void App_Button_Init(void)
{
ButtonWaiting = 0;
//Initialize the timer for the debouncing, but don't start it
Chip_TIMER_Init(DEBOUNCE_TIMER);
Chip_TIMER_Reset(DEBOUNCE_TIMER);
DEBOUNCE_TIMER->PR = 100;
DEBOUNCE_TIMER->MCR = (1<<1)|(1<<0); //Enable MR0 match interrupt, Reset TC on MR0 match
DEBOUNCE_TIMER->MR[0]= 0xFFFF; //MR0 match value
//Enable the IRQ for the timer
NVIC_EnableIRQ(DEBOUNCE_TIMER_NVIC_NAME);
//Set all button pins to GPIO input with pullup
Chip_IOCON_PinMuxSet(LPC_IOCON, BUTTON_1_PORT, BUTTON_1_PIN, (IOCON_FUNC0 | IOCON_MODE_PULLUP));
Chip_IOCON_PinMuxSet(LPC_IOCON, BUTTON_2_PORT, BUTTON_2_PIN, (IOCON_FUNC0 | IOCON_MODE_PULLUP));
Chip_IOCON_PinMuxSet(LPC_IOCON, BUTTON_3_PORT, BUTTON_3_PIN, (IOCON_FUNC0 | IOCON_MODE_PULLUP));
Chip_IOCON_PinMuxSet(LPC_IOCON, BUTTON_4_PORT, BUTTON_4_PIN, (IOCON_FUNC0 | IOCON_MODE_PULLUP));
Chip_IOCON_PinMuxSet(LPC_IOCON, BUTTON_5_PORT, BUTTON_5_PIN, (IOCON_FUNC0 | IOCON_MODE_PULLUP));
Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_1_PORT, BUTTON_1_PIN);
Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_2_PORT, BUTTON_2_PIN);
Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_3_PORT, BUTTON_3_PIN);
Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_4_PORT, BUTTON_4_PIN);
Chip_GPIO_SetPinDIRInput(LPC_GPIO, BUTTON_5_PORT, BUTTON_5_PIN);
//TODO: Probably put this in the main initalization...
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_PINT);
//Setup GPIO interrupts for each button
/* Configure interrupt channel for the GPIO pin in SysCon block */
Chip_SYSCTL_SetPinInterrupt(BUTTON_1_PININT_INDEX, BUTTON_1_PORT, BUTTON_1_PIN);
Chip_SYSCTL_SetPinInterrupt(BUTTON_2_PININT_INDEX, BUTTON_2_PORT, BUTTON_2_PIN);
Chip_SYSCTL_SetPinInterrupt(BUTTON_3_PININT_INDEX, BUTTON_3_PORT, BUTTON_3_PIN);
Chip_SYSCTL_SetPinInterrupt(BUTTON_4_PININT_INDEX, BUTTON_4_PORT, BUTTON_4_PIN);
Chip_SYSCTL_SetPinInterrupt(BUTTON_5_PININT_INDEX, BUTTON_5_PORT, BUTTON_5_PIN);
/* Configure channel interrupt as edge sensitive and falling edge interrupt */
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(BUTTON_1_PININT_INDEX));
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(BUTTON_2_PININT_INDEX));
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(BUTTON_3_PININT_INDEX));
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(BUTTON_4_PININT_INDEX));
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(BUTTON_5_PININT_INDEX));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(BUTTON_1_PININT_INDEX));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(BUTTON_2_PININT_INDEX));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(BUTTON_3_PININT_INDEX));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(BUTTON_4_PININT_INDEX));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(BUTTON_5_PININT_INDEX));
