/**
* @brief Application main function
* @return Does not return
*/
int main(void)
{
/* Board Initialization */
SystemCoreClockUpdate();
Board_Init();
/* Clock enables and checks */
if (CLKOUT_SEL == SYSCON_CLKOUTSRC_RTC) {
/* Turn on the RTC 32K Oscillator */
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_32K_OSC);
Chip_Clock_EnableRTCOsc();
}
else if (CLKOUT_SEL == SYSCON_CLKOUTSRC_WDTOSC) {
/* Enable the power to the WDT Oscillator */
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_WDT_OSC);
}
else if (CLKOUT_SEL == SYSCON_CLKOUTSRC_CLKIN) {
/* Setup CLKIN via IOCON (pin muxing) */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 22,
(IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGITAL_EN));
if (Chip_Clock_GetExtClockInRate() == 0) {
/* Can't continue, stop! */
DEBUGSTR("CLKIN selected for CLKOUT, but CLKIN rate is 0\r\n");
while (1) {}
}
}
/* Map P0.21 as CLKOUT pin */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 21,
(IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGITAL_EN));
/* There isn't too much to this example */
Chip_Clock_SetCLKOUTSource(CLKOUT_SEL, CLKOUT_DIV);
return 0;
}
/* Wecan Modify platform_rtc_init 2015.06.10 */
OSStatus platform_rtc_init(void)
{
#ifdef MICO_ENABLE_MCU_RTC
/* CLKOUT = 32K_Osc */
Chip_IOCON_PinMuxSet(LPC_IOCON, platform_gpio_pins[CLKOUT].port , platform_gpio_pins[CLKOUT].pin_number, (IOCON_MODE_PULLUP | IOCON_FUNC1 | IOCON_DIGITAL_EN | IOCON_INPFILT_OFF));
Chip_Clock_SetCLKOUTSource(SYSCON_CLKOUTSRC_RTC, 1);
/* Turn on the RTC 32K Oscillator */
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_32K_OSC);
/* 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_SYSCON_EnsableWakeup(SYSCON_STARTER_RTC);
/* 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);
platform_rtc_set_time(&default_rtc_time);
//Chip_RTC_SetCount(LPC_RTC, 0);
/* Set a long alarm time so the interrupt won't trigger */
//Chip_RTC_SetAlarm(LPC_RTC, (Chip_RTC_GetCount(LPC_RTC) + 5));
/* 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));
return kNoErr;
#else
return kUnsupportedErr;
#endif
}
/* Initialize the ADC ROM Driver */
static int adcrom_init(void)
{
volatile int size_in_bytes;
ADC_PinMuxSetup();
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_ADC0 | SYSCON_PDRUNCFG_PD_VDDA_ENA | SYSCON_PDRUNCFG_PD_VREFP);
Chip_Clock_EnablePeriphClock(SYSCON_CLOCK_ADC0);
Chip_Clock_SetADCClockSource(SYSCON_ADCCLKSELSRC_MAINCLK);
Chip_Clock_SetADCClockDiv(0x1);
size_in_bytes = ROM_ADC_GetMemSize();
if (RAMBLOCK_H < (size_in_bytes / 4)) {
return 1;
}
hADC = ROM_ADC_Init(start_of_ram_block0, LPC_ADC_BASE, 0);
return 0;
}
/* Clock and PLL initialization based on the internal oscillator */
void Chip_SetupIrcClocking(uint32_t iFreq)
{
PLL_CONFIG_T pllConfig;
PLL_SETUP_T pllSetup;
PLL_ERROR_T pllError;
/* Turn on the IRC by clearing the power down bit */
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_IRC_OSC | SYSCON_PDRUNCFG_PD_IRC);
/* Select the PLL input to the IRC */
Chip_Clock_SetSystemPLLSource(SYSCON_PLLCLKSRC_IRC);
/* Setup FLASH access */
setupFlashClocks(iFreq);
/* Power down PLL to change the PLL divider ratio */
Chip_SYSCON_PowerDown(SYSCON_PDRUNCFG_PD_SYS_PLL);
/* Setup PLL configuration */
pllConfig.desiredRate = iFreq;
pllConfig.InputRate = 0;
pllConfig.flags = PLL_CONFIGFLAG_FORCENOFRACT;
pllError = Chip_Clock_SetupPLLData(&pllConfig, &pllSetup);
if (pllError == PLL_ERROR_SUCCESS) {
pllSetup.flags = PLL_SETUPFLAG_WAITLOCK | PLL_SETUPFLAG_ADGVOLT;
pllError = Chip_Clock_SetupSystemPLLPrec(&pllSetup);
}
Chip_Clock_SetSysClockDiv(1);
Chip_Clock_SetMainClockSource(SYSCON_MAINCLKSRC_PLLOUT);
//Chip_Clock_SetCLKOUTSource(SYSCON_CLKOUTSRC_MAINCLK, 1);
/* ASYSNC SYSCON needs to be on or all serial peripheral won't work.
