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SPI1 question ?

Posted on September 13, 2015 at 12:38 Guys, I want to use SPI1 for communicating with VS1... Is my configuration right ? #if !defined (USE_STM3210B_EVAL) && !defined (USE_STM3210E_EVAL) && !defined (USE_STM3210C_EVAL)&& !d...

STM32F7 Breakpoints

Posted on September 15, 2015 at 16:47Hello,I have a basic breakpoint question.  I am using Keil uVision5 with an ULINK-PRO.  I have a project with Keil RTX RTOS.  I set breakpoints at different places in my code and when the one of them triggered my...

keaven by • Associate II
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  • 3 replies
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How to allocate variable in Flash to desired address?

Posted on May 24, 2012 at 10:11Please, could you help me? with STM32F4xx.But I think it's general problem with GNU linker.I'm working on SW for colour graphical display application.It works fine.But I need to store some data to Flash after the progr...

msvarc9 by • Associate
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  • 31 replies
  • 1 kudos

Timer enable and disable

Posted on September 15, 2015 at 12:32 Hi, I have a stm32f4-disco, and I wanted to enable and disable a timer using external interrupt. When the external signal arrives I enable the timer, and when 400 ticks have passed I disable the ...

fiulala by • Associate II
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  • 1 replies
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stm32f103 - timer3 unwanted overflow

Posted on September 15, 2015 at 11:37 Hello, i am trying to measure a rc pwm signal (from a single channel of a rc receiver) This signal has a total period of 20ms (50 hz) The active pulse is between 900us and 2000us width St...

Bogdan by • Senior
  • 532 Views
  • 1 replies
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STM32F303RE: unwanted interrupt

Posted on September 14, 2015 at 18:12I have an EXTI programmed on PortB line8 that works as expected when  a rising edge is found on GPIO_IN8.Unfortunaltely sometimes, when I reset the GPIO_Pin15 of port B by doing  GPIOB->BRR  = GPIO_Pin_15  then t...

Why CDC_Receive_FS is empty on usbd_cdc_if.c?

Posted on September 02, 2015 at 20:23 Hi, I create a new project using cubemx 4.10 with hal 1.8 for USB device. I'm looking for receive function and i found CDC_Receive_FS, but there is almost no code in ther: /** * @brief CDC_Receive_FS ...

Problem with timer initialization (TIM1)

Posted on September 04, 2015 at 19:08Dear all, I want to use TIM1 CH3N  to drive a buzzer with different frequencies. I have tried to program TIM1 on channel 3N as below (the corresponding pin is already configured as AF_PP at 50 MHz): void buzz(uin...

danesh by • Associate II
  • 2318 Views
  • 8 replies
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About priority grouping

Posted on September 14, 2015 at 12:18 Hi , still with my STM32F429I disco-board project , I would know what is the return of this functions: /** \brief Get Priority Grouping The function reads the priority grouping field from the N...

Systick Interrupt using GNU Assembler

Posted on September 13, 2015 at 16:48Hi guys,I have a problem to test systick using GNU assembler on my STM32VLDiscoveryMy assembly code is:.thumb.syntax unified.cpu cortex-m3 @ STM32VLDiscovery Board .equ STACKINIT ,   0x20005000 .equ GPIOC_BASE ...

agung by • Associate II
  • 1664 Views
  • 7 replies
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