Chip_PININT_ClearIntStatus(LPC_PININT, ((1 << BUTTON_1_PININT_INDEX)|(1<<BUTTON_2_PININT_INDEX)|(1<<BUTTON_3_PININT_INDEX)|(1<<BUTTON_4_PININT_INDEX)|(1<<BUTTON_5_PININT_INDEX)) );
App_EnableButtons();
return;
}
/**
* @brief Interrupt initialization,
*/
void interruptInit(void) {
Chip_SYSCTL_SetPinInterrupt(0, SW_LEFT);
Chip_SYSCTL_SetPinInterrupt(1, SW_RIGHT);
Chip_PININT_SetPinModeEdge(LPC_PININT,
SW_LEFT_PININTCH | SW_RIGHT_PININTCH);
Chip_PININT_EnableIntLow(LPC_PININT,
SW_LEFT_PININTCH | SW_RIGHT_PININTCH);
Chip_PININT_ClearIntStatus(LPC_PININT,
SW_RIGHT_PININTCH | SW_LEFT_PININTCH);
NVIC_EnableIRQ(SW_LEFT_IRQn);
NVIC_EnableIRQ(SW_RIGHT_IRQn);
}
void SetGPIOPinInterrupt( uint32_t PinIntNo, uint32_t portNum, uint32_t bitPosi, uint32_t edge_trigger, uint32_t event )
{
LPC_GPIO_T *GPIO_PT=LPC_GPIO_PORT; // Don't care variable here
const uint8_t Bit_NO=0; // Don't care variable here
Chip_SYSCTL_SetPinInterrupt(PinIntNo, portNum, bitPosi);
if ( edge_trigger != 0 )
{
// This bit is rising edge
if ( event & 0x01 )
{
Chip_GPIO_IntCmd(GPIO_PT, PinIntNo, Bit_NO, GPIOPININT_RISING_EDGE);
}
// This bit is falling edge
if ( event & 0x02 )
{
Chip_GPIO_IntCmd(GPIO_PT, PinIntNo, Bit_NO, GPIOPININT_FALLING_EDGE);
}
}
else // level trigger
{
// Level Trigger
if ( event != 0 )
{
// Level, High
Chip_GPIO_IntCmd(GPIO_PT, PinIntNo, Bit_NO, GPIOPININT_ACTIVE_HIGH_LEVEL);
}
else
{
// Level, Low
Chip_GPIO_IntCmd(GPIO_PT, PinIntNo, Bit_NO, GPIOPININT_ACTIVE_LOW_LEVEL);
}
}
}
void Board_Attach_Interrupt(uint32_t ulPin, void (*callback)(void), uint32_t mode)
{
uint8_t port = 1;
uint8_t pin = 24;
uint8_t pinIntChannel = 0;
LPC1347_IRQn_Type pinIntIRQ = PIN_INT0_IRQn;
port = APIN_PORT(ulPin);
pin = APIN_PIN(ulPin);
pinIntChannel = APIN_INT(ulPin);
if(pinIntChannel == EXT_INT_0)
{
pinIntIRQ = PIN_INT0_IRQn;
callbackPinIntA = callback;
}
else if(pinIntChannel == EXT_INT_1)
{
pinIntIRQ = PIN_INT1_IRQn;
callbackPinIntB = callback;
}
else if(pinIntChannel == EXT_INT_2)
{
pinIntIRQ = PIN_INT2_IRQn;
callbackPinIntC = callback;
}
else if(pinIntChannel == EXT_INT_3)
{
pinIntIRQ = PIN_INT3_IRQn;
callbackPinIntD = callback;
}
/* Configure GPIO pin as input */
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, port, pin);
/* Configure pin as GPIO with pulldown */
// All digital pins are selected such that GPIO is on IOCON_FUNC0
Chip_IOCON_PinMuxSet(LPC_IOCON, port, pin, (IOCON_FUNC0 | IOCON_MODE_PULLDOWN));
/* Enable PININT clock */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_PINT);
/* Configure interrupt channel for the GPIO pin in SysCon block */
Chip_SYSCTL_SetPinInterrupt(pinIntChannel, port, pin);
