1 /* mbed Microcontroller Library
2 * Copyright (c) 2006-2013 ARM Limited
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 #include "sleep_api.h"
25 //Normal sleep mode for PCON:
26 LPC_PMU->PCON &= ~0x03;
28 //Normal sleep mode for ARM core:
35 // Deepsleep/powerdown modes assume the device is configured to use its internal RC oscillator directly
40 LPC_PMU->PCON &= ~0x03;
42 #if defined(DEEPSLEEP)
43 LPC_PMU->PCON |= 0x01;
44 #elif defined(POWERDOWN)
45 LPC_PMU->PCON |= 0x02;
48 //If brownout detection and WDT are enabled, keep them enabled during sleep
49 LPC_SYSCON->PDSLEEPCFG = LPC_SYSCON->PDRUNCFG;
51 //After wakeup same stuff as currently enabled:
52 LPC_SYSCON->PDAWAKECFG = LPC_SYSCON->PDRUNCFG;
54 //All interrupts may wake up:
55 LPC_SYSCON->STARTERP0 = 0xFF;
56 LPC_SYSCON->STARTERP1 = 0xFFFF;
58 //Deep sleep for ARM core: