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REGARDING STM32F030F4P6 GPIO configuration.

Posted on July 24, 2014 at 05:13HI,I have faced one problem with PORTF pin configuration (PF0,PF1).My GPIO configuration:RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE); InitGpio.GPIO_Pin = (GPIO_Pin_0 | GPIO_Pin_1 ); InitGpio.GPIO_Mode = GPIO_Mo...

chowdaiah by Associate II
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  • 7 replies
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interfacing external oscillator to STM32F407igt6

Posted on July 25, 2014 at 12:44Hi all,         I have to interface external oscillator to stm32f407igt6 which is having 16Mhz internal frequency and i need to boost it to 168Mhz frequency by connecting a 25Mhz external  oscillator so can anyone giv...

ecmanja by Associate II
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  • 2 replies
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STM32F4: GPIOx_AFRL/H value vs. GPIOx_MODER AF mode

Posted on July 25, 2014 at 02:53What is the use of the GPIOx_MODER Alternate function mode?  Is it needed when an appropriate non-zero value is put into GPIOx_AFRL/H?  Is the GPIOx_MODER alternate function mode value only needed for those few altern...

picguy2 by Associate II
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  • 1 replies
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Stm32f407igt6

Posted on July 22, 2014 at 12:31I have configured the clock for 168 mhz and for tim2 84 mhz , presaclar = 2 and arr = 200 it is showing 4.6 us in stm32f407vgt6...but in stm32f407igt6 it is showing 24 us .....I have checked the system_init actually i...

sanjib by Associate III
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  • 7 replies
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F4 FPU interrupt vector

Posted on July 24, 2014 at 02:26STM32F4xxx Reference Manual, DM00031020 rev 6, has the �FPU� interrupt vector at position 81, address 0x00000184 (or 0x08000184 depending on how one views low ROM).  I found no documentation about what this vector is ...

picguy2 by Associate II
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  • 5 replies
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Double buffer DMA

Posted on July 24, 2014 at 22:55Hi,I am trying to develop an application for STM32L series. I need to use DMA in double buffer mode. I found information in the reference manual for a double buffer circular mode which uses a single DMA buffer with ha...

s7v7n92 by Associate II
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  • 3 replies
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LCD shows wrong colors

Posted on July 20, 2014 at 19:52I'm using a 7'' 800x480 LCD, + SSD1963 driver.The combination is connected to an STM32F103ZET6, via FSMC.I have modified a header file to initialize ssd1963, things seem to work as expected, texts and fonts are OK, bu...

Why USART transmission depends on function calls order?

Posted on July 23, 2014 at 17:22 Hello, please help me to solve next problem. I have application, which consists of three main modules: io_init(), lcd_init() and usart_init() â€�?  io_init() configures button inputs and some outputs used for relays ...

orionhere by Associate II
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