/* Configure channel interrupt as edge sensitive and falling edge interrupt */
Chip_PININT_ClearIntStatus(LPC_PININT, PININTCH(pinIntChannel));
if(mode == HIGH)
{
Chip_PININT_SetPinModeLevel(LPC_PININT, PININTCH(pinIntChannel));
Chip_PININT_EnableIntHigh(LPC_PININT, PININTCH(pinIntChannel));
}
else if(mode == LOW)
{
Chip_PININT_SetPinModeLevel(LPC_PININT, PININTCH(pinIntChannel));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(pinIntChannel));
}
else if(mode == RISING)
{
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(pinIntChannel));
Chip_PININT_EnableIntHigh(LPC_PININT, PININTCH(pinIntChannel));
}
else if(mode == FALLING)
{
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(pinIntChannel));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(pinIntChannel));
}
else if(mode == CHANGE)
{
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(pinIntChannel));
Chip_PININT_EnableIntHigh(LPC_PININT, PININTCH(pinIntChannel));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(pinIntChannel));
}
/* Enable interrupt in the NVIC */
NVIC_ClearPendingIRQ(pinIntIRQ);
NVIC_EnableIRQ(pinIntIRQ);
}
int32_t main(void) {
int32_t i,cnt=0;
uint8_t RC5_System_prev=0;
uint8_t RC5_Command_prev=0;
CHIP_PMU_MCUPOWER_T mcupower=PMU_MCU_SLEEP;
SystemCoreClockUpdate();
// init GPIO
Chip_GPIO_Init(LPC_GPIO_PORT);
Chip_SYSCTL_PeriphReset(RESET_GPIO);
// init SPI0 at SystemCoreClock speed
Chip_SPI_Init(LPC_SPI0);
Chip_SPI_ConfigureSPI(LPC_SPI0,SPI_MODE_MASTER|
SPI_CLOCK_CPHA0_CPOL0|
SPI_DATA_MSB_FIRST|
SPI_SSEL_ACTIVE_LO);
LPC_SPI0->DIV=0;
Chip_SPI_Enable(LPC_SPI0);
// init MRT
Chip_MRT_Init();
// init SWM
Chip_SWM_Init();
Chip_SWM_DisableFixedPin(SWM_FIXED_SWCLK);//PIO0_3
Chip_SWM_DisableFixedPin(SWM_FIXED_SWDIO);//PIO0_2
Chip_SWM_DisableFixedPin(SWM_FIXED_ACMP_I2);//PIO0_1
Chip_SWM_DisableFixedPin(SWM_FIXED_ACMP_I1);//PIO0_0
Chip_SWM_MovablePinAssign(SWM_SPI0_SCK_IO,CLK_PIN);
Chip_SWM_MovablePinAssign(SWM_SPI0_MOSI_IO,MOSI_PIN);
Chip_SWM_MovablePinAssign(SWM_CTIN_0_I,IR_PIN);
Chip_SWM_Deinit();
// init onboard LED
Chip_GPIO_SetPinState(LPC_GPIO_PORT,0,LED_PIN,true);
Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT,0,LED_PIN);
// init LCD reset pin
Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT,0,RESET_PIN);
// init LCD
LCDInit();
LCDClearScreenBlack();
// init SCT
Chip_SCT_Init(LPC_SCT);
// set prescaler, SCT clock = 1 MHz, clear counter
LPC_SCT->CTRL_L |= SCT_CTRL_PRE_L(SystemCoreClock/1000000-1) | SCT_CTRL_CLRCTR_L;
sct_fsm_init();
NVIC_EnableIRQ(SCT_IRQn);
// init PIO0_3 pin interrupt for wakeup from sleep mode
Chip_SYSCTL_SetPinInterrupt(IR_IRQ,IR_PIN);
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(IR_IRQ));
NVIC_EnableIRQ(PININT3_IRQn);
Chip_SYSCTL_EnablePINTWakeup(IR_IRQ);
