Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_RENESAS/TARGET_RZ_A1H/nvic_wrapper.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
Parent:
0:9b334a45a8ff 
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /*******************************************************************************
<> 144:ef7eb2e8f9f7 2 * DISCLAIMER
<> 144:ef7eb2e8f9f7 3 * This software is supplied by Renesas Electronics Corporation and is only
<> 144:ef7eb2e8f9f7 4 * intended for use with Renesas products. No other uses are authorized. This
<> 144:ef7eb2e8f9f7 5 * software is owned by Renesas Electronics Corporation and is protected under
<> 144:ef7eb2e8f9f7 6 * all applicable laws, including copyright laws.
<> 144:ef7eb2e8f9f7 7 * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
<> 144:ef7eb2e8f9f7 8 * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
<> 144:ef7eb2e8f9f7 9 * LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
<> 144:ef7eb2e8f9f7 10 * AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
<> 144:ef7eb2e8f9f7 11 * TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
<> 144:ef7eb2e8f9f7 12 * ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
<> 144:ef7eb2e8f9f7 13 * FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
<> 144:ef7eb2e8f9f7 14 * ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
<> 144:ef7eb2e8f9f7 15 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
<> 144:ef7eb2e8f9f7 16 * Renesas reserves the right, without notice, to make changes to this software
<> 144:ef7eb2e8f9f7 17 * and to discontinue the availability of this software. By using this software,
<> 144:ef7eb2e8f9f7 18 * you agree to the additional terms and conditions found by accessing the
<> 144:ef7eb2e8f9f7 19 * following link:
<> 144:ef7eb2e8f9f7 20 * http://www.renesas.com/disclaimer
<> 144:ef7eb2e8f9f7 21 * Copyright (C) 2012 - 2015 Renesas Electronics Corporation. All rights reserved.
<> 144:ef7eb2e8f9f7 22 *******************************************************************************/
<> 144:ef7eb2e8f9f7 23 /**************************************************************************//**
<> 144:ef7eb2e8f9f7 24 * @file nvic_wrapper.c
<> 144:ef7eb2e8f9f7 25 * $Rev: $
<> 144:ef7eb2e8f9f7 26 * $Date:: $
<> 144:ef7eb2e8f9f7 27 * @brief Wrapper between NVIC(for Cortex-M) and GIC(for Cortex-A9)
<> 144:ef7eb2e8f9f7 28 ******************************************************************************/
<> 144:ef7eb2e8f9f7 29
<> 144:ef7eb2e8f9f7 30 /******************************************************************************
<> 144:ef7eb2e8f9f7 31 Includes <System Includes> , "Project Includes"
<> 144:ef7eb2e8f9f7 32 ******************************************************************************/
<> 144:ef7eb2e8f9f7 33 #include "MBRZA1H.h"
<> 144:ef7eb2e8f9f7 34 #include "wdt_iodefine.h"
<> 144:ef7eb2e8f9f7 35 #include "nvic_wrapper.h"
<> 144:ef7eb2e8f9f7 36 #include "gic.h"
<> 144:ef7eb2e8f9f7 37
<> 144:ef7eb2e8f9f7 38 /******************************************************************************
<> 144:ef7eb2e8f9f7 39 Typedef definitions
