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Low Power Aplication with WDG

Posted on July 08, 2014 at 16:49Hi,I have programmed an application that reads sensors and then enters in low-power mode (StandBy)  for several hoursHow can I implement a watch dog to prevent failures during during the read operation?Best Regards,  ...

STM32F2 and FT245RL

Posted on July 07, 2014 at 15:46Hi,I have limited experience with USB.  I would like to implement the parallel FIFO interface to a STM32F2.  I am a bit at a lost not knowing where to start.. should I use the DMA or something else is more suited to t...

Timer 15 not working

Posted on April 30, 2014 at 04:58Hi,I am trying to remap and use TIM15 for my project and faced some problems. Using TIM2 was ok. Below are some of my codes related to using TIM15. When I run, first thing I noticed was that the IRQ Handler was not c...

Use emwin with STM32F207 & SSD1963

Posted on July 07, 2014 at 14:14I want to use STemwin GUI library for one of my project. Interfaced successfully STM32F207 with SSD1963 LCD driver (480x272). But when used emwin library standalone application it gets hardfault handler after GUI_X_In...

STM32F3 I2C Restart Condition

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...

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DMA overwrites rest of memory [solved]

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...

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USB communication between MCU and PC

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...

configuring watchdog for freertos

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...