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Forum Posts

Monitor interrupts activity with SWD only

Posted on August 28, 2012 at 11:27Hello, I'm suspecting my interrupts to trigger a lot more than necessary ... What is the less intrusive and quickest way to monitor interrupt triggers with only SWD (no SWO) ? Thomas.

root by Associate II
  • 368 Views
  • 1 replies
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Assign Value on STM32

Posted on August 27, 2012 at 22:25Hi, I used uint8_t CSD_Tab[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; to initialize an array. But when I use IAR EWARM to watch the content in this array, the value is always unchanged. Any ideas? Thank you

chai by Associate II
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I bricked my brand new VLDiscovery board

Posted on August 11, 2012 at 09:46About 45 minutes into playing with my new VLDiscovery board, I seem to have bricked it. I downloaded a ''bad'' program onto the thing and now it's telling me that the device is protected and resists all my attempts ...

andyturk by Associate II
  • 2270 Views
  • 20 replies
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Fatfs SD card on STM32152L-Discovery board

Posted on August 27, 2012 at 15:40Hi, I am working on read,write to a SD card using SPI method on board STM32152L-Discovery board. Now I can create a folder, create a file, and read, write. But when I want to get the capacity of the SD card, no matt...

chai by Associate II
  • 636 Views
  • 3 replies
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F0 discovery can not connect

Posted on August 03, 2012 at 04:44i am using the F0 DISCOVERY, after down load my build, when i want to down load again,the ST-LINK reports 'no target connected ', i reinstalld the driver, but it is not useful, what should i do

lbheibai by Associate II
  • 1352 Views
  • 9 replies
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USB disconnect without pullup circuitry

Posted on August 26, 2012 at 13:35The device has a fixed pullup on D+ (1.8k resistor to 3V). In software I am switching back and forth between a USB DFU bootloader and a non-USB application. My problem is that after returning to the bootloader, it i...

To synchronize timers

Posted on April 22, 2012 at 20:52Hi, working with the STM32F103 processor, I`m searching for a solution to sychronize a STM32 timer to an external input signal. This signal has a constant frequency of e.g. 24Hz or 30Hz. Using a input capture timer...

mfcprog by Associate II
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  • 10 replies
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Undefined reference to `sqrtf' - STM32F4 DSP library

Posted on August 17, 2012 at 18:13Hi there.I am trying to get the STM32F4 DSP library to work together with the CoIDE (http://www.coocox.org).Currently I have compiled the DSP math library with GCC using Keil, where I opened the GCC library project....

Systick Priority using USB FS library

Posted on August 25, 2012 at 11:19hello eveyone, I am currently using USB FS library and also systick interrupt to time some operations in the program. USB library works fine when used, and systick also works fine (used basically to mae some delay F...

longchair by Associate III
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