// set sleep options
Chip_SYSCTL_SetDeepSleepPD(SYSCTL_DEEPSLP_BOD_PD | SYSCTL_DEEPSLP_WDTOSC_PD);
Chip_SYSCTL_SetWakeup(~(SYSCTL_SLPWAKE_IRCOUT_PD | SYSCTL_SLPWAKE_IRC_PD | SYSCTL_SLPWAKE_FLASH_PD ));
LCDPutStr("kbiva.wordpress.com", MAX_X / 2 + 50, 10, WHITE, BLACK);
LCDPutStr("RC5 Decoder", MAX_X / 2 + 35, 35, WHITE, BLACK);
LCDPutStr("Frame:", MAX_X / 2 + 20, 1, WHITE, BLACK);
LCDPutStr("System:", MAX_X / 2 + 5 , 1, WHITE, BLACK);
LCDPutStr("Cmd:", MAX_X / 2 - 10, 1, WHITE, BLACK);
LCDPutStr("Toggle:", MAX_X / 2 - 25, 1, WHITE, BLACK);
LCDPutStr("Count:", MAX_X / 2 - 40, 1, WHITE, BLACK);
while (1) {
// put chip to sleep
switch(mcupower) {
case PMU_MCU_SLEEP:
default:
LCDPutStr("SLEEP ", MAX_X / 2 - 60, 10, WHITE, BLACK);
Chip_PMU_SleepState(LPC_PMU);
break;
case PMU_MCU_DEEP_SLEEP:
LCDPutStr("DEEP-SLEEP", MAX_X / 2 - 60, 10, WHITE, BLACK);
Chip_PMU_DeepSleepState(LPC_PMU);
break;
case PMU_MCU_POWER_DOWN:
LCDPutStr("POWER-DOWN", MAX_X / 2 - 60, 10, WHITE, BLACK);
Chip_PMU_PowerDownState(LPC_PMU);
break;
}
// start MRT timer channel 0
Chip_MRT_SetInterval(LPC_MRT_CH0, SystemCoreClock | MRT_INTVAL_LOAD);
Chip_MRT_SetMode(LPC_MRT_CH0,MRT_MODE_ONESHOT);
Chip_MRT_SetEnabled(LPC_MRT_CH0);
// turn on onboard LED
Chip_GPIO_SetPinState(LPC_GPIO_PORT,0,LED_PIN,false);
// start SCT
LPC_SCT->CTRL_L &= ~SCT_CTRL_HALT_L;
// wait for timeout
while(!RC5_timeout)
{};
// stop SCT
LPC_SCT->CTRL_L |= SCT_CTRL_HALT_L;
if (RC5_flag) {
// if frame received, output information on LCD
if((RC5_System != RC5_System_prev) || (RC5_Command != RC5_Command_prev)) {
cnt = 1;
}
else {
cnt++;
}
for (i = 3; i >= 0; i--){
LCDPutChar(ascii[(RC5_Frame >> (i * 4)) & 0x0F],MAX_X / 2 + 20,80+(3-i)*7,WHITE, BLACK);
if(i < 2) {
if((RC5_System!=RC5_System_prev) || (RC5_Command!=RC5_Command_prev)){
LCDPutChar(ascii[(RC5_System >> (i * 4)) & 0x0F],MAX_X / 2 + 5,66+(3-i)*7,WHITE, BLACK);
LCDPutChar(ascii[(RC5_Command >> (i * 4)) & 0x0F],MAX_X / 2 - 10,66+(3-i)*7,WHITE, BLACK);
}
}
LCDPutChar(ascii[(cnt >> (i * 4)) & 0x0F],MAX_X / 2 - 40,80+(3-i)*7,WHITE, BLACK);
}
LCDPutStr(RC5_Toggle ? "ON ":"OFF", MAX_X / 2 - 25, 80, WHITE, BLACK);
switch(RC5_Command) {
case 0x50:
mcupower = PMU_MCU_SLEEP;
break;
case 0x55:
if(RC5_Toggle){
spi0Transfer(SLEEPOUT);
spi0Transfer(DISPON);
}
else {
spi0Transfer(DISPOFF);
spi0Transfer(SLEEPIN);
}
break;
case 0x56:
mcupower = PMU_MCU_DEEP_SLEEP;
break;
case 0x6B:
mcupower = PMU_MCU_POWER_DOWN;
break;
}
RC5_System_prev = RC5_System;
RC5_Command_prev = RC5_Command;
}
// turn off onboard LED
Chip_GPIO_SetPinState(LPC_GPIO_PORT,0,LED_PIN,true);
// clear flags
RC5_flag = 0;
RC5_timeout = 0;
}
void Chip_ADS1248_Init()
{
Chip_SSP_DeInit(ADS_SSP); //Clear previous setup
Chip_GPIO_Init(LPC_GPIO); //Init GPIO
