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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_WIZNET/TARGET_W7500x/us_ticker.c@619:034e698bc035, 2015-09-04 (annotated)

Committer:
mbed_official
Date:
Fri Sep 04 09:30:10 2015 +0100
Revision:
619:034e698bc035
Parent:
597:47bdd20c4d41 
Synchronized with git revision 92d1bfad30082571776c810a56fd471d30514ccf



Full URL: https://github.com/mbedmicro/mbed/commit/92d1bfad30082571776c810a56fd471d30514ccf/



Change directory structure and move files.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 558:0880f51c4036 1 /* mbed Microcontroller Library
mbed_official 558:0880f51c4036 2 *******************************************************************************
mbed_official 558:0880f51c4036 3 * Copyright (c) 2015 WIZnet Co.,Ltd. All rights reserved.
mbed_official 558:0880f51c4036 4 * All rights reserved.
mbed_official 558:0880f51c4036 5 *
mbed_official 558:0880f51c4036 6 * Redistribution and use in source and binary forms, with or without
mbed_official 558:0880f51c4036 7 * modification, are permitted provided that the following conditions are met:
mbed_official 558:0880f51c4036 8 *
mbed_official 558:0880f51c4036 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 558:0880f51c4036 10 * this list of conditions and the following disclaimer.
mbed_official 558:0880f51c4036 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 558:0880f51c4036 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 558:0880f51c4036 13 * and/or other materials provided with the distribution.
mbed_official 558:0880f51c4036 14 * 3. Neither the name of ARM Limited nor the names of its contributors
mbed_official 558:0880f51c4036 15 * may be used to endorse or promote products derived from this software
mbed_official 558:0880f51c4036 16 * without specific prior written permission.
mbed_official 558:0880f51c4036 17 *
mbed_official 558:0880f51c4036 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 558:0880f51c4036 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 558:0880f51c4036 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 558:0880f51c4036 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 558:0880f51c4036 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 558:0880f51c4036 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 558:0880f51c4036 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 558:0880f51c4036 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 558:0880f51c4036 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 558:0880f51c4036 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 558:0880f51c4036 28 *******************************************************************************
mbed_official 558:0880f51c4036 29 */
mbed_official 558:0880f51c4036 30
mbed_official 558:0880f51c4036 31 #include <stddef.h>
mbed_official 558:0880f51c4036 32 #include "us_ticker_api.h"
mbed_official 558:0880f51c4036 33 #include "PeripheralNames.h"
mbed_official 558:0880f51c4036 34 #include "system_W7500x.h"
mbed_official 619:034e698bc035 35 #include "W7500x_dualtimer.h"
mbed_official 619:034e698bc035 36 #include "W7500x_pwm.h"
mbed_official 558:0880f51c4036 37
mbed_official 597:47bdd20c4d41 38 #define TIMER_0 DUALTIMER0_0
mbed_official 597:47bdd20c4d41 39 #define TIMER_1 PWM_CH1
mbed_official 597:47bdd20c4d41 40 #define TIMER_IRQn DUALTIMER0_IRQn
mbed_official 558:0880f51c4036 41
mbed_official 597:47bdd20c4d41 42 static PWM_TimerModeInitTypeDef TimerInitType;
mbed_official 597:47bdd20c4d41 43 static DUALTIMER_InitTypDef TimerHandler;
mbed_official 558:0880f51c4036 44
mbed_official 558:0880f51c4036 45 static int us_ticker_inited = 0;
mbed_official 558:0880f51c4036 46
mbed_official 558:0880f51c4036 47
mbed_official 558:0880f51c4036 48 #ifdef __cplusplus
mbed_official 558:0880f51c4036 49 extern "C"{
mbed_official 558:0880f51c4036 50 #endif
mbed_official 597:47bdd20c4d41 51
mbed_official 597:47bdd20c4d41 52 void DUALTIMER0_Handler(void)
mbed_official 558:0880f51c4036 53 {
mbed_official 597:47bdd20c4d41 54 if(DUALTIMER_GetIntStatus(DUALTIMER0_0))
mbed_official 558:0880f51c4036 55 {
mbed_official 597:47bdd20c4d41 56 DUALTIMER_IntClear(DUALTIMER0_0);
