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 tim2_on(void)
{
TIM2_TimeBaseInit(TIM2_Prescaler_2,TIM2_CounterMode_Up,0x0800);
TIM2_OC1Init(TIM2_OCMode_PWM2,TIM2_OutputState_Enable,0x0400,TIM2_OCPolarity_High,TIM2_OCIdleState_Set);
TIM2_OC2Init(TIM2_OCMode_PWM2,TIM2_OutputState_Enable,0x0400,TIM2_OCPolarity_Low ,TIM2_OCIdleState_Set);
TIM2_CCxCmd(TIM2_Channel_1,ENABLE);
TIM2_CCxCmd(TIM2_Channel_2,ENABLE);
TIM2_BKRConfig(TIM2_OSSIState_Enable,TIM2_LockLevel_Off,TIM2_BreakState_Disable,TIM2_BreakPolarity_High,TIM2_AutomaticOutput_Enable);
TIM2_ITConfig(TIM2_IT_CC1,ENABLE);
TIM2_ITConfig(TIM2_IT_CC2,DISABLE);
TIM2_Cmd(ENABLE);
};
void MOD_TIM_Config(Mod_Master_Frame_TypeDef* aFrame)
{
TIM2_DeInit();
TIM2_TimeBaseInit(0x0F, 1500); //2ms comm response time
TIM2_UpdateRequestConfig(TIM2_UPDATESOURCE_REGULAR);
TIM2_GenerateEvent(TIM2_EVENTSOURCE_UPDATE);
TIM2_Cmd(DISABLE);
TIM2_ClearITPendingBit(TIM2_IT_UPDATE);
TIM2_ITConfig(TIM2_IT_UPDATE, ENABLE);
TIM2_ClearFlag(TIM2_FLAG_UPDATE);
TIM4_DeInit();
TIM4_TimeBaseInit(0x07, 126); //128 * 126 = 16128 = 2ms (8MHz), frame check
TIM4_UpdateRequestConfig(TIM4_UPDATESOURCE_REGULAR);
TIM4_GenerateEvent(TIM4_EVENTSOURCE_UPDATE);
TIM4_Cmd(DISABLE);
TIM4_ClearITPendingBit(TIM4_IT_UPDATE);
TIM4_ITConfig(TIM4_IT_UPDATE, ENABLE);
TIM4_ClearFlag(TIM4_FLAG_UPDATE);
}
/**
* @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);
}
inline void
vMBPortTimersDisable( )
{
/* Disable any pending timers. */
TIM2_ITConfig(TIM2_IT_UPDATE, DISABLE);
TIM2_Cmd(DISABLE);
}
/*
Configure TIM2 to interrupt every 10ms
*/
void InitTimer()
{
TIM2_DeInit();
TIM2_TimeBaseInit(TIM2_PRESCALER_32768, // Interrupt every 32768 clock pulses.
5); // 16Mhz / 32768 = 488 -> every 2ms -> ARR=5 -> every 10ms
TIM2_ITConfig(TIM2_IT_UPDATE, ENABLE);
TIM2_Cmd(ENABLE);
}
inline void
vMBPortTimersEnable( )
{
/* Enable the timer with the timeout passed to xMBPortTimersInit( ) */
TIM2_ClearFlag(TIM2_FLAG_UPDATE);
TIM2_SetCounter(0x00);
TIM2_ITConfig(TIM2_IT_UPDATE, ENABLE);
TIM2_Cmd(ENABLE);
}
/**
* @brief Включить таймер № 2.
* @par
* Параметры отсутствуют
* @retval
* Возвращаемое значение отсутствует
*/
void CounterTimerStart(void)
{
TIM2_DeInit();
TIM2_TimeBaseInit(TIM2_PRESCALER_32768, 610);
TIM2_ITConfig(TIM2_IT_UPDATE, ENABLE);
TIM2_Cmd(ENABLE);
}
void timer_init()
{
TIM2_DeInit();
TIM2_TimeBaseInit(TIM2_PRESCALER_1, 1600);
//TIM2_PrescalerConfig(TIM2_PRESCALER_32768, TIM2_PSCRELOADMODE_IMMEDIATE);
TIM2_ITConfig(TIM2_IT_UPDATE, ENABLE);
ITC_SetSoftwarePriority(ITC_IRQ_TIM2_OVF, ITC_PRIORITYLEVEL_1);
TIM2_Cmd(ENABLE);
}
void timerInit(void)
{
/* TIM2 initial */
TIM2_TimeBaseInit(TIM2_PRESCALER_16,7812);
TIM2_ITConfig( TIM2_IT_UPDATE , ENABLE);
TIM2_SetCounter(0x0000);
/*计时器打开*/
TIM2_Cmd(ENABLE);
TIM2_ClearFlag(TIM2_FLAG_UPDATE);
}
/* Private functions ---------------------------------------------------------*/
void TIM2_Config(void)
{
/* Time base configuration */
TIM2_TimeBaseInit(TIM2_Prescaler_1,TIM2_CounterMode_Up, 1);
/* Clear TIM1 update flag */
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);
}
/* ----------------------- Start implementation -----------------------------*/
BOOL
xMBPortTimersInit( USHORT usTim1Timerout50us )
{
ENTER_CRITICAL_SECTION();
// f_master = 16 MHz
// TIM2 counter clock = f_master / Prescaler = 0.5 MHz
// 1 step = 2 us
// maximum timeout = 2us * 65535 = 130ms
TIM2_DeInit();
TIM2_TimeBaseInit(TIM2_PRESCALER_32, 25 * usTim1Timerout50us);
TIM2_ClearFlag(TIM2_FLAG_UPDATE);
TIM2_ITConfig(TIM2_IT_UPDATE, ENABLE);
EXIT_CRITICAL_SECTION();
return TRUE;
}
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);
}
//Modbus Initialization
void Modbus_Init(void)
{
//Clock divider equals 1.Clock 16MHz
CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
//Clear bits
TIM2_DeInit();
GPIO_DeInit(GPIOA);
UART2_DeInit();
//Peripetial Initialization
TIM2_TimeBaseInit(TIM2_PRESCALER_2048, 78);
GPIO_Init(GPIOA, GPIO_PIN_3, GPIO_MODE_OUT_PP_LOW_FAST);
UART2_Init(BAUDRATE, UART2_WORDLENGTH_8D, UART2_STOPBITS_2,UART2_PARITY_NO,UART2_SYNCMODE_CLOCK_DISABLE,UART2_MODE_TXRX_ENABLE );
//Enable Periphs
TIM2_Cmd(ENABLE);
UART2_Cmd(ENABLE);
//Interrupt configuration
TIM2_ITConfig(TIM2_IT_UPDATE, ENABLE);
UART2_ITConfig(UART2_IT_RXNE_OR, ENABLE);
#ifndef __DELAY_EN
#define __MODBUS_EN
enableInterrupts();
#endif
}