/*********************************************************************//**
* @brief Initial Timer/Counter device
* Set Clock frequency for ADC
* Set initial configuration for ADC
* @param[in] TIMx Timer selection, should be LPC_TMR16B0, LPC_TMR16B1
* LPC_TMR32B0, LPC_TMR32B1
* @param[in] TimerCounterMode TIM_MODE_OPT
* @param[in] TIM_ConfigStruct pointer to TIM_TIMERCFG_Type
* that contains the configuration information for the
* specified Timer peripheral.
* @return None
**********************************************************************/
void TIM_Init(TMR_TypeDef *TIMx, uint8_t TimerCounterMode, void *TIM_ConfigStruct)
{
TIM_TIMERCFG_Type *pTimeCfg;
TIM_COUNTERCFG_Type *pCounterCfg;
uint32_t val;
CHECK_PARAM(PARAM_TIMx(TIMx));
CHECK_PARAM(PARAM_TIM_MODE_OPT(TimerCounterMode));
// Set power
if(TIMx == LPC_TMR16B0) {
SYSCON_AHBPeriphClockCmd(SYSCON_AHBPeriph_CT16B0, ENABLE);
} else if(TIMx == LPC_TMR16B1) {
SYSCON_AHBPeriphClockCmd(SYSCON_AHBPeriph_CT16B1, ENABLE);
} else if(TIMx == LPC_TMR32B0) {
SYSCON_AHBPeriphClockCmd(SYSCON_AHBPeriph_CT32B0, ENABLE);
} else if(TIMx == LPC_TMR32B1) {
SYSCON_AHBPeriphClockCmd(SYSCON_AHBPeriph_CT32B1, ENABLE);
}
TIMx->CCR &= ~TIM_CTCR_MODE_MASK;
TIMx->CCR |= TimerCounterMode;
TIMx->TC =0;
TIMx->PC =0;
TIMx->PR =0;
if (TimerCounterMode == TIM_TIMER_MODE )
{
pTimeCfg = (TIM_TIMERCFG_Type *)TIM_ConfigStruct;
if (pTimeCfg->PrescaleOption == TIM_PRESCALE_TICKVAL) {
val = pTimeCfg->PrescaleValue -1 ;
} else {
val = TIM_ConverUSecToVal (pTimeCfg->PrescaleValue)-1;
}
if ((TIMx == LPC_TMR16B0) || (TIMx == LPC_TMR16B1)) {
val &= 0xFFFF;
}
TIMx->PR = val;
} else {
pCounterCfg = (TIM_COUNTERCFG_Type *)TIM_ConfigStruct;
TIMx->CCR &= ~TIM_CTCR_INPUT_MASK;
if (pCounterCfg->CountInputSelect == TIM_COUNTER_INCAP1)
TIMx->CCR |= _BIT(2);
}
// Clear interrupt pending
TIMx->IR = 0x3F;
}
/*********************************************************************//**
* @brief Initial Timer/Counter device
* Set Clock frequency for Timer
* Set initial configuration for Timer
* @param[in] TIMx Timer selection, should be TIM0, TIM1, TIM2, TIM3
* @param[in] TimerCounterMode TIM_MODE_OPT
* @param[in] TIM_ConfigStruct pointer to TIM_TIMERCFG_Type
* that contains the configuration information for the
* specified Timer peripheral.
* @return None
**********************************************************************/
void TIM_Init(LPC_TIM_TypeDef *TIMx, uint8_t TimerCounterMode, void *TIM_ConfigStruct)
{
TIM_TIMERCFG_Type *pTimeCfg;
TIM_COUNTERCFG_Type *pCounterCfg;
uint32_t timer;
CHECK_PARAM(PARAM_TIMx(TIMx));
CHECK_PARAM(PARAM_TIM_MODE_OPT(TimerCounterMode));
timer = TIM_ConverPtrToTimeNum(TIMx) ;
//set power
if (TIMx== LPC_TIM0)
{
CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM0, ENABLE);
CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER0, CLKPWR_PCLKSEL_CCLK_DIV_4);
}
else if (TIMx== LPC_TIM1)
{
CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM1, ENABLE);
CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER1, CLKPWR_PCLKSEL_CCLK_DIV_4);
}
else if (TIMx== LPC_TIM2)
{
CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM2, ENABLE);
CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER2, CLKPWR_PCLKSEL_CCLK_DIV_4);
}
else if (TIMx== LPC_TIM3)
{
CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCTIM3, ENABLE);
CLKPWR_SetPCLKDiv (CLKPWR_PCLKSEL_TIMER3, CLKPWR_PCLKSEL_CCLK_DIV_4);
}
//TIMx->CCR &= ~TIM_CTCR_MODE_MASK;
//TIMx->CCR |= TIM_TIMER_MODE;
TIMx->CTCR &= ~TIM_CTCR_MODE_MASK;
TIMx->CTCR |= TimerCounterMode;
TIMx->TC =0;
TIMx->PC =0;
TIMx->PR =0;
if (TimerCounterMode == TIM_TIMER_MODE )
{
pTimeCfg = (TIM_TIMERCFG_Type *)TIM_ConfigStruct;
if (pTimeCfg->PrescaleOption == TIM_PRESCALE_TICKVAL)
{
TIMx->PR = pTimeCfg->PrescaleValue -1 ;
}
else
{
TIMx->PR = TIM_ConverUSecToVal (TIM_ConverPtrToTimeNum(TIMx),pTimeCfg->PrescaleValue)-1;
}
}
else
{
pCounterCfg = (TIM_COUNTERCFG_Type *)TIM_ConfigStruct;
//TIMx->CCR &= ~TIM_CTCR_INPUT_MASK;
TIMx->CTCR &= ~TIM_CTCR_INPUT_MASK;
if (pCounterCfg->CountInputSelect == TIM_COUNTER_INCAP1)
TIMx->CCR |= _BIT(2);
}
// Clear interrupt pending
TIMx->IR = 0xFFFFFFFF;
}
