mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_WIZNET/TARGET_W7500x/us_ticker.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
188:bcfe06ba3d64 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 *******************************************************************************
<> 144:ef7eb2e8f9f7 3 * Copyright (c) 2015 WIZnet Co.,Ltd. All rights reserved.
<> 144:ef7eb2e8f9f7 4 * All rights reserved.
<> 144:ef7eb2e8f9f7 5 *
<> 144:ef7eb2e8f9f7 6 * Redistribution and use in source and binary forms, with or without
<> 144:ef7eb2e8f9f7 7 * modification, are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 8 *
<> 144:ef7eb2e8f9f7 9 * 1. Redistributions of source code must retain the above copyright notice,
<> 144:ef7eb2e8f9f7 10 * this list of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 144:ef7eb2e8f9f7 12 * this list of conditions and the following disclaimer in the documentation
<> 144:ef7eb2e8f9f7 13 * and/or other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 14 * 3. Neither the name of ARM Limited nor the names of its contributors
<> 144:ef7eb2e8f9f7 15 * may be used to endorse or promote products derived from this software
<> 144:ef7eb2e8f9f7 16 * without specific prior written permission.
<> 144:ef7eb2e8f9f7 17 *
<> 144:ef7eb2e8f9f7 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 144:ef7eb2e8f9f7 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 144:ef7eb2e8f9f7 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 144:ef7eb2e8f9f7 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 144:ef7eb2e8f9f7 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 144:ef7eb2e8f9f7 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 144:ef7eb2e8f9f7 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 144:ef7eb2e8f9f7 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 144:ef7eb2e8f9f7 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 28 *******************************************************************************
<> 144:ef7eb2e8f9f7 29 */
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 #include <stddef.h>
<> 144:ef7eb2e8f9f7 32 #include "us_ticker_api.h"
<> 144:ef7eb2e8f9f7 33 #include "PeripheralNames.h"
<> 144:ef7eb2e8f9f7 34 #include "system_W7500x.h"
<> 144:ef7eb2e8f9f7 35 #include "W7500x_dualtimer.h"
<> 144:ef7eb2e8f9f7 36 #include "W7500x_pwm.h"
<> 144:ef7eb2e8f9f7 37
<> 144:ef7eb2e8f9f7 38 #define TIMER_0 DUALTIMER0_0
<> 144:ef7eb2e8f9f7 39 #define TIMER_1 PWM_CH1
<> 144:ef7eb2e8f9f7 40 #define TIMER_IRQn DUALTIMER0_IRQn
<> 144:ef7eb2e8f9f7 41
<> 144:ef7eb2e8f9f7 42 static PWM_TimerModeInitTypeDef TimerInitType;
<> 144:ef7eb2e8f9f7 43 static DUALTIMER_InitTypDef TimerHandler;
<> 144:ef7eb2e8f9f7 44
<> 144:ef7eb2e8f9f7 45 static int us_ticker_inited = 0;
<> 144:ef7eb2e8f9f7 46
<> 144:ef7eb2e8f9f7 47
<> 144:ef7eb2e8f9f7 48 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 49 extern "C"{
<> 144:ef7eb2e8f9f7 50 #endif
<> 144:ef7eb2e8f9f7 51
<> 144:ef7eb2e8f9f7 52 void DUALTIMER0_Handler(void)
<> 144:ef7eb2e8f9f7 53 {
AnnaBridge 187:0387e8f68319 54 DUALTIMER_IntClear(DUALTIMER0_0);
AnnaBridge 187:0387e8f68319 55 us_ticker_irq_handler();
<> 144:ef7eb2e8f9f7 56 }
<> 144:ef7eb2e8f9f7 57
<> 144:ef7eb2e8f9f7 58 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 59 }