Be careful if PLL is used or not, ASYNC_SYSCON source needs to be
selected carefully. */
Chip_SYSCON_Enable_ASYNC_Syscon(true);
Chip_Clock_SetAsyncSysconClockDiv(4);
Chip_Clock_SetAsyncSysconClockSource(SYSCON_ASYNC_MAINCLK);//SYSCON_ASYNC_IRC);//SYSCON_ASYNC_SYSPLLOUT
}
/**
* @brief main routine for bown-out example
* @return Function should not exit.
*/
int main(void)
{
/* Generic Initialization */
SystemCoreClockUpdate();
Board_Init();
Board_LED_Set(0, false);
Board_LED_Set(1, false);
Board_LED_Set(2, false);
/* If the board was reset due to a BOD event, the reset can be
detected here. Turn on LED0 if reset occured due to BOD. */
if ((Chip_SYSCON_GetSystemRSTStatus() & SYSCON_RST_BOD) != 0) {
Chip_SYSCON_ClearSystemRSTStatus(SYSCON_RST_BOD);
Board_LED_Set(0, true);
}
/* Enable BOD power */
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_BOD_RST | SYSCON_PDRUNCFG_PD_BOD_INTR);
/* Set BOD detection interrupt to 3.05v and device reset to 1.5v */
Chip_PMU_SetBODLevels(PMU_BODRSTLVL_1_50V, PMU_BODINTVAL_3_05v);
/* Enable BOD reset and interrupt on low power level */
Chip_PMU_EnableBODReset();
Chip_PMU_EnableBODInt();
/* Enable BOD interrupt */
NVIC_EnableIRQ(BOD_IRQn);
/* Wait forever */
while (1) {
__WFI();
}
return 0;
}
/**
* @brief Main program body
* @return int
*/
int main(void)
{
uint32_t rtcCount;
/* Starting time for this example used to set the RTC */
struct tm startTime = {
56, /* tm_sec, seconds after the minute, 0 to 59 */
59, /* tm_min, minutes after the hour, 0 to 59 */
23, /* tm_hour, hours since midnight, 0 to 23 */
25, /* tm_mday, day of the month, 1 to 31 */
9, /* tm_mon, months since January, 0 to 11 */
(2014 - TM_YEAR_BASE), /* tm_year, years since base year (1900) */
/* The following 3 fields are not used by the ConvertTimeRtc() function,
while the ConvertRtcTime() fucntion will generate data in them from an
RTC tick (except tm_isdst) */
0, /* tm_wday, days since Sunday, 0 to 6 */
0, /* tm_yday, days since January 1, 0 to 365 */
0 /* tm_isdst, Daylight Savings Time flag */
};
/* Setup SystemCoreClock and any needed board code */
SystemCoreClockUpdate();
Board_Init();
Board_LED_Set(0, false);
/* Turn on the RTC 32K Oscillator */
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_32K_OSC);
/* 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);
/* 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);
/* COnvert tm structure to RTC tick count */
ConvertTimeRtc(&startTime, &rtcCount);
Chip_RTC_SetCount(LPC_RTC, rtcCount);
/* Set alarm to wakeup in 5s */
DEBUGOUT("Setting alarm to trigger in 5s\r\n");
rtcCount += 5;
Chip_RTC_SetAlarm(LPC_RTC, rtcCount);
/* Enable 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 interrupt */