mbed_official 558:0880f51c4036 57 us_ticker_irq_handler();
mbed_official 558:0880f51c4036 58 }
mbed_official 558:0880f51c4036 59 }
mbed_official 558:0880f51c4036 60
mbed_official 558:0880f51c4036 61 #ifdef __cplusplus
mbed_official 558:0880f51c4036 62 }
mbed_official 558:0880f51c4036 63 #endif
mbed_official 558:0880f51c4036 64
mbed_official 558:0880f51c4036 65 void us_ticker_init(void)
mbed_official 558:0880f51c4036 66 {
mbed_official 558:0880f51c4036 67 if (us_ticker_inited) return;
mbed_official 558:0880f51c4036 68 us_ticker_inited = 1;
mbed_official 558:0880f51c4036 69
mbed_official 558:0880f51c4036 70 SystemCoreClockUpdate();
mbed_official 597:47bdd20c4d41 71 TimerInitType.PWM_CHn_PR = (GetSystemClock() / 1000000) -1;
mbed_official 597:47bdd20c4d41 72 TimerInitType.PWM_CHn_LR = 0xFFFFFFFF;
mbed_official 597:47bdd20c4d41 73 TimerInitType.PWM_CHn_PDMR = 1;
mbed_official 558:0880f51c4036 74
mbed_official 597:47bdd20c4d41 75 PWM_TimerModeInit(TIMER_1, &TimerInitType);
mbed_official 597:47bdd20c4d41 76 PWM_CHn_Start(TIMER_1);
mbed_official 558:0880f51c4036 77 }
mbed_official 558:0880f51c4036 78
mbed_official 558:0880f51c4036 79
mbed_official 558:0880f51c4036 80 uint32_t us_ticker_read()
mbed_official 558:0880f51c4036 81 {
mbed_official 558:0880f51c4036 82 if (!us_ticker_inited) us_ticker_init();
mbed_official 597:47bdd20c4d41 83 return (TIMER_1->TCR);
mbed_official 558:0880f51c4036 84 }
mbed_official 558:0880f51c4036 85
mbed_official 558:0880f51c4036 86
mbed_official 558:0880f51c4036 87 void us_ticker_set_interrupt(timestamp_t timestamp)
mbed_official 558:0880f51c4036 88 {
mbed_official 558:0880f51c4036 89 int32_t dev = 0;
mbed_official 597:47bdd20c4d41 90
mbed_official 558:0880f51c4036 91 if (!us_ticker_inited)
mbed_official 558:0880f51c4036 92 {
mbed_official 558:0880f51c4036 93 us_ticker_init();
mbed_official 558:0880f51c4036 94 }
mbed_official 558:0880f51c4036 95
mbed_official 597:47bdd20c4d41 96 dev = (int32_t)(timestamp - us_ticker_read());
mbed_official 597:47bdd20c4d41 97 dev = dev * ((GetSystemClock() / 1000000) / 16);
mbed_official 558:0880f51c4036 98
mbed_official 558:0880f51c4036 99 if(dev <= 0)
mbed_official 558:0880f51c4036 100 {
mbed_official 558:0880f51c4036 101 us_ticker_irq_handler();
mbed_official 597:47bdd20c4d41 102 return;
mbed_official 558:0880f51c4036 103 }
mbed_official 597:47bdd20c4d41 104
mbed_official 597:47bdd20c4d41 105 DUALTIMER_ClockEnable(TIMER_0);
mbed_official 597:47bdd20c4d41 106 DUALTIMER_Stop(TIMER_0);
mbed_official 597:47bdd20c4d41 107
mbed_official 597:47bdd20c4d41 108 TimerHandler.TimerControl_Mode = DUALTIMER_TimerControl_Periodic;
mbed_official 597:47bdd20c4d41 109 TimerHandler.TimerControl_OneShot = DUALTIMER_TimerControl_OneShot;
mbed_official 597:47bdd20c4d41 110 TimerHandler.TimerControl_Pre = DUALTIMER_TimerControl_Pre_16;
mbed_official 597:47bdd20c4d41 111 TimerHandler.TimerControl_Size = DUALTIMER_TimerControl_Size_32;
mbed_official 597:47bdd20c4d41 112
mbed_official 597:47bdd20c4d41 113 TimerHandler.TimerLoad = (uint32_t)dev;
mbed_official 597:47bdd20c4d41 114
mbed_official 597:47bdd20c4d41 115 DUALTIMER_Init(TIMER_0, &TimerHandler);
mbed_official 597:47bdd20c4d41 116
mbed_official 597:47bdd20c4d41 117 DUALTIMER_IntConfig(TIMER_0, ENABLE);
mbed_official 597:47bdd20c4d41 118
mbed_official 597:47bdd20c4d41 119 NVIC_EnableIRQ(TIMER_IRQn);
mbed_official 597:47bdd20c4d41 120
mbed_official 597:47bdd20c4d41 121 DUALTIMER_Start(TIMER_0);
mbed_official 597:47bdd20c4d41 122
mbed_official 558:0880f51c4036 123
mbed_official 558:0880f51c4036 124 }
mbed_official 558:0880f51c4036 125
mbed_official 558:0880f51c4036 126 void us_ticker_disable_interrupt(void)
mbed_official 558:0880f51c4036 127 {
mbed_official 597:47bdd20c4d41 128 NVIC_DisableIRQ(TIMER_IRQn);
mbed_official 597:47bdd20c4d41 129
mbed_official 597:47bdd20c4d41 130 DUALTIMER_IntConfig(TIMER_0, DISABLE);
mbed_official 558:0880f51c4036 131 }
mbed_official 558:0880f51c4036 132
mbed_official 558:0880f51c4036 133 void us_ticker_clear_interrupt(void)
mbed_official 558:0880f51c4036 134 {
mbed_official 597:47bdd20c4d41 135 DUALTIMER_IntClear(TIMER_0);
mbed_official 558:0880f51c4036 136 }