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Forum Posts

TIMING issues

Posted on July 20, 2013 at 20:19im trying to pull a pin high and drop low right before SPI transmission. Any suggestions on how i can accomplish this? Basically i need a command that will do this every time there is a transmission. #stm32f103

timothy by Associate II
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hex file compatibility

Posted on July 19, 2013 at 19:46It's possible to create an hex file with IAR Embedded Workbench and download through the keil uVision the same file?I have an error:No Algorithm found for: 00000000H - 0000063FH #hex-file-stm32f103-iar-keil

SEGGER embOS/Micrium OS-III on STM32F4

Posted on July 17, 2013 at 09:58Hi , Maybe someone here can help me with the issue that i am having . I am currently evaluating both embOS and OS-III on STM32F4G-Eval, and i see the same issue on both of them . After starting my task , when inside ...

DMA working in a strange way

Posted on July 19, 2013 at 08:13first of all the DMA code:void DMA_Config(uint32_t addr){//int addr=&ipbuffer;NVIC_InitTypeDef NVIC_InitStructure;DMA_InitTypeDef  DMA_InitStructure;/* Enable DMA clock */RCC_AHB1PeriphClockCmd(DMA_STREAM_CLOCK, ENABL...

DMA between 2 SPIs and FSMC

Posted on July 17, 2013 at 13:40The original post was too long to process during our migration. Please click on the attachment to read the original post.

JPEG decompression to BMP

Posted on July 17, 2013 at 11:47Hello all,I've been trying to convert JPEG files to BMP for over two weeks. I have STM3240G-EVAL which includes IJG's JPEG library in its ''demonstration builder'', however, I could not figure out how to use it. All I...

gnyturan by Associate II
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STM32F407 dont stop SPI communication properly

Posted on July 18, 2013 at 21:19Hi, I have Problems with STM32F407VGT6 and SPI, I read from SPI 2x 16-bit words from device. In documentation is written after the first word is read then wait for short period that th one clock cycle starte then disa...

Osto by Senior
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GPIOB_pin12 connecting to interrupt line

Posted on July 23, 2012 at 22:26 hello, i am trying to make interrupt based touchscreen program, but have no luck connecting GPIOB_pin12 to interrupt line i was able to do so in GPIOA_pin1, but still cant figureout how to do that on GPIO...

linas2 by Associate II
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MIPS as indicator for performance

Posted on July 15, 2013 at 18:50Hi , I am working on Cortex M4F CPU , its 168 MHZ , i know that Cortex M4F is 1.25 MIPS per MHZ so a quick calculation will give me total of 210 MIPS . Lets say i have an algorithm  that runs 3 seconds , so what shou...