USB Serial application
Fork of USBSerial_HelloWorld by
mbed-dev/targets/TARGET_NXP/TARGET_LPC11U6X/sleep.c
- Committer:
- Zaitsev
- Date:
- 2017-12-16
- Revision:
- 11:b3f2a8bdac4d
- Parent:
- 10:41552d038a69
File content as of revision 11:b3f2a8bdac4d:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "sleep_api.h" #include "cmsis.h" #include "mbed_interface.h" #if DEVICE_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(); } 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(); } #endif