STM32 MCUs Products

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STM32F0-Discovery with HSE

Posted on September 24, 2013 at 23:24I want to run my Discovery board with an external HSE soldered into X2 on the board. I ran the clock configuration tool and generated a new system_stm32f0xx.c which seems to be correct. It seems to still be using...

munger by Associate II
  • 795 Views
  • 4 replies
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STM32F107RC Ethernet minimal board

Posted on September 25, 2013 at 15:35Hi, I would like to use with Ethernet. I need to build minimal board. In datasheet I found: ''Ethernet MAC interface with dedicated DMA and IEEE 1588 support''. Is possible to connect RJ45 connector directly to ...

martin159 by Associate II
  • 1008 Views
  • 3 replies
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STM32F407 and i2c2 interrupt

Posted on September 26, 2013 at 00:02I am working on a project with the STM32F407 communicating to a 8051 micro with i2c.  I can read from the slave(8051) with no problems but when I try to send more than 3 bytes to the slave I get an ARBLOST error....

james by Associate
  • 291 Views
  • 0 replies
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STM32 USB library - CDC_Send_DATA()

Posted on September 25, 2013 at 20:09Hi all,Currently I'm working on an application that will call CDC_Send_DATA() periodically. However, if I call it too often, some packets will be missing somewhere in the middle.  Does anyone know the reason?  Th...

bypass/electrical short STM32F0 Discovery

Posted on September 25, 2013 at 14:17Hi,I'm programming the STM32F0Discovery. Well, I made a short circuit between the 5V pin and the GND pin while measuring. Now I can't programm the board anymore. The COM-LED (LD2) is turned off all the time and I...

Dead time accessed when?

Posted on September 25, 2013 at 09:07HiI need to be able to adjust the dead time of one of the advanced timers in an F4 during execution.I can easily write to the BDTR register but it seems a bit dangerous to do so without knowing when the timer wil...

marbel by Associate II
  • 436 Views
  • 1 replies
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Unique 96bit ID meaning and its shortening

Posted on February 08, 2013 at 08:06Hello. I have a question concerning processor 96bit UID. I understand that this number is ST unique number and I would like to use it as a board identification in production. But the number is farly long for expre...

kinovicf by Associate II
  • 4534 Views
  • 11 replies
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do you need to explictly set SCB->CCR |= SCB_CCR_STKALIGN;

Posted on September 25, 2013 at 14:42''Immediately after stacking, the stack pointer indicates the lowest address in the stack frame. Unless stack alignment is disabled, the stack frame is aligned to a double-word address. If the STKALIGN bit of the...

denis by Associate II
  • 500 Views
  • 0 replies
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