--- /dev/null
+/* 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"
+
+
+//#define DEEPSLEEP
+#define POWERDOWN
+
+void sleep(void) {
+ //Normal sleep mode for PCON:
+ LPC_PMU->PCON &= ~0x03;
+
+ //Normal sleep mode for ARM core:
+ SCB->SCR = 0;
+
+ //And go to sleep
+ __WFI();
+}
+
+
+
+//Deepsleep/powerdown modes assume the device is configured to use its internal RC oscillator directly
+
+#ifdef DEEPSLEEP
+void deepsleep(void) {
+ //Deep sleep in PCON
+ LPC_PMU->PCON &= ~0x03;
+ LPC_PMU->PCON |= 0x01;
+
+ //If brownout detection and WDT are enabled, keep them enabled during sleep
+ LPC_SYSCON->PDSLEEPCFG = LPC_SYSCON->PDRUNCFG;
+
+ //After wakeup same stuff as currently enabled:
+ LPC_SYSCON->PDAWAKECFG = LPC_SYSCON->PDRUNCFG;
+
+ //All interrupts may wake up:
+ LPC_SYSCON->STARTERP0 = 0xFF;
+ LPC_SYSCON->STARTERP1 = 0xFFFF;
+
+ //Deep sleep for ARM core:
+ SCB->SCR = 1<<2;
+
+ __WFI();
+}
+#endif
+
+#ifdef POWERDOWN
+void deepsleep(void) {
+ //Powerdown in PCON
+ LPC_PMU->PCON &= ~0x03;
+ LPC_PMU->PCON |= 0x02;
+
+ //If brownout detection and WDT are enabled, keep them enabled during sleep
+ LPC_SYSCON->PDSLEEPCFG = LPC_SYSCON->PDRUNCFG;
+
+ //After wakeup same stuff as currently enabled:
+ LPC_SYSCON->PDAWAKECFG = LPC_SYSCON->PDRUNCFG;
+
+ //All interrupts may wake up:
+ LPC_SYSCON->STARTERP0 = 0xFF;
+ LPC_SYSCON->STARTERP1 = 0xFFFF;
+
+ //Deep sleep for ARM core:
+ SCB->SCR = 1<<2;
+
+ __WFI();
+}
+#endif