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DAC Software trigger

Posted on May 03, 2014 at 18:56 Hello, somehow i can't find way to do software trigger to start DMA transfer of memory array to dac. Original idea is to fill data array with my wavefrom, and use software trigger to start DMA transfer. Origin...

Temperature sensor in stm32f4-discovery problems

Posted on May 04, 2014 at 09:41Hi everyone, I'm trying to read temperature from temperature sensor in stm32f4-discovery kit I've configured ADC1 and then read converted value and do some math on it now when debugging it goes to hard fault  why ?? I ...

F103 USB BULK OUT Problem

Posted on May 04, 2014 at 16:04Hello, I am trying to get double buffered USB bulk-out transfers working.The device does enumerate correctly but bulk transfers do not even raise interrupts. This is my EP initialization (usb_prop.c : reset handler: [c...

schlenkj by Associate
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question about DMA

Posted on May 04, 2014 at 16:44I have an ISR, in which a DMA transfer will take place when the ISR is running. Although DMA transfer does not occupy CPU's running time, but occupies the Data bus. So will the DMA's existence lengthen the ISR's execut...

GPIO configuration for LSE crystal (STM32F102RBT6)

Posted on November 28, 2011 at 20:11This should be an easy one for you... I'm a new STM32 user and I am unsure how to configure the GPIO for PC14-15 when using 32kHz crystal as the LSE.  Do both pins need to be configured as alternate function (PP ...

jmorton by Associate II
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F429 I2C interface init

Posted on May 01, 2014 at 17:52 #include ''stm32f4xx_i2c.h'' #include ''stm32f4xx_rcc.h'' #include ''stm32f4xx_gpio.h'' void I2C1_Init(){ /* Enable Peripheral Clock for I2C1 */ RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE); /* Enable Periph...

kostas by Associate II
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STM32F3 Comparator

Posted on April 30, 2014 at 18:17 hello everyone I am a beginner in STM32F3 and I found a problem with the comparator. I have no compilation error but its not working. If anyone can help me I would be grateful here is the code: ...

rafik by Associate II
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STM32F407 and OpenCV ?

Posted on May 03, 2014 at 04:41Guys, Is it possible to use STM32F407 and OpenCV ? Are 8Mbytes of RAM will be enough ? What chip is available with a good price for 8Mbytes of Static RAM ? Thank you