STM32 MCUs Products

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DMA problem is using ADC1 scan mode

Posted on December 04, 2014 at 21:30hello guysI am using stm32f103RETI want to use ADC1 in scan modeI do software start conversion in a timer interrupt and I configured DMA to save conversion values to a memory buffermy configuration code is herevoi...

abbas by Associate II
  • 571 Views
  • 3 replies
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One pulse generator on STM32L052

Posted on December 05, 2014 at 13:46Hi family,I am trying to generate a determined width pulse in one GPIO pin with STM32L052C uC and I am thinking to do this with One pulse mode timer.Is it possible to do that?Detecting the pulse Tp with the timer2...

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gerardo by Associate II
  • 1465 Views
  • 8 replies
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strange problem with keil uvision 5 and interrupts

Posted on December 06, 2014 at 23:52hello , first of all sorry for my bad english. I have problem with isr on keil uvision 5. Simple exception handler, for instance handler for systick interrupt defined as: void SysTick_Handler(){   ....code... } do...

andjelko by Associate II
  • 1604 Views
  • 6 replies
  • 0 kudos

STM32F439 and external core supply: NOT WORKING!

Posted on December 09, 2014 at 20:10 BYPASS_REG = High, VCAP = 1.2V (supplied externally), VCC = 1.8...3VResult: NRST is driven low constantlyby the MCU, nothing works. The same board works OK when BYPASS_REG = Low and the core's external supply dis...

our by Associate II
  • 909 Views
  • 6 replies
  • 0 kudos

STM32CubeMX USB Virtual Com Port

Posted on December 08, 2014 at 16:42Hi everybody,I recently bought a STM32F3Discovery board for a project. I made some experiments and tried to get an idea of how it works, and then I decided to set up a VCM in order to have better feedbacks from th...

adriano by Associate II
  • 911 Views
  • 4 replies
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Wrong project in STD PERIPH LIB

Posted on December 09, 2014 at 00:08Hi,when compiling an example in STM32f303_DSP_STD_PERIPH _LIB 1.10 I get lot of errors. then I check the project options (IAR) and the selected controller is arm7tdmi!  Changing the controller do not fix the probl...

gevides by Associate II
  • 624 Views
  • 2 replies
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STM32L152 stuck at startup and dont enter Main

Posted on December 01, 2014 at 16:34Hi everyone, I'm trying to connect STMl152 at Debug mode (JTAG) but with no success. If i tracing the startup it stuck in SetSysClock (''system_stml1xx.c'') function on : /* Wait till PLL is used as system clock s...

moran by Associate II
  • 1055 Views
  • 8 replies
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STM32f383xx

Posted on December 08, 2014 at 18:18Hi I am still (trying to learn) learning how to code STM32F devices using Keil MDK and maybe foolishly, made a pcb with a STM32F383CC6 on it.Firstly how do I use the Keil MDK or CubeMX when it does not appear to r...

INCREMENTAL ENCODER problem

Posted on December 08, 2014 at 17:10 Hello, I have a big mystery, based on incremental rotary encoders. I use a PEC11encoder http://www.adafruit.com/datasheets/pecpdfto control my STM32F4. I have no problem with it, it's work...

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stm429 uart1 interrupt priority in FreeRTOS?

Posted on December 08, 2014 at 15:39I use 429 UART1 with FreeRTOS. UART1 make an interrupt and 429 enter into ISR. But it hang in the FreeRTOS code line: configASSERT( ucCurrentPriority >= ucMaxSysCallPriority ); which is in function vPortValidateI...

ray by Associate II
  • 401 Views
  • 1 replies
  • 0 kudos