<> 144:ef7eb2e8f9f7 40 ******************************************************************************/
<> 144:ef7eb2e8f9f7 41
<> 144:ef7eb2e8f9f7 42 /******************************************************************************
<> 144:ef7eb2e8f9f7 43 Macro definitions
<> 144:ef7eb2e8f9f7 44 ******************************************************************************/
<> 144:ef7eb2e8f9f7 45 #define PRIO_BITS (7) /* Set binary point to 0 in gic.c */
<> 144:ef7eb2e8f9f7 46 #define WDT_WTCNT_WRITE (0x5A00)
<> 144:ef7eb2e8f9f7 47 #define WDT_WTCSR_WRITE (0xA500)
<> 144:ef7eb2e8f9f7 48 #define WDT_WRCSR_WOVF_WRITE (0xA500)
<> 144:ef7eb2e8f9f7 49 #define WDT_WRCSR_RSTE_WRITE (0x5A00)
<> 144:ef7eb2e8f9f7 50
<> 144:ef7eb2e8f9f7 51 /******************************************************************************
<> 144:ef7eb2e8f9f7 52 Imported global variables and functions (from other files)
<> 144:ef7eb2e8f9f7 53 ******************************************************************************/
<> 144:ef7eb2e8f9f7 54
<> 144:ef7eb2e8f9f7 55 /******************************************************************************
<> 144:ef7eb2e8f9f7 56 Exported global variables and functions (to be accessed by other files)
<> 144:ef7eb2e8f9f7 57 ******************************************************************************/
<> 144:ef7eb2e8f9f7 58
<> 144:ef7eb2e8f9f7 59 /******************************************************************************
<> 144:ef7eb2e8f9f7 60 Private global variables and functions
<> 144:ef7eb2e8f9f7 61 ******************************************************************************/
<> 144:ef7eb2e8f9f7 62
<> 144:ef7eb2e8f9f7 63
<> 144:ef7eb2e8f9f7 64
<> 144:ef7eb2e8f9f7 65 /* ########################## NVIC functions #################################### */
<> 144:ef7eb2e8f9f7 66 void NVIC_SetPriorityGrouping(uint32_t PriorityGroup)
<> 144:ef7eb2e8f9f7 67 {
<> 144:ef7eb2e8f9f7 68 GIC_SetBinaryPoint(PriorityGroup);
<> 144:ef7eb2e8f9f7 69 }
<> 144:ef7eb2e8f9f7 70
<> 144:ef7eb2e8f9f7 71
<> 144:ef7eb2e8f9f7 72 uint32_t NVIC_GetPriorityGrouping(void)
<> 144:ef7eb2e8f9f7 73 {
<> 144:ef7eb2e8f9f7 74 return GIC_GetBinaryPoint(0);
<> 144:ef7eb2e8f9f7 75 }
<> 144:ef7eb2e8f9f7 76
<> 144:ef7eb2e8f9f7 77
<> 144:ef7eb2e8f9f7 78 void NVIC_EnableIRQ(IRQn_Type IRQn)
<> 144:ef7eb2e8f9f7 79 {
<> 144:ef7eb2e8f9f7 80 GIC_EnableIRQ(IRQn);
<> 144:ef7eb2e8f9f7 81 }
<> 144:ef7eb2e8f9f7 82
<> 144:ef7eb2e8f9f7 83
<> 144:ef7eb2e8f9f7 84 void NVIC_DisableIRQ(IRQn_Type IRQn)
<> 144:ef7eb2e8f9f7 85 {
<> 144:ef7eb2e8f9f7 86 GIC_DisableIRQ(IRQn);
<> 144:ef7eb2e8f9f7 87 }
<> 144:ef7eb2e8f9f7 88
<> 144:ef7eb2e8f9f7 89
<> 144:ef7eb2e8f9f7 90 uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
<> 144:ef7eb2e8f9f7 91 {
<> 144:ef7eb2e8f9f7 92 uint32_t pending;
<> 144:ef7eb2e8f9f7 93
<> 144:ef7eb2e8f9f7 94 pending = GIC_GetIRQStatus(IRQn);
<> 144:ef7eb2e8f9f7 95 pending = (pending & 0x00000001);
<> 144:ef7eb2e8f9f7 96
<> 144:ef7eb2e8f9f7 97 return pending;
<> 144:ef7eb2e8f9f7 98 }
<> 144:ef7eb2e8f9f7 99
<> 144:ef7eb2e8f9f7 100
