/********************************************************************//**
* @brief Update value for multi PWM channel with update type option
* at the same time
* @param[in] PWMx PWM peripheral selected, should be LPC_PWM1
* @param[in] MatchStruct Structure that contents match value of 7 pwm channels
* @param[in] UpdateType Type of Update, should be:
* - PWM_MATCH_UPDATE_NOW: The update value will be updated for
* this channel immediately
* - PWM_MATCH_UPDATE_NEXT_RST: The update value will be updated for
* this channel on next reset by a PWM Match event.
* @return None
*********************************************************************/
void PWM_MultiMatchUpdate(LPC_PWM_TypeDef *PWMx, PWM_Match_T *MatchStruct , uint8_t UpdateType)
{
uint8_t LatchValue = 0;
uint8_t i;
CHECK_PARAM(PARAM_PWMx(PWMx));
CHECK_PARAM(PARAM_PWM_MATCH_UPDATE(UpdateType));
//Update match value
for(i=0;i<7;i++)
{
if(MatchStruct[i].Status == SET)
{
if(i<4)
*((volatile unsigned int *)(&(PWMx->MR0) + i)) = MatchStruct[i].Matchvalue;
else
{
*((volatile unsigned int *)(&(PWMx->MR4) + (i-4))) = MatchStruct[i].Matchvalue;
}
LatchValue |=(1<<i);
}
}
//set update for multi-channel at the same time
PWMx->LER = LatchValue;
// In case of update now
if (UpdateType == PWM_MATCH_UPDATE_NOW)
{
PWMx->TCR |= PWM_TCR_COUNTER_RESET;
PWMx->TCR &= (~PWM_TCR_COUNTER_RESET) & PWM_TCR_BITMASK;
}
}
/********************************************************************//**
* @brief Update value for each PWM channel with update type option
* @param[in] PWMx PWM peripheral selected, should be LPC_PWM1
* @param[in] MatchChannel Match channel
* @param[in] MatchValue Match value
* @param[in] UpdateType Type of Update, should be:
* - PWM_MATCH_UPDATE_NOW: The update value will be updated for
* this channel immediately
* - PWM_MATCH_UPDATE_NEXT_RST: The update value will be updated for
* this channel on next reset by a PWM Match event.
* @return None
*********************************************************************/
void PWM_MatchUpdate(LPC_PWM_TypeDef *PWMx, uint8_t MatchChannel, \
uint32_t MatchValue, uint8_t UpdateType)
{
CHECK_PARAM(PARAM_PWMx(PWMx));
CHECK_PARAM(PARAM_PWM1_MATCH_CHANNEL(MatchChannel));
CHECK_PARAM(PARAM_PWM_MATCH_UPDATE(UpdateType));
switch (MatchChannel)
{
case 0:
PWMx->MR0 = MatchValue;
break;
case 1:
PWMx->MR1 = MatchValue;
break;
case 2:
PWMx->MR2 = MatchValue;
break;
case 3:
PWMx->MR3 = MatchValue;
break;
case 4:
PWMx->MR4 = MatchValue;
break;
case 5:
PWMx->MR5 = MatchValue;
break;
case 6:
PWMx->MR6 = MatchValue;
break;
}
// Write Latch register
PWMx->LER |= PWM_LER_EN_MATCHn_LATCH(MatchChannel);
// In case of update now
if (UpdateType == PWM_MATCH_UPDATE_NOW)
{
PWMx->TCR |= PWM_TCR_COUNTER_RESET;
PWMx->TCR &= (~PWM_TCR_COUNTER_RESET) & PWM_TCR_BITMASK;
}
}
