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@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Child:
144:ef7eb2e8f9f7
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /*******************************************************************************
bogdanm 0:9b334a45a8ff 2 * DISCLAIMER
bogdanm 0:9b334a45a8ff 3 * This software is supplied by Renesas Electronics Corporation and is only
bogdanm 0:9b334a45a8ff 4 * intended for use with Renesas products. No other uses are authorized. This
bogdanm 0:9b334a45a8ff 5 * software is owned by Renesas Electronics Corporation and is protected under
bogdanm 0:9b334a45a8ff 6 * all applicable laws, including copyright laws.
bogdanm 0:9b334a45a8ff 7 * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
bogdanm 0:9b334a45a8ff 8 * THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
bogdanm 0:9b334a45a8ff 9 * LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
bogdanm 0:9b334a45a8ff 10 * AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
bogdanm 0:9b334a45a8ff 11 * TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
bogdanm 0:9b334a45a8ff 12 * ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
bogdanm 0:9b334a45a8ff 13 * FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
bogdanm 0:9b334a45a8ff 14 * ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
bogdanm 0:9b334a45a8ff 15 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
bogdanm 0:9b334a45a8ff 16 * Renesas reserves the right, without notice, to make changes to this software
bogdanm 0:9b334a45a8ff 17 * and to discontinue the availability of this software. By using this software,
bogdanm 0:9b334a45a8ff 18 * you agree to the additional terms and conditions found by accessing the
bogdanm 0:9b334a45a8ff 19 * following link:
bogdanm 0:9b334a45a8ff 20 * http://www.renesas.com/disclaimer
bogdanm 0:9b334a45a8ff 21 * Copyright (C) 2012 - 2015 Renesas Electronics Corporation. All rights reserved.
bogdanm 0:9b334a45a8ff 22 *******************************************************************************/
bogdanm 0:9b334a45a8ff 23 /**************************************************************************//**
bogdanm 0:9b334a45a8ff 24 * @file nvic_wrapper.c
bogdanm 0:9b334a45a8ff 25 * $Rev: $
bogdanm 0:9b334a45a8ff 26 * $Date:: $
bogdanm 0:9b334a45a8ff 27 * @brief Wrapper between NVIC(for Cortex-M) and GIC(for Cortex-A9)
bogdanm 0:9b334a45a8ff 28 ******************************************************************************/
bogdanm 0:9b334a45a8ff 29
bogdanm 0:9b334a45a8ff 30 /******************************************************************************
bogdanm 0:9b334a45a8ff 31 Includes <System Includes> , "Project Includes"
bogdanm 0:9b334a45a8ff 32 ******************************************************************************/
bogdanm 0:9b334a45a8ff 33 #include "MBRZA1H.h"
bogdanm 0:9b334a45a8ff 34 #include "wdt_iodefine.h"
bogdanm 0:9b334a45a8ff 35 #include "nvic_wrapper.h"
bogdanm 0:9b334a45a8ff 36 #include "gic.h"
bogdanm 0:9b334a45a8ff 37
bogdanm 0:9b334a45a8ff 38 /******************************************************************************
bogdanm 0:9b334a45a8ff 39 Typedef definitions
bogdanm 0:9b334a45a8ff 40 ******************************************************************************/
bogdanm 0:9b334a45a8ff 41
bogdanm 0:9b334a45a8ff 42 /******************************************************************************
bogdanm 0:9b334a45a8ff 43 Macro definitions
bogdanm 0:9b334a45a8ff 44 ******************************************************************************/
bogdanm 0:9b334a45a8ff 45 #define PRIO_BITS (7) /* Set binary point to 0 in gic.c */
bogdanm 0:9b334a45a8ff 46 #define WDT_WTCNT_WRITE (0x5A00)
bogdanm 0:9b334a45a8ff 47 #define WDT_WTCSR_WRITE (0xA500)
bogdanm 0:9b334a45a8ff 48 #define WDT_WRCSR_WOVF_WRITE (0xA500)
bogdanm 0:9b334a45a8ff 49 #define WDT_WRCSR_RSTE_WRITE (0x5A00)
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 /******************************************************************************
bogdanm 0:9b334a45a8ff 52 Imported global variables and functions (from other files)
bogdanm 0:9b334a45a8ff 53 ******************************************************************************/
bogdanm 0:9b334a45a8ff 54