<> 144:ef7eb2e8f9f7 101 void NVIC_SetPendingIRQ(IRQn_Type IRQn)
<> 144:ef7eb2e8f9f7 102 {
<> 144:ef7eb2e8f9f7 103 GIC_SetPendingIRQ(IRQn);
<> 144:ef7eb2e8f9f7 104 }
<> 144:ef7eb2e8f9f7 105
<> 144:ef7eb2e8f9f7 106
<> 144:ef7eb2e8f9f7 107 void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
<> 144:ef7eb2e8f9f7 108 {
<> 144:ef7eb2e8f9f7 109 GIC_ClearPendingIRQ(IRQn);
<> 144:ef7eb2e8f9f7 110 }
<> 144:ef7eb2e8f9f7 111
<> 144:ef7eb2e8f9f7 112
<> 144:ef7eb2e8f9f7 113 uint32_t NVIC_GetActive(IRQn_Type IRQn)
<> 144:ef7eb2e8f9f7 114 {
<> 144:ef7eb2e8f9f7 115 uint32_t active;
<> 144:ef7eb2e8f9f7 116
<> 144:ef7eb2e8f9f7 117 active = GIC_GetIRQStatus(IRQn);
<> 144:ef7eb2e8f9f7 118 active = ((active >> 1) & 0x00000001);
<> 144:ef7eb2e8f9f7 119
<> 144:ef7eb2e8f9f7 120 return active;
<> 144:ef7eb2e8f9f7 121 }
<> 144:ef7eb2e8f9f7 122
<> 144:ef7eb2e8f9f7 123
<> 144:ef7eb2e8f9f7 124 void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
<> 144:ef7eb2e8f9f7 125 {
<> 144:ef7eb2e8f9f7 126 GIC_SetPriority(IRQn, (priority << 3));
<> 144:ef7eb2e8f9f7 127 }
<> 144:ef7eb2e8f9f7 128
<> 144:ef7eb2e8f9f7 129
<> 144:ef7eb2e8f9f7 130 uint32_t NVIC_GetPriority(IRQn_Type IRQn)
<> 144:ef7eb2e8f9f7 131 {
<> 144:ef7eb2e8f9f7 132 uint32_t priority_field;
<> 144:ef7eb2e8f9f7 133
<> 144:ef7eb2e8f9f7 134 priority_field = GIC_GetPriority(IRQn);
<> 144:ef7eb2e8f9f7 135 priority_field = (priority_field >> 3);
<> 144:ef7eb2e8f9f7 136 return priority_field;
<> 144:ef7eb2e8f9f7 137 }
<> 144:ef7eb2e8f9f7 138
<> 144:ef7eb2e8f9f7 139
<> 144:ef7eb2e8f9f7 140 uint32_t NVIC_EncodePriority (uint32_t PriorityGroup, uint32_t PreemptPriority, uint32_t SubPriority)
<> 144:ef7eb2e8f9f7 141 {
<> 144:ef7eb2e8f9f7 142 uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */
<> 144:ef7eb2e8f9f7 143 uint32_t PreemptPriorityBits;
<> 144:ef7eb2e8f9f7 144 uint32_t SubPriorityBits;
<> 144:ef7eb2e8f9f7 145
<> 144:ef7eb2e8f9f7 146 PreemptPriorityBits = ((7 - PriorityGroupTmp) > PRIO_BITS) ? PRIO_BITS : 7 - PriorityGroupTmp;
<> 144:ef7eb2e8f9f7 147 SubPriorityBits = ((PriorityGroupTmp + PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + PRIO_BITS;
<> 144:ef7eb2e8f9f7 148
<> 144:ef7eb2e8f9f7 149 return (
<> 144:ef7eb2e8f9f7 150 ((PreemptPriority & ((1 << (PreemptPriorityBits)) - 1)) << SubPriorityBits) |
<> 144:ef7eb2e8f9f7 151 ((SubPriority & ((1 << (SubPriorityBits )) - 1)))
<> 144:ef7eb2e8f9f7 152 );
<> 144:ef7eb2e8f9f7 153 }
<> 144:ef7eb2e8f9f7 154
<> 144:ef7eb2e8f9f7 155
<> 144:ef7eb2e8f9f7 156 void NVIC_DecodePriority (uint32_t Priority, uint32_t PriorityGroup, uint32_t* pPreemptPriority, uint32_t* pSubPriority)
<> 144:ef7eb2e8f9f7 157 {
<> 144:ef7eb2e8f9f7 158 uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */
<> 144:ef7eb2e8f9f7 159 uint32_t PreemptPriorityBits;
<> 144:ef7eb2e8f9f7 160 uint32_t SubPriorityBits;
<> 144:ef7eb2e8f9f7 161
<> 144:ef7eb2e8f9f7 162 PreemptPriorityBits = ((7 - PriorityGroupTmp) > PRIO_BITS) ? PRIO_BITS : 7 - PriorityGroupTmp;
<> 144:ef7eb2e8f9f7 163 SubPriorityBits = ((PriorityGroupTmp + PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + PRIO_BITS;
<> 144:ef7eb2e8f9f7 164
<> 144:ef7eb2e8f9f7 165 *pPreemptPriority = (Priority >> SubPriorityBits) & ((1 << (PreemptPriorityBits)) - 1);
<> 144:ef7eb2e8f9f7 166 *pSubPriority = (Priority ) & ((1 << (SubPriorityBits )) - 1);
<> 144:ef7eb2e8f9f7 167 }
<> 144:ef7eb2e8f9f7 168
<> 144:ef7eb2e8f9f7 169 void NVIC_SystemReset(void)
<> 144:ef7eb2e8f9f7 170 {
<> 144:ef7eb2e8f9f7 171 uint16_t reg;
<> 144:ef7eb2e8f9f7 172 uint8_t dummy_read;
<> 144:ef7eb2e8f9f7 173 /* Use Watch Dog Timer to system reset */
<> 144:ef7eb2e8f9f7 174
<> 144:ef7eb2e8f9f7 175 /* Set WT/IT bit of WTCSR to 1 = Watch Dog */
<> 144:ef7eb2e8f9f7 176 /* CLK = 000, 1xP0phi(=33.3333MHz) = 7.7us */
<> 144:ef7eb2e8f9f7 177 reg = (WDT_WTCSR_WRITE | 0x0058);
<> 144:ef7eb2e8f9f7 178 WDTWTCSR = reg;
<> 144:ef7eb2e8f9f7 179
<> 144:ef7eb2e8f9f7 180 /* Clear Count reg */
<> 144:ef7eb2e8f9f7 181 reg = (WDT_WTCNT_WRITE | 0x0000);
<> 144:ef7eb2e8f9f7 182 WDTWTCNT = reg;
<> 144:ef7eb2e8f9f7 183
<> 144:ef7eb2e8f9f7 184 /* Clear WOVF flag */
<> 144:ef7eb2e8f9f7 185 dummy_read = WDTWRCSR;
<> 144:ef7eb2e8f9f7 186 reg = (WDT_WRCSR_WOVF_WRITE | (dummy_read & 0x0000));
<> 144:ef7eb2e8f9f7 187 WDTWRCSR = reg;
<> 144:ef7eb2e8f9f7 188 /* Enable Internal Reset */
<> 144:ef7eb2e8f9f7 189 reg = (WDT_WRCSR_RSTE_WRITE | 0x005F);
<> 144:ef7eb2e8f9f7 190 WDTWRCSR = reg;
<> 144:ef7eb2e8f9f7 191
<> 144:ef7eb2e8f9f7 192 /* Watch Dog start */
<> 144:ef7eb2e8f9f7 193 reg = (WDT_WTCSR_WRITE | 0x0078);
<> 144:ef7eb2e8f9f7 194 WDTWTCSR = reg;
<> 144:ef7eb2e8f9f7 195
<> 144:ef7eb2e8f9f7 196 while(1); /* wait Internal Reset */
<> 144:ef7eb2e8f9f7 197 }
<> 144:ef7eb2e8f9f7 198
<> 144:ef7eb2e8f9f7 199 /* ################################## SysTick function ############################################ */
<> 144:ef7eb2e8f9f7 200 uint32_t SysTick_Config(uint32_t ticks)
<> 144:ef7eb2e8f9f7 201 {
<> 144:ef7eb2e8f9f7 202 /* Not support this function */
<> 144:ef7eb2e8f9f7 203 /* Use mbed Ticker */
<> 144:ef7eb2e8f9f7 204 return (1); /* impossible */
<> 144:ef7eb2e8f9f7 205 }
<> 144:ef7eb2e8f9f7 206
<> 144:ef7eb2e8f9f7 207
<> 144:ef7eb2e8f9f7 208 /* ##################################### Debug In/Output function ########################################### */
<> 144:ef7eb2e8f9f7 209 uint32_t ITM_SendChar (uint32_t ch)
<> 144:ef7eb2e8f9f7 210 {
<> 144:ef7eb2e8f9f7 211 /* Not support this function */
<> 144:ef7eb2e8f9f7 212 /* Use mbed Serial */
<> 144:ef7eb2e8f9f7 213 return (ch);
<> 144:ef7eb2e8f9f7 214 }
<> 144:ef7eb2e8f9f7 215
<> 144:ef7eb2e8f9f7 216
<> 144:ef7eb2e8f9f7 217 int32_t ITM_ReceiveChar (void) {
<> 144:ef7eb2e8f9f7 218 /* Not support this function */
<> 144:ef7eb2e8f9f7 219 /* Use mbed Serial */
<> 144:ef7eb2e8f9f7 220 return (-1); /* no character available */
<> 144:ef7eb2e8f9f7 221 }
<> 144:ef7eb2e8f9f7 222
<> 144:ef7eb2e8f9f7 223
<> 144:ef7eb2e8f9f7 224 int32_t ITM_CheckChar (void) {
<> 144:ef7eb2e8f9f7 225 /* Not support this function */
<> 144:ef7eb2e8f9f7 226 /* Use mbed Serial */
<> 144:ef7eb2e8f9f7 227 return (0); /* no character available */
<> 144:ef7eb2e8f9f7 228 }
<> 144:ef7eb2e8f9f7 229