Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on July 08, 2014 at 09:30Hi,I’m trying to minimize control loop delays. Based on a certain analog value (adjustable threshold) a digital output is triggered. Reading ADC values is done by using DMA, digital outputs are driven without DMA.Resu...
Posted on July 08, 2014 at 11:33 Hi i have e following code for communication with an I2C Device. #define DEVICE_ADDR 0x14 #define DEVICE_READ 0x4c Therm_Timeout = 10 * Therm_LONG_TIMEOUT; while(I2C_GetFlagStatus(DEVICE_I2C, I2C...
Posted on July 07, 2014 at 21:30hello dear forum,By using a method called ‘Oversampling andDecimation’ higher resolution might be achieved, without using an external ADC.I have read this above sentence in an application note for increasing the A...
Posted on July 06, 2014 at 16:46Hello,I am working on STM32L151ZC. I use DMA to continuously read 28 ADC channelsIt seems that the DMA is periodicaly (les often than the ''normal operation period'') overwriting memory that it shouldn't access direct...
Posted on July 07, 2014 at 17:19HeyI need some help for my project (I'm using STM32f4 discover board). I would like to exchange data from mcu to pc and pc to mcu. Data will be an array with some informations. I tried USB CDC (works fine) but the thr...
Posted on July 07, 2014 at 14:52how to configure watchdog timer for the freertos in stm32l152cb MCU, the freertos has 3 tasks running. when to update the WWDG counter, in the st example wwdg counter is updated in a while loop every 50ms . but how to...
Posted on July 03, 2014 at 17:56I am attempting to communicate to the bootloader through RS232 on USART 2 on the STM32L152VB. I have Boot 0 pulled up and I believe I am in the bootloader because the application code is clearly not running. I am us...
Posted on July 04, 2014 at 17:29 Hi all, I'm trying to use a PWM on a Olimex STM32-H407 board to drive the green LED (only user LED on the board), but without any success. I managed to use timers for generating output signal to turn on/of...
Posted on June 28, 2014 at 11:52hello I want to use synchronous mode Usart. but i dont know how to set clock pin to for example 10 MHZ. please help me. thanks #stm32 #synchronous #usart
Posted on July 06, 2014 at 00:11 Hi guys, i`ve spent several hours trying to figure whats wrong in my initialization routine, but no luck at all... Here is my code #include ''system_stm32f4xx.c'' #include ''stm32f4xx.h'' #include ''us...
