static void WakeupTest(WKT_CLKSRC_T clkSrc, uint32_t timeoutInSecs, CHIP_PMU_MCUPOWER_T powerTest)
{
/* 10KHz clock source */
Chip_WKT_SetClockSource(LPC_WKT, clkSrc);
/* Setup for wakeup in timeout */
Chip_WKT_LoadCount(LPC_WKT, Chip_WKT_GetClockRate(LPC_WKT) * timeoutInSecs);
/* We can optionally call Chip_SYSCTL_SetDeepSleepPD() to power down the
BOD and WDT if we aren't using them in deep sleep modes. */
Chip_SYSCTL_SetDeepSleepPD(SYSCTL_DEEPSLP_BOD_PD | SYSCTL_DEEPSLP_WDTOSC_PD);
/* We should call Chip_SYSCTL_SetWakeup() to setup any peripherals we want
to power back up on wakeup. For this example, we'll power back up the IRC,
FLASH, the system oscillator, and the PLL */
Chip_SYSCTL_SetWakeup(~(SYSCTL_SLPWAKE_IRCOUT_PD | SYSCTL_SLPWAKE_IRC_PD |
SYSCTL_SLPWAKE_FLASH_PD | SYSCTL_SLPWAKE_SYSOSC_PD | SYSCTL_SLPWAKE_SYSPLL_PD));
/* Tell PMU to go to sleep */
Chip_PMU_Sleep(LPC_PMU, powerTest);
/* Power anything back up here that isn't powered up on wakeup. The example
code below powers back up the BOD and WDT oscillator, which weren't setup to
pwower up in the Chip_SYSCTL_SetWakeup() function. */
Chip_SYSCTL_SetDeepSleepPD(0);
/* Will return here after wakeup and WKT IRQ, LED should be on */
Chip_WKT_Stop(LPC_WKT);
}
/* Handle interrupt from GPIO pin or GPIO pin mapped to PININT */
static void ProcessPowerState(CHIP_PMU_MCUPOWER_T crntPowerSetting)
{
volatile uint32_t tempTimeout;
/* Output power status message, add separating space */
DEBUGSTR("\r\n");
/* Switch on current selected power setting */
switch (crntPowerSetting) {
case PMU_MCU_SLEEP:
default:
DEBUGSTR("-----------------------------------------------------------------\r\n");
DEBUGSTR(" Entering SLEEP power setting\r\n");
DEBUGOUT(" (System will exit SLEEP in %d seconds)\r\n", POWER_CYCLE_SEC_DELAY);
DEBUGSTR("-----------------------------------------------------------------\r\n\r\n");
/* Wait for all serial characters to be output */
DelayForSerialOutput();
/* Enter MCU Sleep mode */
LPC_PWRD_API->power_mode_configure(PMU_SLEEP, (PMU_PD_WDOSC | PMU_PD_BOD | PMU_PD_ACMP0 | PMU_PD_ACMP1 | PMU_PD_ACMP2 |PMU_PD_ACMP3 | PMU_PD_IREF | PMU_PD_TS));
__WFI();
break;
case PMU_MCU_DEEP_SLEEP:
DEBUGSTR("-----------------------------------------------------------------\r\n");
DEBUGSTR(" Entering DEEP SLEEP power setting\r\n");
DEBUGOUT(" (System will exit DEEP SLEEP in %d seconds)\r\n", POWER_CYCLE_SEC_DELAY);
DEBUGSTR("-----------------------------------------------------------------\r\n\r\n");
/* Wait for all serial characters to be output */
DelayForSerialOutput();
/* We should call Chip_SYSCTL_SetWakeup() to setup any peripherals we want
to power back up on wakeup. For this example, we'll power back up the IRC,
FLASH, the system oscillator, and the PLL */
Chip_SYSCTL_SetWakeup(~(SYSCTL_SLPWAKE_IRCOUT_PD | SYSCTL_SLPWAKE_IRC_PD |
SYSCTL_SLPWAKE_FLASH_PD | SYSCTL_SLPWAKE_SYSOSC_PD | SYSCTL_SLPWAKE_SYSPLL_PD));
Chip_SYSCTL_EnableERP1PeriphWakeup(SYSCTL_ERP1_WAKEUP_RTCALARMINT);
/* Enter MCU Deep Sleep mode */
LPC_PWRD_API->power_mode_configure(PMU_DEEP_SLEEP, (PMU_PD_WDOSC | PMU_PD_BOD | PMU_PD_ACMP0 | PMU_PD_ACMP1 | PMU_PD_ACMP2 |PMU_PD_ACMP3 | PMU_PD_IREF | PMU_PD_TS));
__WFI();
break;
case PMU_MCU_POWER_DOWN:
DEBUGSTR("-----------------------------------------------------------------\r\n");
DEBUGSTR(" Entering POWER DOWN power setting\r\n");
DEBUGOUT(" (System will exit POWER DOWN in %d seconds)\r\n", POWER_CYCLE_SEC_DELAY);
DEBUGSTR("-----------------------------------------------------------------\r\n\r\n");
/* Wait for all serial characters to be output */
DelayForSerialOutput();
/* We should call Chip_SYSCTL_SetWakeup() to setup any peripherals we want
to power back up on wakeup. For this example, we'll power back up the IRC,
