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F030F4 - not programming with Vcc>3V

Posted on February 28, 2015 at 20:37Hello,I am facing very strange behaviour with uC mentioned in the topic. After connecting the microcontroller to the 3V3 supply and the SWD (IO, CLK, NRST and GND) on the Nucleo board, I get this error in ST-LINK ...

k239955 by Associate
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  • 3 replies
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Barcode Scanner in USB HID

Posted on July 16, 2014 at 15:31Hello everybodyI'm trying to use the stack usb hid to talk with a barcode scanner. When I connect the scanner it is classified as a keyboard, but does not generate the interrupt events. Does anybody know why?thanks ...

STM32F429 Silicon Revision 3 ETA?

Posted on August 21, 2014 at 20:43Greetings all,I was wondering if there was any ETA on Silicon Revision 3 of the STM32F429. I'm working on a product that has 32MB of SDRAM and 16MB of NOR Flash (http://www.emcraft.com/products/224).The work-around ...

malcolm23 by Associate III
  • 2077 Views
  • 9 replies
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STM32F$ DMA mapping

Posted on March 01, 2015 at 12:00I am a bit confused by the channel mapping description in '' DocID018909 Rev 8''  and would appreciate some addditional explanations. In ''10.3.3 Channel selection''  we have the following text ''Table 42 and Table 4...

stst9193 by Associate II
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  • 2 replies
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recording voice in a PC

Posted on March 01, 2015 at 02:58Hello,Well I am new at embedded systems development. I am using STM32F407 and I tried the sample of voice recording provided by ST. But I want to store the record.wav on my PC. So how can I do that?Thank you for answ...

marwa by Associate
  • 527 Views
  • 1 replies
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Timer Problem

Posted on February 28, 2015 at 23:37Hi,I'm having a problem with timer 2 on the stm32f407 discovery board.I want a frequency of 1khz but I can only get 1ms before entering, for the first time, in the ISR. After that, I get Stuck on the ISR and becau...

pedro by Associate II
  • 682 Views
  • 4 replies
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Fatal error: Failed to read CPUID for Cortex device

Posted on July 08, 2011 at 11:46I am using Micro controller: STM32F103RCT6TR IDE: IAR Embedded workbench Debugger: J-Link ARM   When I burn it I am getting this error TotalIRLen = ?, IRPrint = 0x..000000000000000000000011 Fatal error: Failed to ...

pradp by Associate II
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  • 13 replies
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STM32 Discovery, RC Receiver, PWM Input

Posted on February 07, 2014 at 08:08 Hi, I want to acquire a PWM input from a Futaba RC Receiver :http://www.futaba-rc.com/systems/futk6000.html Using this input I would like to test it out by varying the brightness of the onboard LED. ...

System clock configuring with stm32cube

Posted on January 02, 2015 at 11:44HelloI have 2 questions :1 - According to this library and sample examples , HAL_Init() function is called at the start of the main() that configures the systemtick timer for generating 1ms interrupts , but after t...