/**
* @brief Example firmware main entry point.
* @par Parameters:
* None
* @retval
* None
*/
void main(void)
{
/* Time base configuration */
TIM2_TimeBaseInit(TIM2_PRESCALER_2048, 65535);
/* Prescaler configuration */
TIM2_PrescalerConfig(TIM2_PRESCALER_2048, TIM2_PSCRELOADMODE_IMMEDIATE);
/* Output Compare Active Mode configuration: Channel1 */
/*
TIM2_OCMode = TIM2_OCMODE_ACTIVE
TIM2_OutputState = TIM2_OUTPUTSTATE_ENABLE
TIM2_Pulse = CCR1_Val
TIM2_OCPolarity = TIM2_OCPOLARITY_HIGH
*/
TIM2_OC1Init(TIM2_OCMODE_ACTIVE, TIM2_OUTPUTSTATE_ENABLE,CCR1_Val, TIM2_OCPOLARITY_HIGH);
TIM2_OC1PreloadConfig(DISABLE);
/* Output Compare Active Mode configuration: Channel2 */
/*TIM2_Pulse = CCR2_Val */
TIM2_OC2Init(TIM2_OCMODE_ACTIVE, TIM2_OUTPUTSTATE_ENABLE,CCR2_Val, TIM2_OCPOLARITY_HIGH);
TIM2_OC2PreloadConfig(DISABLE);
/* Output Compare Active Mode configuration: Channel3 */
/*
TIM2_Pulse = CCR3_Val
*/
TIM2_OC3Init(TIM2_OCMODE_ACTIVE, TIM2_OUTPUTSTATE_ENABLE,CCR3_Val, TIM2_OCPOLARITY_HIGH);
TIM2_OC3PreloadConfig(DISABLE);
TIM2_ARRPreloadConfig(ENABLE);
/* Set PG.6 pin */
GPIO_Init(GPIOG, GPIO_PIN_6, GPIO_MODE_OUT_PP_LOW_FAST);
GPIO_WriteHigh(GPIOG, GPIO_PIN_6);
/* TIM2 enable counter */
TIM2_Cmd(ENABLE);
while (1);
}
void BuzzerStart(void)
{
/*
TIM2_DeInit();
TIM2_TimeBaseInit(TIM2_PRESCALER_16,u8BzrFrqBuf);
TIM2_ARRPreloadConfig(ENABLE);
TIM2_Cmd(ENABLE);
TIM2_ITConfig(TIM2_IT_UPDATE,ENABLE);
*/
TIM2_DeInit();
TIM2_TimeBaseInit(TIM2_PRESCALER_16,u8BzrFrqBuf );
#ifdef NEW_260
TIM2_CCxCmd(TIM2_CHANNEL_3, ENABLE);
TIM2_OC3Init(TIM2_OCMODE_TOGGLE, TIM2_OUTPUTSTATE_ENABLE, 64, TIM2_OCPOLARITY_LOW);
TIM2_OC3PreloadConfig(ENABLE);
#else
TIM2_CCxCmd(TIM2_CHANNEL_2, ENABLE);
TIM2_OC2Init(TIM2_OCMODE_TOGGLE, TIM2_OUTPUTSTATE_ENABLE, 64, TIM2_OCPOLARITY_LOW);
TIM2_OC2PreloadConfig(ENABLE);
#endif
TIM2_ARRPreloadConfig(ENABLE);
TIM2_ITConfig(TIM2_IT_CC1, DISABLE);
TIM2_ITConfig(TIM2_IT_CC2, DISABLE);
TIM2_ITConfig(TIM2_IT_CC3, DISABLE);
TIM2_ITConfig(TIM2_IT_UPDATE, DISABLE);
TIM2_GenerateEvent(TIM2_EVENTSOURCE_UPDATE);
TIM2_Cmd(ENABLE);
SetBuzzerEnOn();
}
void __delay_us(uint16_t delay)
{
delay = delay * 16;
uint16_t count = 0;
TIM2_ARRPreloadConfig(DISABLE);
TIM2_SetAutoreload(delay);
TIM2_SetCounter(0);
TIM2_Cmd(ENABLE);
while(TIM2_GetFlagStatus(TIM2_FLAG_Update) == RESET);
TIM2_ClearFlag(TIM2_FLAG_Update);
TIM2_Cmd(DISABLE);
}
/**
* @brief Example firmware main entry point.
