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Stepper motor

Posted on July 20, 2009 at 09:22Stepper motor #stepper-motor #stepper-motor-driver

finnb by • Associate II
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  • 6 replies
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bootloader stm32F4

Posted on February 01, 2012 at 13:30Is There anyoneWho Cangive methe algorithmofabootloaderSTM32F4andhow could Iwrite my own one,I find a lot of  difficulties:( plz help me

meryouma by • Associate
  • 409 Views
  • 1 replies
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how to use timer _ interrupt

Posted on January 26, 2012 at 17:58i am beginner about programming on  stm32l discovery board.  this is my first time  programming on stm microcontrollers.  I can open led. close led.  i can use lcd on it. but i want to  do that.i have   int i=0;   ...

accounts by • Associate II
  • 1487 Views
  • 8 replies
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SPI TXE flag interrupt

Posted on January 31, 2012 at 06:01I'm using the SPI TXE interrupt.  My ISR simply checks to see if there is anything more to transmit in the buffer.  If there is, it sends it, moves the buffer pointer, and returns.  If there isn't anything left to ...

shannon2 by • Associate II
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  • 4 replies
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STM32F4Discovery / RS232 CABLE

Posted on January 29, 2012 at 22:03Hi I'm a new STM32 user . I'm wondering how to send data from the computer to the stm boardusing the RS232 cable .

DMA desc. in Ref. Manual STM32F4: Possible misprint/error?

Posted on January 31, 2012 at 21:46In Ref Manual DMA configuration, many register bits have the condition: ''can be written only if EN=0''. This is ok from my side. But the last two bits in the list, FTH (Fifo Threshold), have the condition: ''can b...

flyer31 by • Senior
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  • 0 replies
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Hard fault with BFAR=4000010 (STM32F2)

Posted on January 31, 2012 at 19:46Hello,I have a hard fault when running my code, and the result of the hard fault is :[Hard Fault Handler] R0  = 4000000 R1  = 1 R2  = 20003fe0 R3  = 40013c00 R12 = 0 LR  = 8014acd PC  = 8019474 PSR = 100022c BFAR= ...

root by • Associate II
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  • 1 replies
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USART DMA use with H/W flow control

Posted on January 24, 2012 at 17:15Hi All, I would like to use DMA to service a UART that I am implementing (RX and TX). My project has 2 bi-directional data ports (including the UART) which have different data rates (up to 512kbps). I have to use h...

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