Posted on January 27, 2015 at 13:27Hi all,
is it possible to run the Timer 1 in Capture Compare mode to detect the duty cycle of a PWM and the Timer 2 in Capture Compare mode to generate a PWM?
Sadly in my project Timer 2 is not giving any output while i measure the duty cycle with Timer 1.
CODE:
/* Configure TIMER1 peripheral -----------------------------------------------*/
static void TIM1_Config(void)
{
/* Init TIMER 1 */
CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER1, ENABLE);
// configure TIM1 channel 1 to capture a PWM signal
TIM1_PWMIConfig(TIM1_CHANNEL_1, TIM1_ICPOLARITY_RISING, TIM1_ICSELECTION_DIRECTTI,
TIM1_ICPSC_DIV1, ENABLE);
// Select the TIM1 Input Trigger: TI1FP1
TIM1_SelectInputTrigger(TIM1_TS_TI1FP1);
TIM1_SelectSlaveMode(TIM1_SLAVEMODE_RESET);
// Enable CC1 interrupt request
TIM1_ITConfig(TIM1_IT_CC2, 0x01);
// Enable TIM1
TIM1_Cmd(ENABLE);
enableInterrupts();
} static void TIM2_Config(uint16_t value)
{
//CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER2, ENABLE);
TIM2_TimeBaseInit(TIM2_PRESCALER_1, 16000); // Time base configuration
TIM2_OC1Init(TIM2_OCMODE_PWM1, TIM2_OUTPUTSTATE_ENABLE,value, TIM2_OCPOLARITY_HIGH);
TIM2_OC1PreloadConfig(ENABLE); // PWM1 Mode configuration: Channel1
TIM2_ARRPreloadConfig(ENABLE);
TIM2_Cmd(ENABLE); // TIM2 enable counter
}
