STM32 MCUs Products

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Servo Motor Frequency and Duty Cycle Problems stm32f407

Posted on October 14, 2013 at 12:47Hi, I am trying to drive a servo motor(for this case, TowerPro MG90S), so I want to get 50 hz frequency and duty cycle between %5 and %10. My board is STM32F407 Discovery. I tried to change Peripheral Lib example a...

guray by Associate II
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Detailed Timers information for STM32F3

Posted on October 09, 2013 at 15:46Hi all,I'm looking for detailed Timers Information: block schemes, detailed descriptions for every kind o timers, timing diagrams etc... for STM32F3.I've found only general information on http://www.st.com/st-web-u...

Debugging of my STEVAL-CCM001V2

Posted on October 14, 2013 at 12:38Hello together,I got an STEVAL-CCM001V2 evaluation board. This Board has an TFT-Display and some touch-keys to control the function of the board. The board has an micro-SD card slot and you could watch pictures on ...

STM32F405 - No clock on SPI

Posted on October 14, 2013 at 11:27Hello,I've some problems with the SPI interface of the STM32F405 microcontroller. I hope someone could help me.I've a F-RAM connected to the STM32F405 via SPI. I'll checked pin connection and GPIO configuration wit...

aurelie by Associate
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Understanding the purpose of ADC_SMPR

Posted on October 13, 2013 at 06:46Hi,I'm trying to understand what the ADC_SMPR register is used for.According to Reference Manual we have following control on the ADC conversion time:ADC_CR1 Register:Bits 25:24 RES[1:0]: ResolutionThese bits are w...

dimax by Senior
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  • 5 replies
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STM32F3 - ARM Cortex-M4 32-Bit MCU- SPI

Posted on October 07, 2013 at 21:54Hi, I am using the Discovery F3, I am trying to interface with an SPI port device which requires a 32 bit transfer and 8 bits for address, in the data sheet, the data size is between 4 and 16 bits. I would know if ...

SPI BSY flag

Posted on February 22, 2012 at 17:14Dear All, I have two separate STM32F103's communicating to each other by SPI. I've configured one as a master & the other as a slave. I'm using DMA to automate the SPI transfer. I've used the ST Library (3.5.0) e...

PWM signal prescaler

Posted on October 12, 2013 at 18:48Hello, in fact I've been working on the STM32F3 Discovery Board and I could generate a PWM signal. But there is still something I couldn't understand, which is how to calculate the prescaler value according to the ...

mehdi23 by Associate
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