void Board_Buttons_Init(void)
{
buttonsData[0].callbackSw=NULL;
buttonsData[1].callbackSw=NULL;
buttonsData[2].callbackSw=NULL;
buttonsData[3].callbackSw=NULL;
Chip_SCU_PinMuxSet(0x1, 0, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC0)); // P1_0 as GPIO0[4]
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTONS_BUTTON1_GPIO_PORT_NUM, BUTTONS_BUTTON1_GPIO_BIT_NUM); // input
Chip_SCU_GPIOIntPinSel(0, 0, 4); // GPIO0[4] to INT0
Chip_PININT_ClearIntStatus(LPC_GPIO_PIN_INT, PININTCH(0)); // INT0
Chip_PININT_SetPinModeEdge(LPC_GPIO_PIN_INT, PININTCH(0)); // INT0
Chip_PININT_EnableIntLow(LPC_GPIO_PIN_INT, PININTCH(0)); // INT0
NVIC_ClearPendingIRQ(PIN_INT0_IRQn);
NVIC_EnableIRQ(PIN_INT0_IRQn);
Chip_SCU_PinMuxSet(0x1, 1, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC0)); // P1_1 as GPIO0[8]
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTONS_BUTTON2_GPIO_PORT_NUM, BUTTONS_BUTTON2_GPIO_BIT_NUM); // input
Chip_SCU_GPIOIntPinSel(1, 0, 8); // GPIO0[8] to INT1
Chip_PININT_ClearIntStatus(LPC_GPIO_PIN_INT, PININTCH(1)); // INT1
Chip_PININT_SetPinModeEdge(LPC_GPIO_PIN_INT, PININTCH(1)); // INT1
Chip_PININT_EnableIntLow(LPC_GPIO_PIN_INT, PININTCH(1)); // INT1
NVIC_ClearPendingIRQ(PIN_INT1_IRQn);
NVIC_EnableIRQ(PIN_INT1_IRQn);
Chip_SCU_PinMuxSet(0x1, 2, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC0)); // P1_2 as GPIO0[9]
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTONS_BUTTON3_GPIO_PORT_NUM, BUTTONS_BUTTON3_GPIO_BIT_NUM); // input
Chip_SCU_GPIOIntPinSel(2, 0, 9); // GPIO0[9] to INT2
Chip_PININT_ClearIntStatus(LPC_GPIO_PIN_INT, PININTCH(2)); // INT2
Chip_PININT_SetPinModeEdge(LPC_GPIO_PIN_INT, PININTCH(2)); // INT2
Chip_PININT_EnableIntLow(LPC_GPIO_PIN_INT, PININTCH(2)); // INT2
NVIC_ClearPendingIRQ(PIN_INT2_IRQn);
NVIC_EnableIRQ(PIN_INT2_IRQn);
Chip_SCU_PinMuxSet(0x1, 6, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC0)); // P1_6 as GPIO1[9]
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTONS_BUTTON4_GPIO_PORT_NUM, BUTTONS_BUTTON4_GPIO_BIT_NUM); // input
Chip_SCU_GPIOIntPinSel(3, 1, 9); // GPIO1[9] to INT3
Chip_PININT_ClearIntStatus(LPC_GPIO_PIN_INT, PININTCH(3)); // INT3
Chip_PININT_SetPinModeEdge(LPC_GPIO_PIN_INT, PININTCH(3)); // INT3
Chip_PININT_EnableIntLow(LPC_GPIO_PIN_INT, PININTCH(3)); // INT3
NVIC_ClearPendingIRQ(PIN_INT3_IRQn);
NVIC_EnableIRQ(PIN_INT3_IRQn);
}
static void initHardware(void)
{
SystemCoreClockUpdate();
Board_Init();
ciaaIOInit();
ciaaUARTInit();
ciaaWriteOutput(0, 0);
//BOTON 1
Chip_PININT_Init(LPC_GPIO_PIN_INT);
//Set GPIO0[4] (SW1) -> GPIO0_IRQHandler
Chip_SCU_GPIOIntPinSel(0,0,4);
