Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on March 16, 2012 at 13:33 i am using eCos for my app. i have STM3210E-EVAL board. in my app there is one thread(toggle LED) and external interrupt on PG8. when button is pressed(PG8) another LED should blink once.but nothing... ...
Posted on May 03, 2014 at 07:35hi, i'm using a stm32f4 board. and i want to write a program with ecos embeded system that when i push user button, an interrupt will trigerd and do something. i find the function cyg_interrupt_create(), but i need a ...
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...
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 ...
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...
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...
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 ...
Posted on April 14, 2014 at 09:30I am using STM32F407VGT6 microcontroller featuring 1 MB of Flash memory, 192 KB of RAM in my system which is having a usb connector.End use is logging data into pendrive.I am using STM32_USB_HOST_Library mass storage...
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...
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: ...
