STM32 MCUs Products

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Forum Posts

STM32F3 Discovery Quadrature Encoding

Posted on June 21, 2013 at 22:44I'm working on getting quadrature encoding working through either TIM1 or TIM8.  I searched the past topics on this forum, but I can't tell how mine is different/ why it isn't working.  I'm using USART to debug the co...

mattfox by Associate II
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Multiple math functions calling issue

Posted on July 27, 2013 at 15:46Hi, I've noticed weird problem when calling few math functions few times in a row or a loop like: c = sin(3.0)+sin(5.0)+sin(5.0)+sin(5.0)+sin(5.0)+sin(5.0)+sin(4.0); Actually I don't know what's going wrong but my app...

problem

Posted on July 27, 2013 at 10:02when i connect 16GB flash disk    ,  stop in  USB_Host.EnumState = ENUM_GET_FULL_DEV_DESCUSB_Host.gState=HOST_CTRL_XFERUSB_Host.gStateBkp =HOST_ENUMERATIONUSB_Host,RequestState=CMD_WAITbut when connect 4Gb usb flash d...

LSM303dhlc stm32

Posted on July 26, 2013 at 22:06Hi! please help to solve the problem. I use a compass and a compile-time compiler gives me the following:Error[Li005]: no definition for ''SYSCFG_EXTILineConfig'' [referenced from C:\Users\Ëåâàí\ Error[Li005]: no defi...

where can i download the STemWin Library

Posted on July 25, 2013 at 08:44i wanna used the STemWin Library to display the picture and video,i download the AN4323 Application note,it introduce  how to use theSTemWin Library ,however ,i google it, but find nothing.i used the STM32F439 to cont...

aizhixi by Associate II
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Attn Clive.. and a few questions

Posted on July 26, 2013 at 22:15Sorry had to do this, but this is a request for Clive. There is no PM capability on these forums. If possible, Clive, could you please drop me a mail at admin AT 43oh.com I'd be grateful if you do. This does not rela...

STM32F373 USB DFU Bootloader

Posted on July 25, 2013 at 23:25I'm working with a new device, and I'm trying to load to flash memory via the bootloader in DFU mode.  I'm pretty new to this whole idea, so I'm somewhat confused as to how this works.  From the documents I can find p...

mattfox by Associate II
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  • 5 replies
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First boot on new target board

Posted on June 19, 2013 at 18:30Powered up newly designed board today. Of course it seems not to work. :( Its based on Discovery board. I currently have only the STM portion populated. The Oscillator pins are both low. Using a 8 Mhz Xtal and 20 pf c...

VE7HR by Associate II
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problem with leaving from standby mode

Posted on July 26, 2013 at 12:06 Hi, i've got a problem with leaving from standby mode, both by RTC Alarm and WKUP pin. This is my code:int main( void ) { #ifdef DEBUG debug(); #endif prvSetupHardware(); GPIOC->ODR |= (u16)0x0040; PWR_EnterSTANDBY...

kkkuba by Associate II
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Save ADC Data in Flash

Posted on July 26, 2013 at 09:54Hi,    I'm trying to sample a signal with the ADC and store data in the Micro Internal Flash.    At the moment I sample the data with the ADC in continous mode and save the Data from ADC1_DR_Address with the DMA in RA...