FLASH, the system oscillator, and the PLL */
Chip_SYSCTL_SetWakeup(~(SYSCTL_SLPWAKE_IRCOUT_PD | SYSCTL_SLPWAKE_IRC_PD |
SYSCTL_SLPWAKE_FLASH_PD | SYSCTL_SLPWAKE_SYSOSC_PD | SYSCTL_SLPWAKE_SYSPLL_PD));
Chip_SYSCTL_EnableERP1PeriphWakeup(SYSCTL_ERP1_WAKEUP_RTCALARMINT);
/* Enter MCU Power down mode */
LPC_PWRD_API->power_mode_configure(PMU_POWERDOWN, (PMU_PD_WDOSC | PMU_PD_BOD | PMU_PD_ACMP0 | PMU_PD_ACMP1 | PMU_PD_ACMP2 |PMU_PD_ACMP3 | PMU_PD_IREF | PMU_PD_TS));
__WFI();
break;
case PMU_MCU_DEEP_PWRDOWN:
DEBUGSTR("-----------------------------------------------------------------\r\n");
DEBUGSTR(" Entering DEEP POWER DOWN power setting\r\n");
DEBUGOUT(" (System will exit DEEP POWER DOWN in %d seconds)\r\n", POWER_CYCLE_SEC_DELAY);
DEBUGSTR("-----------------------------------------------------------------\r\n\r\n");
/* Wait for all serial characters to be output */
DelayForSerialOutput();
/* Enable wakeup from deep power down mode due to RTC Alarm Match */
Chip_RTC_EnableWakeup(LPC_RTC, RTC_CTRL_ALARMDPD_EN);
/* Enter MCU Deep Power down mode */
LPC_PWRD_API->power_mode_configure(PMU_DEEP_POWERDOWN, (PMU_PD_WDOSC | PMU_PD_BOD | PMU_PD_ACMP0 | PMU_PD_ACMP1 | PMU_PD_ACMP2 |PMU_PD_ACMP3 | PMU_PD_IREF | PMU_PD_TS));
__WFI();
break;
}
}
/**
* @brief Main program body
* @return int
*/
int main(void)
{
int stateCounter = 0;
uint32_t ticks = 0;
/* Setup SystemCoreClock and any needed board code */
SystemCoreClockUpdate();
Board_Init();
/* Enable the RTC oscillator, oscillator rate can be determined by
calling Chip_Clock_GetRTCOscRate() */
Chip_Clock_EnableRTCOsc();
/* Initialize RTC driver (enables RTC clocking) */
Chip_RTC_Init(LPC_RTC);
/* Enable RTC as a peripheral wakeup event */
Chip_SYSCTL_EnableERP1PeriphWakeup(SYSCTL_ERP1_WAKEUP_RTCALARMINT |
SYSCTL_ERP1_WAKEUP_RTCWAKEINT);
/* RTC reset */
Chip_RTC_Reset(LPC_RTC);
/* Start RTC at a count of 0 when RTC is disabled. If the RTC is enabled, you
need to disable it before setting the initial RTC count. */
Chip_RTC_Disable(LPC_RTC);
Chip_RTC_SetCount(LPC_RTC, 0);
/* Set a long alarm time so the interrupt won't trigger */
Chip_RTC_SetAlarm(LPC_RTC, 1000);
/* Enable RTC and high resolution timer - this can be done in a single
call with Chip_RTC_EnableOptions(LPC_RTC, (RTC_CTRL_RTC1KHZ_EN | RTC_CTRL_RTC_EN)); */
Chip_RTC_Enable1KHZ(LPC_RTC);
Chip_RTC_Enable(LPC_RTC);
/* Clear latched RTC interrupt statuses */
Chip_RTC_ClearStatus(LPC_RTC, (RTC_CTRL_OFD | RTC_CTRL_ALARM1HZ | RTC_CTRL_WAKE1KHZ));
/* Enable RTC wake and alarm interrupts */
NVIC_EnableIRQ(RTC_ALARM_IRQn);
NVIC_EnableIRQ(RTC_WAKE_IRQn);
/* Enable RTC alarm interrupt */
Chip_RTC_EnableWakeup(LPC_RTC, (RTC_CTRL_ALARMDPD_EN | RTC_CTRL_WAKEDPD_EN));
/* Sleep and do all the work in the RTC interrupt handler */
while (1) {
ticks = 0;
DEBUGOUT("Tick number: %d, 1KHZ int:%d, alarm int:%d\r\n",
stateCounter, rtcWake, rtcAlarm);
rtcWake = rtcAlarm = false;
/* 10 high resolution ticks that get slower each tick */
if (stateCounter < 10) {
/* Wakeup in 300, 400, 500, etc. milliSeconds */
Chip_RTC_SetWake(LPC_RTC, (300 + (stateCounter * 100)));
stateCounter++;
}
else {
DEBUGOUT("Setting alarm to wake up in 4s\r\n");
/* Set alarm to wakeup in 4 seconds */
Chip_RTC_SetAlarm(LPC_RTC, Chip_RTC_GetCount(LPC_RTC) + 4);
stateCounter = 0;
}
Chip_SYSCTL_SetWakeup(~(SYSCTL_SLPWAKE_IRCOUT_PD | SYSCTL_SLPWAKE_IRC_PD |
SYSCTL_SLPWAKE_FLASH_PD | SYSCTL_SLPWAKE_SYSOSC_PD | SYSCTL_SLPWAKE_SYSPLL_PD));
Chip_SYSCTL_EnableERP1PeriphWakeup(SYSCTL_ERP1_WAKEUP_RTCALARMINT | SYSCTL_ERP1_WAKEUP_RTCWAKEINT);
/* Delay to allow serial transmission to complete*/
while(ticks++ < 10000) {}
/* Enter MCU Deep Sleep mode */
Chip_PMU_DeepSleepState(LPC_PMU);
}
return 0;
}
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;
}
