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Forum Posts

Using USB CDC to send float data

Posted on February 21, 2014 at 22:37Hi,I'working with USB to send data from my F3 Discovery to the PC. For that i used the CDC class. I managed to send few bytes of data using the routine below:uint8_t TabInt[6]={80,90,88,99,10,13};  uint8_t  *ptr_i...

STM32F103RBT6 basic requirement to load program with SWD

Posted on January 28, 2014 at 10:50Hi! I have been playing with a STM32f103rbt6 chinese board for the last few months, it's working well. I am using the SWD of my stm32F4 discovery to upload the program. Now i wanted to make my own board, so i desig...

jean2 by Associate II
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STM32F051 with SPI: no reception

Posted on March 04, 2014 at 12:10Hi,I have the SPI communication working but do not receive the answer of the slave. I can see the answer on the scope but not in the controller. Can anybody help ?My main.c/* Includes --------------------------------...

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PWM Signals

Posted on March 02, 2014 at 19:38Hi. I'm currently in a group who are building an ROV and using the stm32f100rb to controll 7 rc motors. The issue I'm having is when outputting a pwm signal to a osciloscop I get a very rough resolution. The signal i...

smvhauge by Associate II
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  • 6 replies
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STM32F429I Discovery LCD Pin disconnected/malfunctioning

Posted on February 21, 2014 at 13:29I have developed LCD driver for STM32F429I Discovery board using RGB565 (16bit) Pixel Format. My demo is displaying RED color filled rectangles by setting each RED pin (Total 5) one by one. i.e. 0x8000, 0x4000, 0x...

H UQ by Associate II
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  • 1 replies
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spi speed configuration of STM32L

Posted on March 04, 2014 at 00:42Hi all,I am playing with SPI examples of STM32L recently and would like to ask a simple question about the SPI clock rate.  When I read through the datasheet, it mentions APB1 and APB2 have maximal frequency of 32MHz...

STM32F4 UART programming

Posted on July 30, 2013 at 10:08I have managed to make Flash loader demonstrator work with my FTDI. Whenever I want to connect to my STM32F4 Discovery board I have to do that in two steps. Firstly I connect proper pins from FTDI to PCB, then I open ...

jernej by Associate
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software i2c not working..

Posted on March 09, 2012 at 16:41Want to read my LIS302 sensor with software I2C (bit banging)Hardware i2c works.Here is some code.Please help me with software i2c...http://pastebin.com/d0M9jRaY

hitsumen by Associate II
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  • 21 replies
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Lan8720 interrupt pin

Posted on March 03, 2014 at 16:35Hello everybody. I want to use lan8720 ethernet interface with the interrupt pin. But the interrupt pin is the same with the refclk out. So if I use anexternal 25Mhz clock, or the stm32f4 mco pin, need to connect the...

totti001 by Associate II
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  • 2 replies
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How to use DSP library with STM32L1xx on IAR?

Posted on March 02, 2014 at 16:14Hello,I want to use DSP library functions on STM32L1xx.STM32L1xx is using ARM-cortex M3, same as STM32F1xx. How can I include the DSP library (ST library or CMSIS library) to a project?Thanks #stm32l1xx-and-dsp-li...

zoharr by Associate II
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