STM32 MCUs Products

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Run code from SDRAM with STM32F4 (e.g. STM32F229)

Posted on November 18, 2014 at 14:14Hello, we are considering to use the STM32F4, probably the STM32F429 or STM32F427. For our application we would need to run the program from SDRAM. I was looking around for application notes, but could not find s...

stcom9 by Associate II
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I2C configuration tool, Clock configuration tool

Posted on November 27, 2014 at 14:38Hi,I am currently working with the stm32f030 MCU and I am trying to configure I2C timing and the MCU clock, peripheral clocks.I got this excel sheets from ST (what were they thinking?) where you can configure the ...

Error description in SPL

Posted on November 26, 2014 at 16:21So,  * Timing Parameters for write and read access if the Extended Mode is not used  Wrong!Parameter used for read operation.Check FSMC_NORSRAMInit( *p) from stm32f4xx_fsmc.c http://pastebin.com/3PpxUtbr it wi...

t2399 by Associate II
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multiapplications jump

Posted on November 20, 2014 at 18:19Hi, I'm trying to develop kind of a bootloader for STM32F4 (or other) family in a little different way than usual. I gave a look to the existing discussions and so far none of them was helpful for me. The idea is ...

Compilation with files from STM32CubeF4 on linux

Posted on September 06, 2014 at 09:02Hello all. I just got a STM32F429-DISCO board and compiled my first successful program. I'm working under linux compiling with the GNU toolchain for ARM. In order to be able to compile my program, I had to modify...

pgarista by Associate
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PWM OP MODE for STM32F103VBT6

Posted on November 27, 2014 at 13:51Hi,            i am trying to generate an Signal with 50 % duty cycle using PWM Mode 1 Timer 1 channel 1.Pls go through the code below.I can't generate any pulse at PE9 PE9 is used as timer 1 channel 1 PWM OP. Usi...

balu by Associate
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STM32F4 timer (Prescaler Value)

Posted on January 24, 2013 at 03:46Hi, I have just saw a program about a interrupt time. The program can let the LED on and off in a specified period. But I have some question about the prescaler value, can anyone help me to understand the prescale ...

kazafwing by Associate II
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RTC initialization

Posted on November 29, 2011 at 17:56 Our design is made with  a STM32F207ZG microcontroller and we have some problems with the RTC peripheral. We have an external 32.768 kHz oscillator (LSE).         Using the ST library, the initialization of the R...

math.h not in the firmware

Posted on November 27, 2014 at 11:15Hi,I am currently using the dsp library .I noticed that it need math.h library to run correctly.Unfortunately, i couldn't find it on the internet.Does somebody have a link?

d4ng3r09 by Associate II
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STM32F4 & Ethernet configuration (RMII)

Posted on November 27, 2014 at 11:25Good day,Given you use the RMII interface to the STM32F4 MCU does anybody know what the CR (clock range) needs to be configured to?  The RMA is not clear if the clock range configuration is for the MII interface o...

truhann by Associate II
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