<> 144:ef7eb2e8f9f7 60 #endif
<> 144:ef7eb2e8f9f7 61
<> 144:ef7eb2e8f9f7 62 void us_ticker_init(void)
<> 144:ef7eb2e8f9f7 63 {
<> 144:ef7eb2e8f9f7 64 if (us_ticker_inited) return;
<> 144:ef7eb2e8f9f7 65 us_ticker_inited = 1;
<> 144:ef7eb2e8f9f7 66
<> 144:ef7eb2e8f9f7 67 SystemCoreClockUpdate();
<> 144:ef7eb2e8f9f7 68 TimerInitType.PWM_CHn_PR = (GetSystemClock() / 1000000) -1;
<> 144:ef7eb2e8f9f7 69 TimerInitType.PWM_CHn_LR = 0xFFFFFFFF;
<> 144:ef7eb2e8f9f7 70 TimerInitType.PWM_CHn_PDMR = 1;
<> 144:ef7eb2e8f9f7 71
<> 144:ef7eb2e8f9f7 72 PWM_TimerModeInit(TIMER_1, &TimerInitType);
<> 144:ef7eb2e8f9f7 73 PWM_CHn_Start(TIMER_1);
<> 144:ef7eb2e8f9f7 74 }
<> 144:ef7eb2e8f9f7 75
<> 144:ef7eb2e8f9f7 76
<> 144:ef7eb2e8f9f7 77 uint32_t us_ticker_read()
<> 144:ef7eb2e8f9f7 78 {
<> 144:ef7eb2e8f9f7 79 if (!us_ticker_inited) us_ticker_init();
<> 144:ef7eb2e8f9f7 80 return (TIMER_1->TCR);
<> 144:ef7eb2e8f9f7 81 }
<> 144:ef7eb2e8f9f7 82
<> 144:ef7eb2e8f9f7 83
<> 144:ef7eb2e8f9f7 84 void us_ticker_set_interrupt(timestamp_t timestamp)
<> 144:ef7eb2e8f9f7 85 {
<> 144:ef7eb2e8f9f7 86 int32_t dev = 0;
<> 144:ef7eb2e8f9f7 87
<> 144:ef7eb2e8f9f7 88 if (!us_ticker_inited)
<> 144:ef7eb2e8f9f7 89 {
<> 144:ef7eb2e8f9f7 90 us_ticker_init();
<> 144:ef7eb2e8f9f7 91 }
<> 144:ef7eb2e8f9f7 92
<> 144:ef7eb2e8f9f7 93 dev = (int32_t)(timestamp - us_ticker_read());
<> 144:ef7eb2e8f9f7 94 dev = dev * ((GetSystemClock() / 1000000) / 16);
<> 144:ef7eb2e8f9f7 95
<> 144:ef7eb2e8f9f7 96 DUALTIMER_ClockEnable(TIMER_0);
<> 144:ef7eb2e8f9f7 97 DUALTIMER_Stop(TIMER_0);
<> 144:ef7eb2e8f9f7 98
<> 144:ef7eb2e8f9f7 99 TimerHandler.TimerControl_Mode = DUALTIMER_TimerControl_Periodic;
<> 144:ef7eb2e8f9f7 100 TimerHandler.TimerControl_OneShot = DUALTIMER_TimerControl_OneShot;
<> 144:ef7eb2e8f9f7 101 TimerHandler.TimerControl_Pre = DUALTIMER_TimerControl_Pre_16;
<> 144:ef7eb2e8f9f7 102 TimerHandler.TimerControl_Size = DUALTIMER_TimerControl_Size_32;
<> 144:ef7eb2e8f9f7 103
<> 144:ef7eb2e8f9f7 104 TimerHandler.TimerLoad = (uint32_t)dev;
<> 144:ef7eb2e8f9f7 105
<> 144:ef7eb2e8f9f7 106 DUALTIMER_Init(TIMER_0, &TimerHandler);
<> 144:ef7eb2e8f9f7 107
<> 144:ef7eb2e8f9f7 108 DUALTIMER_IntConfig(TIMER_0, ENABLE);
<> 144:ef7eb2e8f9f7 109
<> 144:ef7eb2e8f9f7 110 NVIC_EnableIRQ(TIMER_IRQn);
<> 144:ef7eb2e8f9f7 111
<> 144:ef7eb2e8f9f7 112 DUALTIMER_Start(TIMER_0);
<> 144:ef7eb2e8f9f7 113
<> 144:ef7eb2e8f9f7 114
<> 144:ef7eb2e8f9f7 115 }
<> 144:ef7eb2e8f9f7 116
AnnaBridge 174:b96e65c34a4d 117 void us_ticker_fire_interrupt(void)
AnnaBridge 174:b96e65c34a4d 118 {
AnnaBridge 174:b96e65c34a4d 119 NVIC_SetPendingIRQ(TIMER_IRQn);
AnnaBridge 174:b96e65c34a4d 120 }
AnnaBridge 174:b96e65c34a4d 121
<> 144:ef7eb2e8f9f7 122 void us_ticker_disable_interrupt(void)
<> 144:ef7eb2e8f9f7 123 {
<> 144:ef7eb2e8f9f7 124 NVIC_DisableIRQ(TIMER_IRQn);
<> 144:ef7eb2e8f9f7 125
<> 144:ef7eb2e8f9f7 126 DUALTIMER_IntConfig(TIMER_0, DISABLE);
<> 144:ef7eb2e8f9f7 127 }
<> 144:ef7eb2e8f9f7 128
<> 144:ef7eb2e8f9f7 129 void us_ticker_clear_interrupt(void)
<> 144:ef7eb2e8f9f7 130 {
<> 144:ef7eb2e8f9f7 131 DUALTIMER_IntClear(TIMER_0);
<> 144:ef7eb2e8f9f7 132 }
AnnaBridge 188:bcfe06ba3d64 133
AnnaBridge 188:bcfe06ba3d64 134 void us_ticker_free(void)
AnnaBridge 188:bcfe06ba3d64 135 {
AnnaBridge 188:bcfe06ba3d64 136
AnnaBridge 188:bcfe06ba3d64 137 }