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Diff: targets/hal/TARGET_NXP/TARGET_LPC11U6X/sleep.c
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 0:9b334a45a8ff
--- a/targets/hal/TARGET_NXP/TARGET_LPC11U6X/sleep.c Tue Aug 02 14:07:36 2016 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC11U6X/sleep.c Fri Sep 02 15:07:44 2016 +0100 @@ -1,69 +1,69 @@ -/* 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 +/* 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