STM32 MCUs Products

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STM32 Timers + Interruptions - Error

Posted on August 28, 2013 at 12:46 Hi, I set an interruption handler for a timer. Each time it calls the handler I change the state of a IO. But I'm getting problems for frequency above 80kHz. If I set the period to: TIM_TimeBas...

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ee06091 by Associate III
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Need information about ADC's external impedance

Posted on August 28, 2013 at 11:17Hi everyones,In the datasheet for STM32F407xx, in the electrical characteristics part (12-bit ADC characteristics), they deal with the Rain value. they define it like that : used to determine the maximum external im...

USBH_BulkReceiveData problem

Posted on August 28, 2013 at 10:30Hello all,I am using an stm32f105rc as an usb host to manage a cp2102 with freertos and st host stack.I found a problem with USBH_BulkReceiveData: sometimes it issues two bulk requests so I miss a byte.The connectio...

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mzennaro by Associate II
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STM32L-Discovery SPI to ADS1118

Posted on August 28, 2013 at 08:41The original post was too long to process during our migration. Please click on the attachment to read the original post.

STM32F37x SPI FIFO and DMA

Posted on August 26, 2013 at 09:41Hello I tried to migrate a working SPI master from a STMF20x device to the STM32F37x device. The SPI master should write and read 8bit data to some SPI memory devices (EEPROM or flash) by using DMA. Attached is the ...

loeffel2 by Associate III
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Atollic PC standalone debug

Posted on August 28, 2013 at 04:01Is it possible to run a stm32f4 project with Atollic TrueStudio without a board? Likefor 8 bit microcontrollers? That is a limitation of Lite Version? 

STM32F407 and TDM or multiline I2S (DAC/ADC)

Posted on August 27, 2013 at 23:08Hello! I've been wanting to increase the ADC/DAC setup in my design using the STM32F407 chip but I am having a hard time understanding what specific functionality I can use to get more than 2 in / 2 out over a singl...

enc0der by Associate II
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STM32F0 Discovery PF0 issue

Posted on August 27, 2013 at 18:46Hi thereAccording to http://www.st.com/st-web-ui/static/active/en/resource/technical/document/user_manual/DM00050135.pdf PF0 is configured as GPIO.I didn't change any solder bridge settings but I cannot get access t...

ei3hmb by Associate
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[stm32f3discovery]jumpy sensor reading (megne and gyro)

Posted on May 16, 2013 at 23:25Hi, i'm reading the sensors on my STM32F3-discovery, and i've found out the reading arequite ''jumpy''. That means gyro and magnetometer value have consistent change (>1024) aven when the board is static. notice that a...

bifrost by Associate II
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