Diff: targets/hal/TARGET_NXP/TARGET_LPC11UXX/sleep.c

Revision:

223:d98d59aec21a

Parent:

222:96162ccfbf43

diff -r 96162ccfbf43 -r d98d59aec21a targets/hal/TARGET_NXP/TARGET_LPC11UXX/sleep.c
--- a/targets/hal/TARGET_NXP/TARGET_LPC11UXX/sleep.c	Fri Jun 06 11:00:08 2014 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,79 +0,0 @@
-/* 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) {
-    // ensure debug is disconnected
-    #if DEVICE_SEMIHOST
-    mbed_interface_disconnect();
-    #endif
-    
-    // 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();
-}
-
-/*
-* The mbed lpc1768 does not support the deepsleep mode
-* as a debugger is connected to it (the mbed interface).
-*
-* As mentionned in an application note from NXP:
-*
-*       http://www.po-star.com/public/uploads/20120319123122_141.pdf
-*
-*       {{{
-*       The user should be aware of certain limitations during debugging.
-*       The most important is that, due to limitations of the Cortex-M3
-*       integration, the LPC17xx cannot wake up in the usual manner from
-*       Deep Sleep and Power-down modes. It is recommended not to use these
-*       modes during debug. Once an application is downloaded via JTAG/SWD
-*       interface, the USB to SWD/JTAG debug adapter (Keil ULINK2 for example)
-*       should be removed from the target board, and thereafter, power cycle
-*       the LPC17xx to allow wake-up from deep sleep and power-down modes
-*       }}}
-*
-*       As the interface firmware does not reset the target when a
-*       mbed_interface_disconnect() semihosting call is made, the
-*       core cannot wake-up from deepsleep.
-*
-*       We treat a deepsleep() as a normal sleep().
-*/
-
-void deepsleep(void) {
-    // ensure debug is disconnected
-    #if DEVICE_SEMIHOST
-    mbed_interface_disconnect();
-    #endif
-    
-    // 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();
-}