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#include "intp.h"
/**
* @brief This function initializes the external interrupt module.
* @param Intp_InitStruct: pointer to a INTP_InitTypeDef structure that contains
* the configuration information for the specified INTP peripheral.
* @retval None
*/
void INTP_Init(INTP_InitTypeDef* Intp_InitStruct)
{
volatile uint8_t w_count;
uint16_t pinpos = 0x00,pinnum=0x00, pos = 0x00, currentpin = 0x00;
/* Check the parameters */
assert_param(IS_INTP_TYPE(Intp_InitStruct->INTP_Select));
for(pinpos = 0x00; pinpos < INTP_MAX; pinpos++)
{
pos = ((uint16_t)0x01) << pinpos;
pinnum = Intp_InitStruct->INTP_Select & pos;
if(pinnum == pos)
{
currentpin = pinpos;
break;
}
}
if(Intp_InitStruct->INTP_Select < INTP8)
{
INTM->EGN0 &= ~Intp_InitStruct->INTP_Select;
INTM->EGP0 &= ~Intp_InitStruct->INTP_Select;
INTM->EGN0 |= ((Intp_InitStruct->EXTI_Trigger & 0x01U) >> 0) << currentpin;
INTM->EGP0 |= ((Intp_InitStruct->EXTI_Trigger & 0x02U) >> 1) << currentpin;
}
else
{
INTM->EGN1 &= ~Intp_InitStruct->INTP_Select;
INTM->EGP1 &= ~Intp_InitStruct->INTP_Select;
INTM->EGN1 |= ((Intp_InitStruct->EXTI_Trigger & 0x01U) >> 0) << (currentpin-8);
INTM->EGP1 |= ((Intp_InitStruct->EXTI_Trigger & 0x02U) >> 1) << (currentpin-8);
}
for (w_count = 0U; w_count <= KEY_WAITTIME; w_count++)
{
__NOP();
}
}
/**
* @brief This function clears INTP interrupt flag and enables interrupt.
* @param pinMsk:select the active external interrupt pins
* @arg INTP0/INTP1/INTP2/INTP3
* @retval None
*/
void INTP_Start(uint16_t pinMsk)
{
if(pinMsk & (1 << 0))
{
INTC_ClearPendingIRQ(INTP0_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP0_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 1))
{
INTC_ClearPendingIRQ(INTP1_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP1_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 2))
{
INTC_ClearPendingIRQ(INTP2_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP2_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 3))
{
INTC_ClearPendingIRQ(INTP3_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP3_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 4))
{
INTC_ClearPendingIRQ(INTP4_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP4_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 5))
{
INTC_ClearPendingIRQ(INTP5_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP5_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 6))
{
INTC_ClearPendingIRQ(INTP6_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP6_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 7))
{
INTC_ClearPendingIRQ(INTP7_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP7_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 8))
{
INTC_ClearPendingIRQ(INTP8_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP8_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 9))
{
INTC_ClearPendingIRQ(INTP9_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP9_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 10))
{
INTC_ClearPendingIRQ(INTP10_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP10_IRQn); /* enable INTP interrupt */
}
if(pinMsk & (1 << 11))
{
INTC_ClearPendingIRQ(INTP11_IRQn); /* clear INTP interrupt flag */
INTC_EnableIRQ(INTP11_IRQn); /* enable INTP interrupt */
}
}
/**
* @brief This function disables INTP interrupt and clears interrupt flag.
* @param pinMsk:select the active external interrupt pins
* @arg INTP0/INTP1/INTP2/INTP3
* @retval None
*/
void INTP_Stop(uint16_t pinMsk)
{
if(pinMsk & (1 << 0))
{
INTC_DisableIRQ(INTP0_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP0_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 1))
{
INTC_DisableIRQ(INTP1_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP1_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 2))
{
INTC_DisableIRQ(INTP2_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP2_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 3))
{
INTC_DisableIRQ(INTP3_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP3_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 4))
{
INTC_DisableIRQ(INTP4_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP4_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 5))
{
INTC_DisableIRQ(INTP5_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP5_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 6))
{
INTC_DisableIRQ(INTP6_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP6_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 7))
{
INTC_DisableIRQ(INTP7_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP7_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 8))
{
INTC_DisableIRQ(INTP8_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP8_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 9))
{
INTC_DisableIRQ(INTP9_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP9_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 10))
{
INTC_DisableIRQ(INTP10_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP10_IRQn); /* clear INTP interrupt flag */
}
if(pinMsk & (1 << 11))
{
INTC_DisableIRQ(INTP11_IRQn); /* disable INTP interrupt */
INTC_ClearPendingIRQ(INTP11_IRQn); /* clear INTP interrupt flag */
}
}