//falling edge IRQ
Chip_PININT_SetPinModeEdge(LPC_GPIO_PIN_INT,PININTCH0);
Chip_PININT_EnableIntLow(LPC_GPIO_PIN_INT,PININTCH0);
//habilitar la IRQ
NVIC_EnableIRQ(PIN_INT0_IRQn);
//BOTON 2
//Set GPIO0[4] (SW1) -> GPIO0_IRQHandler
Chip_SCU_GPIOIntPinSel(1,1,9);
//falling edge IRQ
Chip_PININT_SetPinModeEdge(LPC_GPIO_PIN_INT,PININTCH1);
Chip_PININT_EnableIntLow(LPC_GPIO_PIN_INT,PININTCH1);
//habilitar la IRQ
NVIC_EnableIRQ(PIN_INT1_IRQn);
}
//BOTON 4
// 0 Low - 1 High
void ciaaIO_ISR_SetButton4(uint8_t LowOrHigh)
{
//Set GPIO1[9]
Chip_SCU_GPIOIntPinSel(3,1,9);
Chip_PININT_SetPinModeEdge(LPC_GPIO_PIN_INT,PININTCH3);
if (LowOrHigh)
{
Chip_PININT_EnableIntHigh(LPC_GPIO_PIN_INT,PININTCH3);
}
else
{
Chip_PININT_EnableIntLow(LPC_GPIO_PIN_INT,PININTCH3);
}
//habilitar la IRQ
NVIC_EnableIRQ(PIN_INT3_IRQn);
}
//BOTON 2
// 0 Low - 1 High
void ciaaIO_ISR_SetButton2(uint8_t LowOrHigh)
{
//Set GPIO0[8]
Chip_SCU_GPIOIntPinSel(1,0,8);
Chip_PININT_SetPinModeEdge(LPC_GPIO_PIN_INT,PININTCH1);
if (LowOrHigh)
{
Chip_PININT_EnableIntHigh(LPC_GPIO_PIN_INT,PININTCH1);
}
else
{
Chip_PININT_EnableIntLow(LPC_GPIO_PIN_INT,PININTCH1);
}
//habilitar la IRQ
NVIC_EnableIRQ(PIN_INT1_IRQn);
}
bool Board_GPIOs_enableIntCallback(int gpioNumber,void(*function)(void*),void* arg, uint8_t flagEdgeLevel, uint8_t flagHighLow)
{
// check if gpio alerady has assigned int
for(uint8_t i=0; i<4 ; i++)
{
if(extIntData[i].callback!=NULL && extIntData[i].gpioNumber==gpioNumber)
return 0;
}
// find free extInt callback
for(uint8_t i=0; i<4 ; i++)
{
if(extIntData[i].callback==NULL)
{
extIntData[i].callback = function;
extIntData[i].callbackArg = arg;
extIntData[i].gpioNumber=gpioNumber;
// Enable interrupt
uint8_t intNumber = i + 4; // starts from INT4
Chip_SCU_GPIOIntPinSel(intNumber, gpiosInfo[gpioNumber].gpio, gpiosInfo[gpioNumber].gpioBit);
Chip_PININT_ClearIntStatus(LPC_GPIO_PIN_INT, PININTCH(intNumber));
if(flagEdgeLevel)
Chip_PININT_SetPinModeEdge(LPC_GPIO_PIN_INT, PININTCH(intNumber));
else
Chip_PININT_SetPinModeLevel(LPC_GPIO_PIN_INT, PININTCH(intNumber));
if(flagHighLow)
Chip_PININT_EnableIntHigh(LPC_GPIO_PIN_INT, PININTCH(intNumber));
else
Chip_PININT_EnableIntLow(LPC_GPIO_PIN_INT, PININTCH(intNumber));
switch(intNumber) {
case 4: NVIC_ClearPendingIRQ(PIN_INT4_IRQn); NVIC_EnableIRQ(PIN_INT4_IRQn); break;
case 5: NVIC_ClearPendingIRQ(PIN_INT5_IRQn); NVIC_EnableIRQ(PIN_INT5_IRQn); break;
case 6: NVIC_ClearPendingIRQ(PIN_INT6_IRQn); NVIC_EnableIRQ(PIN_INT6_IRQn); break;
case 7: NVIC_ClearPendingIRQ(PIN_INT7_IRQn); NVIC_EnableIRQ(PIN_INT7_IRQn); break;
}
return 1;
}
}
return 0;
}
