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Forum Posts

How is receiving of a i2c byte initiated?

Posted on June 27, 2014 at 04:05Hi, I would like te receive 3 Bytes. Therefore I am sending a start, the I2C address of the slave, the register address, a repeated start, the slaveaddress again, then I receive the 3 bytes and finish wish a stop. So ...

Loading software to ST board

Posted on June 27, 2014 at 00:54Hello Everyone,Our goal is to compile an AudioSpeaker Demo included in the STM32_USB-FS-Device_Lib_V3.3.0. The IDE being used for this project is the IAR Embedded Workbench for ARM version 7.20.1.7307, IAR Embedded Wo...

STM32F303xC CAN configuration.

Posted on June 20, 2014 at 17:12Hello everyone, i am trying to implement CAN on my application. It is the first time i am dealing with it. I've read a lot about protocol itself, and looked through a lot of examples which are posted in this forum. Th...

STM32F303 ADC/DMA

Posted on June 26, 2014 at 19:25I am using all 4 ADC's with 4 channels used on each. ADC 1 is on DMA1 and ADCs 2-4 have channels on DMA2.  All 4 ADC's run off timer15 at 1Khz.  The problem I am having is that I only get DMA interrupts for ADC 3,4 a ...

msinger by Associate
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  • 5 replies
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USB CDC bug in the new STM32Cube FW_F4 V1.2.0 library

Posted on June 22, 2014 at 12:16There is a bug on the latest STM32F4 usb cdc code. Update the STM32CubeMX and the STM32CubeF4 library to the latest versions. Create a new project and enable RCC HSE with external crystal and HS usb in device mode (in...

sdim by Associate III
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  • 4 replies
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STM32F105 problem jumping to application

Posted on June 23, 2014 at 15:35I have problem with jump to application by bootloader. The device used is the STM32F105R8. The bootloader does not jump in the application,it crashes in the function ''Jump_To_Application()''. The code of the bootload...

u23 by Senior
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  • 14 replies
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Update Usart baud rate register during communication

Posted on June 26, 2014 at 17:01Hello,I would like to know what happens if I modify the USART baud rate register value very little (+-3%) during a communication. Is it safe or is it essential to stop the communication before updating the BRR value e...

nicolas23 by Associate II
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  • 5 replies
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DMA2D configuration error

Posted on June 25, 2014 at 02:28 I'm trying to do a simple memory to memory transfer with the DMA2D, but the configuration error flag is being set when I start a transfer. Here is the initialization code: uint16_t *imageBuf = (uint16_t*)0...

External trigger for TIMER 3

Posted on September 03, 2013 at 13:00Hi,I have a working piece of code that takes an input signal on tim3_ch2 (pc7) and outputs a pulse on every 390 counts on tim3_ch1 (pc6). However, i need to use tim3_ch4 (pc9) as input pin for clock signal. I tri...

asecen89 by Associate II
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  • 6 replies
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