NVIC_EnableIRQ(RTC_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) {
/* 10 high resolution ticks that get slower each tick */
if (rtcAlarm) {
/* Will not reset alarm */
DEBUGOUT("Alarm triggered, alarm reset to trigger in 5s\r\n");
rtcCount = Chip_RTC_GetCount(LPC_RTC) + 5;
Chip_RTC_SetAlarm(LPC_RTC, rtcCount);
rtcAlarm = false;
}
/* Show RTC time in UT format */
showTime(Chip_RTC_GetCount(LPC_RTC));
/* Sleep while waiting for alarm */
__WFI();
}
return 0;
}
/**
* @brief Main program body
* @return Does not return
*/
int main(void)
{
/* Generic Initialization */
SystemCoreClockUpdate();
/* Board_Init calls Chip_GPIO_Init and enables GPIO clock if needed,
Chip_GPIO_Init is not called again */
Board_Init();
Board_LED_Set(0, false);
Chip_PININT_Init(LPC_PININT);
/* Configure GPIO pin as input */
Chip_GPIO_SetPinDIRInput(LPC_GPIO, GPIO_PININT_PORT, GPIO_PININT_PIN);
/* Configure pin as GPIO */
Chip_IOCON_PinMuxSet(LPC_IOCON, GPIO_PININT_PORT, GPIO_PININT_PIN,
(IOCON_FUNC0 | IOCON_DIGITAL_EN | IOCON_GPIO_MODE));
/* Configure pin interrupt selection for the GPIO pin in Input Mux Block */
Chip_INMUX_PinIntSel(GPIO_PININT_INDEX, GPIO_PININT_PORT, GPIO_PININT_PIN);
/* Configure channel interrupt as edge sensitive and falling edge interrupt */
Chip_PININT_ClearIntStatus(LPC_PININT, PININTCH(GPIO_PININT_INDEX));
Chip_PININT_SetPinModeEdge(LPC_PININT, PININTCH(GPIO_PININT_INDEX));
Chip_PININT_EnableIntLow(LPC_PININT, PININTCH(GPIO_PININT_INDEX));
/* Enable interrupt in the NVIC */
NVIC_EnableIRQ(PININT_NVIC_NAME);
/* Enable wakeup for PININT0 */
Chip_SYSCON_EnableWakeup(SYSCON_STARTER_PINT0);
/* save the clock source, power down the PLL */
saved_clksrc = Chip_Clock_GetMainClockSource();
/* Go to sleep mode - LED will toggle on each wakeup event */
while (1) {
/* Go to sleep state - will wake up automatically on interrupt */
/* Disable PLL, if previously enabled, prior to sleep */
if (saved_clksrc == SYSCON_MAINCLKSRC_PLLOUT) {
Chip_Clock_SetMainClockSource(SYSCON_MAINCLKSRC_IRC);
Chip_SYSCON_PowerDown(SYSCON_PDRUNCFG_PD_SYS_PLL);
}
/* Lower system voltages to current lock (likely IRC) */
Chip_POWER_SetVoltage(POWER_LOW_POWER_MODE, Chip_Clock_GetMainClockRate());
/* Go to sleep leaving SRAM powered during sleep. Use lower
voltage during sleep. */
Chip_POWER_EnterPowerMode(PDOWNMODE,
(SYSCON_PDRUNCFG_PD_SRAM0A | SYSCON_PDRUNCFG_PD_SRAM0B));
/* On wakeup, restore PLL power if needed */
if (saved_clksrc == SYSCON_MAINCLKSRC_PLLOUT) {
Chip_SYSCON_PowerUp(SYSCON_PDRUNCFG_PD_SYS_PLL);
/* Wait for PLL lock */
while (!Chip_Clock_IsSystemPLLLocked()) {}
Chip_POWER_SetVoltage(POWER_LOW_POWER_MODE, Chip_Clock_GetSystemPLLOutClockRate(false));
/* Use PLL for system clock */
Chip_Clock_SetMainClockSource(SYSCON_MAINCLKSRC_PLLOUT);
}
}
return 0;
}
