mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/hal/TARGET_NXP/TARGET_LPC11XX_11CXX/sleep.c@310:6188e0254baa, 2014-09-16 (annotated)
- Committer:
- janekm
- Date:
- Tue Sep 16 22:42:01 2014 +0000
- Revision:
- 310:6188e0254baa
- Parent:
- 268:402bcc0c870b
N/A
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 30:91c1d09ada54 | 1 | /* mbed Microcontroller Library |
mbed_official | 30:91c1d09ada54 | 2 | * Copyright (c) 2006-2013 ARM Limited |
mbed_official | 30:91c1d09ada54 | 3 | * |
mbed_official | 30:91c1d09ada54 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 30:91c1d09ada54 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 30:91c1d09ada54 | 6 | * You may obtain a copy of the License at |
mbed_official | 30:91c1d09ada54 | 7 | * |
mbed_official | 30:91c1d09ada54 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 30:91c1d09ada54 | 9 | * |
mbed_official | 30:91c1d09ada54 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 30:91c1d09ada54 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 30:91c1d09ada54 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 30:91c1d09ada54 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 30:91c1d09ada54 | 14 | * limitations under the License. |
mbed_official | 30:91c1d09ada54 | 15 | */ |
mbed_official | 30:91c1d09ada54 | 16 | #include "sleep_api.h" |
mbed_official | 30:91c1d09ada54 | 17 | #include "cmsis.h" |
mbed_official | 30:91c1d09ada54 | 18 | #include "mbed_interface.h" |
mbed_official | 30:91c1d09ada54 | 19 | |
mbed_official | 30:91c1d09ada54 | 20 | void sleep(void) { |
mbed_official | 30:91c1d09ada54 | 21 | |
mbed_official | 30:91c1d09ada54 | 22 | // PCON[DPDEN] set to sleep |
mbed_official | 30:91c1d09ada54 | 23 | LPC_PMU->PCON = 0x0; |
mbed_official | 30:91c1d09ada54 | 24 | |
mbed_official | 30:91c1d09ada54 | 25 | // SRC[SLEEPDEEP] set to 0 = sleep |
mbed_official | 30:91c1d09ada54 | 26 | SCB->SCR &= ~SCB_SCR_SLEEPDEEP_Msk; |
mbed_official | 30:91c1d09ada54 | 27 | |
mbed_official | 30:91c1d09ada54 | 28 | // wait for interrupt |
mbed_official | 30:91c1d09ada54 | 29 | __WFI(); |
mbed_official | 30:91c1d09ada54 | 30 | } |
mbed_official | 30:91c1d09ada54 | 31 | |
mbed_official | 30:91c1d09ada54 | 32 | void deepsleep(void) { |
mbed_official | 30:91c1d09ada54 | 33 | |
mbed_official | 30:91c1d09ada54 | 34 | // PCON[DPDEN] set to deepsleep |
mbed_official | 268:402bcc0c870b | 35 | LPC_PMU->PCON = 0; |
mbed_official | 30:91c1d09ada54 | 36 | |
mbed_official | 30:91c1d09ada54 | 37 | // SRC[SLEEPDEEP] set to 1 = deep sleep |
mbed_official | 30:91c1d09ada54 | 38 | SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk; |
mbed_official | 30:91c1d09ada54 | 39 | |
mbed_official | 268:402bcc0c870b | 40 | //According to user manual it is kinda picky about reserved bits, so we follow that nicely |
mbed_official | 268:402bcc0c870b | 41 | //Keep WDOSC and BOD in same state as they are now during deepsleep |
mbed_official | 268:402bcc0c870b | 42 | LPC_SYSCON->PDSLEEPCFG = 0x000018B7 | (LPC_SYSCON->PDRUNCFG & (PDRUNCFG_WDTOSC_PD | PDRUNCFG_BOD_PD)); |
mbed_official | 268:402bcc0c870b | 43 | |
mbed_official | 268:402bcc0c870b | 44 | // Power up same as before powerdown |
mbed_official | 268:402bcc0c870b | 45 | LPC_SYSCON->PDAWAKECFG = LPC_SYSCON->PDRUNCFG; |
mbed_official | 30:91c1d09ada54 | 46 | |
mbed_official | 30:91c1d09ada54 | 47 | // wait for interrupt |
mbed_official | 30:91c1d09ada54 | 48 | __WFI(); |
mbed_official | 30:91c1d09ada54 | 49 | } |