forked
Diff: targets/TARGET_NXP/TARGET_LPC13XX/sleep.c
- Revision:
- 149:156823d33999
- Parent:
- 144:ef7eb2e8f9f7
- Child:
- 160:d5399cc887bb
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_NXP/TARGET_LPC13XX/sleep.c Fri Oct 28 11:17:30 2016 +0100 @@ -0,0 +1,43 @@ +/* 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" + +void sleep(void) { + // PCON[PD] set to sleep + LPC_PMU->PCON = 0x0; + + // SRC[SLEEPDEEP] set to 0 = sleep + SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk; + + // wait for interrupt + __WFI(); +} + +void deepsleep(void) { + // PCON[PD] set to deepsleep + LPC_PMU->PCON = 0x1; + + // SRC[SLEEPDEEP] set to 1 = deep sleep + SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; + + // Power up everything after powerdown + LPC_SYSCON->PDAWAKECFG &= 0xFFFFF800; + + // wait for interrupt + __WFI(); +}