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How to unlock SWD on STM32F0?

Posted on August 09, 2013 at 10:15Hi, I accidentally configured USART2 to pins PA14 and PA15 with PA14 being also SWCLK. Now I can't upload code anymore. I read about putting the MCU into bootloader mode by setting BOOT0 to Vdd. But this doesn't wor...

mmensch by Associate II
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SPI need help

Posted on July 16, 2013 at 05:15 So ive been trying to get the SPI interface working. Here's what i have so far. void SPI_Setup(void) { SPI_InitTypeDef SPI_InitStructure; SPI_I2S_DeInit(SPI1); SPI_InitStructure.SPI_Direction = SPI_Dir...

timothy by Associate II
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need STM32F0 SPI Slave Tutorial / working example

Posted on August 08, 2013 at 19:23hi all.. i'm already searching for hours, and can not find a working example / tutorial for SPI Slave on STM32F0. Anyone ?thanks before... #need-stm32f0-spi-slave-tutorial

septijo by Associate II
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STM32F0-Discovery (input capture)

Posted on June 10, 2013 at 12:44  The original post was too long to process during our migration. Please click on the attachment to read the original post.

Internal OpAmp and ADC sample time

Posted on August 08, 2013 at 12:28I need to adjust the STM32F303 ADC sample time to fit to the internal OpAmp. I can't find any specification of the OpAmps output impedance to take it in account as R AIN for the sampling time table #66 in the data s...

v_ by Associate II
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Fatal error: Can not connect to J-Link via USB. Session aborted!

Posted on August 07, 2013 at 23:41I have a STM32 Discovery Kit.  I have set up the IAR compiler.  Succesfully compiled code.  However when I try to download the the Discovery Board I get the following message... Wed Aug 07, 2013 14:21:48: Fatal erro...

greg by Associate II
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STM32F103VET6 ,converts RGB/YCrCb image data to JPEG

Posted on August 07, 2013 at 10:12Can you help me a little bit?My thesis is about writing the code for image compression and decompression on STM32F103VET6. I have a RGB file and my tasks are writing 1 code to convert the RGB to a JPEG and writing 1...

amore by Associate II
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STM32F4 Discovery + DM-STF4BB + 180 deg.

Posted on August 08, 2013 at 16:42Hi,I've bought those two boards, but for about 20s DM-STF4BB was rotated 180 deg. so +5V and +3V3 goes somewhere where shouldn't. Do you think DM-STF4BB survived?Second question: from where I can download examples f...

zenek by Associate
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I2C busy flag

Posted on August 05, 2013 at 12:10 Hello, I am trying to connect two boards using I2C. I have already configured one as master but whenever I send the start condition the I2C bus is busy. Maybe I am wrong in the initialization of the GPIO...

edgar by Associate II
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NVIC - Defining software interrupt

Posted on August 08, 2013 at 08:37 Hi , I want to add a new interrupt to the system , i know that the NVIC can support up to 256 interrupts , currently in my evaluation boad ( stm32f4g-eval) there are only 81 used . So i added a new on...