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Odd DMA CCR behaviour

Posted on February 19, 2016 at 06:44Hi all,I am writing a program for the STM32F030 in which I want to update TIM3->CCR2 using a DMA transfer. This transfer will be triggered to control PWM waveform generation, although I have simplified the code be...

luke2 by • Associate II
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STM32F7 DISCO - Storing data in NOR

Posted on November 12, 2015 at 19:10 Hello everyone, I just started using the STM32F7-DISCO board and i wanted to start with writing a small UI app with a single image, with the image data being stored in the NOR flash. but the applicatio...

ahmed2 by • Associate
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  • 2 replies
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USART example with interrupt (optional DMA)

Posted on November 26, 2012 at 15:22Hi, I tried and I failed, now I'm asking here If someone please could provide an USART Data transmit and recieve example which uses interrupts (and if possible DMA for large datatelegrams ~ 5Kbyte). I'm using the ...

ersan by • Associate II
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  • 5 replies
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SDHC SPI STM32 Definitive Question

Posted on January 26, 2016 at 23:53Hey everybody. I`ve been browsing the forum for a while trying to solve my problems with SDHC, but I can't find an answer. I have this 4gb SDHC card and it won't initialize at all! I just can't make it work. It wor...

SPI1 and SPI2 together ?

Posted on February 17, 2016 at 23:14 Guys, Can I use SPI1 as VS1053 and SPI2 as SDcard, It seems that after VS1053 initialized, it can not read SDcard ?? why is that ? Thanks void Init_FAT() { char FAT_cnt = 0; if ...

Error while erasing flash ROM

Posted on February 18, 2016 at 06:56I am using STM32F427IG microcontroller. The Flash Rom is connected to the FMC Controller.  I am getting error when I tried to erase a sector of flash memory. The error status flags- PGSERR, PGPERR was set. It work...

gigo by • Associate
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STM32F4 DSP IIR Filter

Posted on February 18, 2016 at 18:37Hello everyone, i try to make iir filter on STM32F4. Here how ive written it:float Sum,s1,s2, b0=3622,b1=7243,b2=3622,a1=822690,a2=-837162; int in0,in1,in2;in0 = ADC1->DR; // pass ADC -> circular buffer x1 Sum = 0...

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