Geremia G / mbed-src

- fix F411 F334 systeminit when HSI used - portinout always read IDR regardless of port direction

Fork of mbed-src by mbed official

targets/hal/TARGET_NXP/TARGET_LPC81X/sleep.c@332:e299ae530e63, 2014-09-27 (annotated)

Committer:
Geremia
Date:
Sat Sep 27 11:16:28 2014 +0000
Revision:
332:e299ae530e63
Parent:
47:02833c62d054 
- fix F411 F334 systeminit when HSI used; - STMs PortInOut port.read() always read input data register (real external pin state) even if direction is output (same as other platforms)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 47:02833c62d054 1 /* mbed Microcontroller Library
mbed_official 47:02833c62d054 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 47:02833c62d054 3 *
mbed_official 47:02833c62d054 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 47:02833c62d054 5 * you may not use this file except in compliance with the License.
mbed_official 47:02833c62d054 6 * You may obtain a copy of the License at
mbed_official 47:02833c62d054 7 *
mbed_official 47:02833c62d054 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 47:02833c62d054 9 *
mbed_official 47:02833c62d054 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 47:02833c62d054 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 47:02833c62d054 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 47:02833c62d054 13 * See the License for the specific language governing permissions and
mbed_official 47:02833c62d054 14 * limitations under the License.
mbed_official 47:02833c62d054 15 */
mbed_official 47:02833c62d054 16 #include "sleep_api.h"
mbed_official 47:02833c62d054 17 #include "cmsis.h"
mbed_official 47:02833c62d054 18
mbed_official 47:02833c62d054 19
mbed_official 47:02833c62d054 20 //#define DEEPSLEEP
mbed_official 47:02833c62d054 21 #define POWERDOWN
mbed_official 47:02833c62d054 22
mbed_official 47:02833c62d054 23 void sleep(void) {
mbed_official 47:02833c62d054 24 //Normal sleep mode for PCON:
mbed_official 47:02833c62d054 25 LPC_PMU->PCON &= ~0x03;
mbed_official 47:02833c62d054 26
mbed_official 47:02833c62d054 27 //Normal sleep mode for ARM core:
mbed_official 47:02833c62d054 28 SCB->SCR = 0;
mbed_official 47:02833c62d054 29
mbed_official 47:02833c62d054 30 //And go to sleep
mbed_official 47:02833c62d054 31 __WFI();
mbed_official 47:02833c62d054 32 }
mbed_official 47:02833c62d054 33
mbed_official 47:02833c62d054 34
mbed_official 47:02833c62d054 35
mbed_official 47:02833c62d054 36 //Deepsleep/powerdown modes assume the device is configured to use its internal RC oscillator directly
mbed_official 47:02833c62d054 37
mbed_official 47:02833c62d054 38 #ifdef DEEPSLEEP
mbed_official 47:02833c62d054 39 void deepsleep(void) {
mbed_official 47:02833c62d054 40 //Deep sleep in PCON
mbed_official 47:02833c62d054 41 LPC_PMU->PCON &= ~0x03;
mbed_official 47:02833c62d054 42 LPC_PMU->PCON |= 0x01;
mbed_official 47:02833c62d054 43
mbed_official 47:02833c62d054 44 //If brownout detection and WDT are enabled, keep them enabled during sleep
mbed_official 47:02833c62d054 45 LPC_SYSCON->PDSLEEPCFG = LPC_SYSCON->PDRUNCFG;
mbed_official 47:02833c62d054 46
mbed_official 47:02833c62d054 47 //After wakeup same stuff as currently enabled:
mbed_official 47:02833c62d054 48 LPC_SYSCON->PDAWAKECFG = LPC_SYSCON->PDRUNCFG;
mbed_official 47:02833c62d054 49
mbed_official 47:02833c62d054 50 //All interrupts may wake up:
mbed_official 47:02833c62d054 51 LPC_SYSCON->STARTERP0 = 0xFF;
mbed_official 47:02833c62d054 52 LPC_SYSCON->STARTERP1 = 0xFFFF;
mbed_official 47:02833c62d054 53
mbed_official 47:02833c62d054 54 //Deep sleep for ARM core:
mbed_official 47:02833c62d054 55 SCB->SCR = 1<<2;
mbed_official 47:02833c62d054 56
mbed_official 47:02833c62d054 57 __WFI();
mbed_official 47:02833c62d054 58 }
mbed_official 47:02833c62d054 59 #endif
mbed_official 47:02833c62d054 60
mbed_official 47:02833c62d054 61 #ifdef POWERDOWN
mbed_official 47:02833c62d054 62 void deepsleep(void) {
mbed_official 47:02833c62d054 63 //Powerdown in PCON
mbed_official 47:02833c62d054 64 LPC_PMU->PCON &= ~0x03;
mbed_official 47:02833c62d054 65 LPC_PMU->PCON |= 0x02;
mbed_official 47:02833c62d054 66
mbed_official 47:02833c62d054 67 //If brownout detection and WDT are enabled, keep them enabled during sleep
mbed_official 47:02833c62d054 68 LPC_SYSCON->PDSLEEPCFG = LPC_SYSCON->PDRUNCFG;
mbed_official 47:02833c62d054 69
mbed_official 47:02833c62d054 70 //After wakeup same stuff as currently enabled:
mbed_official 47:02833c62d054 71 LPC_SYSCON->PDAWAKECFG = LPC_SYSCON->PDRUNCFG;
mbed_official 47:02833c62d054 72
mbed_official 47:02833c62d054 73 //All interrupts may wake up:
mbed_official 47:02833c62d054 74 LPC_SYSCON->STARTERP0 = 0xFF;
mbed_official 47:02833c62d054 75 LPC_SYSCON->STARTERP1 = 0xFFFF;
mbed_official 47:02833c62d054 76
mbed_official 47:02833c62d054 77 //Deep sleep for ARM core:
mbed_official 47:02833c62d054 78 SCB->SCR = 1<<2;
mbed_official 47:02833c62d054 79
mbed_official 47:02833c62d054 80 __WFI();
mbed_official 47:02833c62d054 81 }
mbed_official 47:02833c62d054 82 #endif