void deepsleep(void) {
#if (DEVICE_SEMIHOST == 1)
// ensure debug is disconnected
mbed_interface_disconnect();
#endif
// PCON[PM] (bits 2:0) set to 1
LPC_PMU->PCON &= ~0x03;
LPC_PMU->PCON |= 0x01;
//According to user manual it is kinda picky about reserved bits, so we follow that nicely
//Keep WDOSC and BOD in same state as they are now during deepsleep
LPC_SYSCON->PDSLEEPCFG = 0x00000037 | (LPC_SYSCON->PDRUNCFG & (0x00000048));
// Power up same as before powerdown
LPC_SYSCON->PDAWAKECFG = LPC_SYSCON->PDRUNCFG;
// All interrupts can wake
LPC_SYSCON->STARTERP0 = 0xFF;
LPC_SYSCON->STARTERP1 = 0xFFFFFFFF;
// SRC[SLEEPDEEP] set to 1 = deep sleep
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
// wait for interrupt
__WFI();
}
int main() {
mbed_interface_disconnect(); //disable debug interface. and acces to MAC and local FS. ADC will work better!
timer.start();
serial_buffered.baud(BAUDRATE);
setup();
while (1) {
loop();
}
}
void deepsleep(void) {
#if (DEVICE_SEMIHOST == 1)
// ensure debug is disconnected
mbed_interface_disconnect();
#endif
// PCON[PD] set to deepsleep
sleep();
}
void sleep(void) {
#if (DEVICE_SEMIHOST == 1)
// ensure debug is disconnected
mbed_interface_disconnect();
#endif
// PCON[PM] (bits 2:0) set to 0
LPC_PMU->PCON &= ~0x03;
// SRC[SLEEPDEEP] set to 0 = sleep
SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk;
// wait for interrupt
__WFI();
}