* @par Parameters:
* None
* @retval
* None
*/
void main(void)
{
/* Time base configuration */
TIM2_TimeBaseInit(TIM2_PRESCALER_2048, 65535);
/* Prescaler configuration */
TIM2_PrescalerConfig(TIM2_PRESCALER_2048, TIM2_PSCRELOADMODE_IMMEDIATE);
/* Output Compare Active Mode configuration: Channel1 */
/*
TIM2_OCMode = TIM2_OCMODE_INACTIVE
TIM2_OCPolarity = TIM2_OCPOLARITY_HIGH
TIM2_Pulse = CCR1_Val
*/
TIM2_OC1Init(TIM2_OCMODE_INACTIVE, TIM2_OUTPUTSTATE_ENABLE,CCR1_Val, TIM2_OCPOLARITY_HIGH);
TIM2_OC1PreloadConfig(DISABLE);
/* Output Compare Active Mode configuration: Channel2 */
/*TIM2_Pulse = CCR2_Val; */
TIM2_OC2Init(TIM2_OCMODE_INACTIVE, TIM2_OUTPUTSTATE_ENABLE,CCR2_Val, TIM2_OCPOLARITY_HIGH);
TIM2_OC2PreloadConfig(DISABLE);
/* Output Compare Active Mode configuration: Channel3 */
/*TIM2_Pulse = CCR3_Val */
TIM2_OC3Init(TIM2_OCMODE_INACTIVE, TIM2_OUTPUTSTATE_ENABLE,CCR3_Val, TIM2_OCPOLARITY_HIGH);
TIM2_OC3PreloadConfig(DISABLE);
TIM2_ARRPreloadConfig(ENABLE);
/* TIM IT enable */
TIM2_ITConfig(TIM2_IT_CC1, ENABLE);
TIM2_ITConfig(TIM2_IT_CC2, ENABLE);
TIM2_ITConfig(TIM2_IT_CC3, ENABLE);
/* Set pin PG.5 & PG.6 & PG.7 to high state */
GPIO_Init(GPIOG, (GPIO_PIN_5|GPIO_PIN_6| GPIO_PIN_7), GPIO_MODE_OUT_PP_LOW_FAST);
GPIO_WriteHigh(GPIOG, GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
/* TIM2 enable counter */
TIM2_Cmd(ENABLE);
enableInterrupts();
while (1);
}
void TIM2_Config(void)
{
/* TIM2 configuration:
- TIM2CLK is set to 16 MHz, the TIM2 Prescaler is equal to 128 so the TIM2 counter
clock used is 16 MHz / 512 = 31250 Hz
- In this example we need to generate a time base equal to 500 ms
so TIM2_PERIOD = (0.5 * 312500 - 1) = 15624 */
/* Time base configuration */
TIM2_TimeBaseInit(TIM2_PRESCALER_512, TIM2_PERIOD);
TIM2_ARRPreloadConfig(ENABLE);
TIM2_ClearFlag(TIM2_FLAG_UPDATE);
/* Enable update interrupt */
TIM2_ITConfig(TIM2_IT_UPDATE, ENABLE);
/* Enable TIM2 */
TIM2_Cmd(ENABLE);
}
/**
* @brief Configure Output Compare Active Mode for TIM2 Channel1, Channel2 and
* channel3
* @param None
* @retval None
*/
static void TIM2_Config(void)
{
/* Time base configuration */
TIM2_TimeBaseInit(TIM2_PRESCALER_2048, 65535);
/* Prescaler configuration */
TIM2_PrescalerConfig(TIM2_PRESCALER_2048, TIM2_PSCRELOADMODE_IMMEDIATE);
/* Output Compare Active Mode configuration: Channel1 */
/*
TIM2_OCMode = TIM2_OCMODE_INACTIVE
TIM2_OCPolarity = TIM2_OCPOLARITY_HIGH
TIM2_Pulse = CCR1_Val
*/
TIM2_OC1Init(TIM2_OCMODE_INACTIVE, TIM2_OUTPUTSTATE_ENABLE,CCR1_Val, TIM2_OCPOLARITY_HIGH);
TIM2_OC1PreloadConfig(DISABLE);
/* Output Compare Active Mode configuration: Channel2 */
/*TIM2_Pulse = CCR2_Val; */
TIM2_OC2Init(TIM2_OCMODE_INACTIVE, TIM2_OUTPUTSTATE_ENABLE,CCR2_Val, TIM2_OCPOLARITY_HIGH);
TIM2_OC2PreloadConfig(DISABLE);
/* Output Compare Active Mode configuration: Channel3 */
/*TIM2_Pulse = CCR3_Val */
TIM2_OC3Init(TIM2_OCMODE_INACTIVE, TIM2_OUTPUTSTATE_ENABLE,CCR3_Val, TIM2_OCPOLARITY_HIGH);
TIM2_OC3PreloadConfig(DISABLE);
TIM2_ARRPreloadConfig(ENABLE);
/* TIM IT enable */
TIM2_ITConfig(TIM2_IT_CC1, ENABLE);
TIM2_ITConfig(TIM2_IT_CC2, ENABLE);
TIM2_ITConfig(TIM2_IT_CC3, ENABLE);
/* TIM2 enable counter */
TIM2_Cmd(ENABLE);
}
