Dealing with Timers

elaroussi · ‎2014-02-21

Posted on February 21, 2014 at 14:16

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Tesla DeLorean · ‎2014-04-26

Posted on April 26, 2014 at 14:43

Yes, your project seems to be missing the critical startup_stm32f10x.s (or equivalent) file, describing the STM32F1 interrupt vector table. Please review some of the template projects in the firmware libraries, and use those as a guide to setting up your own.

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mn · ‎2014-04-27

Posted on April 28, 2014 at 07:23

yes. i did not add ''startup_stm32f10x_hd.s'' correctly to my project.

Thanks a lot.

mn · ‎2014-06-09

Posted on June 09, 2014 at 09:05

hi

i have new problem with IAR interrupt.

i config TIM2 interrupt and after execute:

TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);

jtag jump to ''startup_stm32f10x_hd.s''

and stop in line:

B TIM2_IRQHandler

//---- my config and functions:

void TIM2_IRQHandler(void)// call 62.5us Timer INT Lable

{

if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) // Qualify the source

{

TIM_ClearITPendingBit(TIM2, TIM_IT_Update); // Clear the source

}

if(BufferCounter<(BfrSize-SprtBfrSize))

{

if(BufferCounter==0)

Buffer_Flag=0x01;

DAC_SetDualChannelData(DAC_Align_8b_R,Buffer[BufferCounter],Buffer[BufferCounter]);

BufferCounter++;

}

else

{

if(BufferCounter==(BfrSize-SprtBfrSize))

Buffer_Flag=0x02;

DAC_SetDualChannelData(DAC_Align_8b_R,PBuffer[BufferCounter-(BfrSize-SprtBfrSize)],PBuffer[BufferCounter-(BfrSize-SprtBfrSize)]);

BufferCounter++;

if(BufferCounter>=BfrSize)

BufferCounter=0;

}

//----------------------------------

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);// TIMER2 CLOCK ENABLE

RCC_APB1PeriphResetCmd(RCC_APB1Periph_TIM2,DISABLE);

NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; // Define the INT source

NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 7;// Define the INT Priority

NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;

NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;// Enable and Run the Timer

NVIC_Init(&NVIC_InitStructure);

//-------------------

void TIM_Configuration(void)// Timer Config for 10us

{

TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

TIM_TimeBaseStructure.TIM_Period = 4500;//4500 => 62.5us // Timer count to TIM_Period and will be Reset

TIM_TimeBaseStructure.TIM_Prescaler = 720;

TIM_TimeBaseStructure.TIM_ClockDivision =0;

TIM_TimeBaseStructure.TIM_RepetitionCounter=0;

TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//TIM_CounterMode_Up;

TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

TIM_ClearITPendingBit(TIM2, TIM_IT_Update); // Clear the source

TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);

TIM_Cmd(TIM2, ENABLE);

}