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_IOCON);
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_SCLK, IOCON_FUNC2); //SCLK
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_MOSI, IOCON_FUNC2); //MOSI
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_MISO, IOCON_FUNC2); //MISO
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_nSSEL1, IOCON_FUNC0 | IOCON_MODE_PULLUP);
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_START1, IOCON_FUNC0 | IOCON_MODE_PULLUP);
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_nRESET1,IOCON_FUNC0 | IOCON_MODE_PULLUP);
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_nSSEL0, IOCON_FUNC0 | IOCON_MODE_PULLUP);
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_START0, IOCON_FUNC0 | IOCON_MODE_PULLUP);
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_nRESET0,IOCON_FUNC0 | IOCON_MODE_PULLUP);
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_nDRDY0, IOCON_FUNC0 | IOCON_MODE_PULLUP);
Chip_IOCON_PinMuxSet(LPC_IOCON, ADS_nDRDY1, IOCON_FUNC0 | IOCON_MODE_PULLUP);
Chip_GPIO_SetPinDIROutput(LPC_GPIO, ADS_nSSEL1);
Chip_GPIO_SetPinDIROutput(LPC_GPIO, ADS_START1);
Chip_GPIO_SetPinDIROutput(LPC_GPIO, ADS_nRESET1);
Chip_GPIO_SetPinDIROutput(LPC_GPIO, ADS_nSSEL0);
Chip_GPIO_SetPinDIROutput(LPC_GPIO, ADS_START0);
Chip_GPIO_SetPinDIROutput(LPC_GPIO, ADS_nRESET0);
Chip_GPIO_SetPinDIRInput(LPC_GPIO, ADS_nDRDY0);
Chip_GPIO_SetPinDIRInput(LPC_GPIO, ADS_nDRDY1);
Chip_GPIO_SetPinOutHigh(LPC_GPIO, ADS_nSSEL1);
Chip_GPIO_SetPinOutHigh(LPC_GPIO, ADS_nRESET1);
Chip_GPIO_SetPinOutHigh(LPC_GPIO, ADS_START1);
Chip_GPIO_SetPinOutHigh(LPC_GPIO, ADS_nSSEL0);
Chip_GPIO_SetPinOutHigh(LPC_GPIO, ADS_nRESET0);
Chip_GPIO_SetPinOutHigh(LPC_GPIO, ADS_START0);
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_PINT);
Chip_SYSCTL_SetPinInterrupt(0, ADS_nDRDY0);
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(0));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(0));
Chip_SYSCTL_EnablePINTWakeup(0);
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_PINT);
Chip_SYSCTL_SetPinInterrupt(1, ADS_nDRDY1);
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(1));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(1));
Chip_SYSCTL_EnablePINTWakeup(1);
Chip_SSP_Init(ADS_SSP);
ssp_format.frameFormat = SSP_FRAMEFORMAT_SPI; //SPI Frame
ssp_format.bits = SSP_BITS_8; //8bits
ssp_format.clockMode = SSP_CLOCK_CPHA1_CPOL0; //CPHA=1, CPOL=0
Chip_SSP_SetFormat(ADS_SSP, ssp_format.bits, ssp_format.frameFormat, ssp_format.clockMode);
Chip_SSP_Set_Mode(ADS_SSP, SSP_MODE_MASTER);
Chip_SSP_SetClockRate(ADS_SSP, 1, 16);
Chip_Clock_SetSSP1ClockDiv(1);
Chip_SSP_Enable(ADS_SSP);
ADS1248_PeriphInit(CHIP_U1);
ADS1248_PeriphInit(CHIP_U3);
}
