diff options
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11U6X/sleep.c')
-rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11U6X/sleep.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11U6X/sleep.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11U6X/sleep.c new file mode 100644 index 0000000000..ede20f99dc --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11U6X/sleep.c @@ -0,0 +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 |