors pull-up?

Posted on November 13, 2012 at 21:25 Hi, I have enabled external interrupt (EXTI) by connecting to pin PA4 a button, with its pull-up (I also tried the pull down) but when I pressed the button sometimes is performed twice Iterrupt routine (or mo...

orn by Associate II
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lab manual for working with stm32f1xx

Posted on November 13, 2012 at 22:44With help from this forum, I've developed a lab course using the STM32VL Discovery board over the past year.   A draft of the lab manual is available athttp://www.cs.indiana.edu/~geobrown/book.pdfan overview of th...

FATFS name generator for txt file

Posted on November 13, 2012 at 21:20 Hello, i am working on project where i need to save array stored in stm32 to sdcard problem is i was able to make it work using project, but somehow i was unable to crate new file. Idea that i press b...

linas2 by Associate II
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WatchDog Implementation on STM32F0 Discovery

Posted on November 12, 2012 at 20:58The following is my watchdog code.  The watchdog is triggering and I am constantly find myself in the startup routine.  Why?  Here is my watchdog related code: //After Periph Clock set and before GPIO and NVIC set...

wbarkley by Associate II
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Interrupts priority

Posted on November 13, 2012 at 13:11Hi all Can higher priority interrupt interrupts lower priority in his execution? For example. When I am servicing DMA ISR routine with priority 0x01 and EXTI interruption with priority 0x00 if and only if happens....

DmA for dummies..?

Posted on November 13, 2012 at 18:46Hi. My name is Steve. I have some microcontroller experience with AVR, Stickos and Arduino and have recently bought an STM32F4 discovery kit as I am interested in its DAC , DSP and audio capabiiteies. I have some ...

sts0340 by Associate II
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STM32 DAC Monotonicity vs DNL

Posted on November 13, 2012 at 11:33I was planning on using an STM32F103RE in a design where the DACs would be part of a control loop, and will need to be used in 12 bit mode.  Unfortunately the DAC specifications in the datasheet show extremely bad...