bogdanm 0:9b334a45a8ff 55 /******************************************************************************
bogdanm 0:9b334a45a8ff 56 Exported global variables and functions (to be accessed by other files)
bogdanm 0:9b334a45a8ff 57 ******************************************************************************/
bogdanm 0:9b334a45a8ff 58
bogdanm 0:9b334a45a8ff 59 /******************************************************************************
bogdanm 0:9b334a45a8ff 60 Private global variables and functions
bogdanm 0:9b334a45a8ff 61 ******************************************************************************/
bogdanm 0:9b334a45a8ff 62
bogdanm 0:9b334a45a8ff 63
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 /* ########################## NVIC functions #################################### */
bogdanm 0:9b334a45a8ff 66 void NVIC_SetPriorityGrouping(uint32_t PriorityGroup)
bogdanm 0:9b334a45a8ff 67 {
bogdanm 0:9b334a45a8ff 68 GIC_SetBinaryPoint(PriorityGroup);
bogdanm 0:9b334a45a8ff 69 }
bogdanm 0:9b334a45a8ff 70
bogdanm 0:9b334a45a8ff 71
bogdanm 0:9b334a45a8ff 72 uint32_t NVIC_GetPriorityGrouping(void)
bogdanm 0:9b334a45a8ff 73 {
bogdanm 0:9b334a45a8ff 74 return GIC_GetBinaryPoint(0);
bogdanm 0:9b334a45a8ff 75 }
bogdanm 0:9b334a45a8ff 76
bogdanm 0:9b334a45a8ff 77
bogdanm 0:9b334a45a8ff 78 void NVIC_EnableIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 79 {
bogdanm 0:9b334a45a8ff 80 GIC_EnableIRQ(IRQn);
bogdanm 0:9b334a45a8ff 81 }
bogdanm 0:9b334a45a8ff 82
bogdanm 0:9b334a45a8ff 83
bogdanm 0:9b334a45a8ff 84 void NVIC_DisableIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 85 {
bogdanm 0:9b334a45a8ff 86 GIC_DisableIRQ(IRQn);
bogdanm 0:9b334a45a8ff 87 }
bogdanm 0:9b334a45a8ff 88
bogdanm 0:9b334a45a8ff 89
bogdanm 0:9b334a45a8ff 90 uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 91 {
bogdanm 0:9b334a45a8ff 92 uint32_t pending;
bogdanm 0:9b334a45a8ff 93
bogdanm 0:9b334a45a8ff 94 pending = GIC_GetIRQStatus(IRQn);
bogdanm 0:9b334a45a8ff 95 pending = (pending & 0x00000001);
bogdanm 0:9b334a45a8ff 96
bogdanm 0:9b334a45a8ff 97 return pending;
bogdanm 0:9b334a45a8ff 98 }
bogdanm 0:9b334a45a8ff 99
bogdanm 0:9b334a45a8ff 100
bogdanm 0:9b334a45a8ff 101 void NVIC_SetPendingIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 102 {
bogdanm 0:9b334a45a8ff 103 GIC_SetPendingIRQ(IRQn);
bogdanm 0:9b334a45a8ff 104 }
bogdanm 0:9b334a45a8ff 105
bogdanm 0:9b334a45a8ff 106
bogdanm 0:9b334a45a8ff 107 void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 108 {
bogdanm 0:9b334a45a8ff 109 GIC_ClearPendingIRQ(IRQn);
bogdanm 0:9b334a45a8ff 110 }
bogdanm 0:9b334a45a8ff 111
bogdanm 0:9b334a45a8ff 112
bogdanm 0:9b334a45a8ff 113 uint32_t NVIC_GetActive(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 114 {
bogdanm 0:9b334a45a8ff 115 uint32_t active;
bogdanm 0:9b334a45a8ff 116
bogdanm 0:9b334a45a8ff 117 active = GIC_GetIRQStatus(IRQn);
bogdanm 0:9b334a45a8ff 118 active = ((active >> 1) & 0x00000001);
bogdanm 0:9b334a45a8ff 119
bogdanm 0:9b334a45a8ff 120 return active;
bogdanm 0:9b334a45a8ff 121 }
bogdanm 0:9b334a45a8ff 122
bogdanm 0:9b334a45a8ff 123
bogdanm 0:9b334a45a8ff 124 void NVIC_SetPriority(IRQn_Type IRQn, uint32_t priority)
bogdanm 0:9b334a45a8ff 125 {
bogdanm 0:9b334a45a8ff 126 GIC_SetPriority(IRQn, (priority << 3));
bogdanm 0:9b334a45a8ff 127 }
bogdanm 0:9b334a45a8ff 128
bogdanm 0:9b334a45a8ff 129
bogdanm 0:9b334a45a8ff 130 uint32_t NVIC_GetPriority(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 131 {
bogdanm 0:9b334a45a8ff 132 uint32_t priority_field;
bogdanm 0:9b334a45a8ff 133
bogdanm 0:9b334a45a8ff 134 priority_field = GIC_GetPriority(IRQn);
bogdanm 0:9b334a45a8ff 135 priority_field = (priority_field >> 3);
bogdanm 0:9b334a45a8ff 136 return priority_field;
bogdanm 0:9b334a45a8ff 137 }
bogdanm 0:9b334a45a8ff 138
bogdanm 0:9b334a45a8ff 139
bogdanm 0:9b334a45a8ff 140 uint32_t NVIC_EncodePriority (uint32_t PriorityGroup, uint32_t PreemptPriority, uint32_t SubPriority)
bogdanm 0:9b334a45a8ff 141 {
bogdanm 0:9b334a45a8ff 142 uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */
bogdanm 0:9b334a45a8ff 143 uint32_t PreemptPriorityBits;
bogdanm 0:9b334a45a8ff 144 uint32_t SubPriorityBits;
bogdanm 0:9b334a45a8ff 145
bogdanm 0:9b334a45a8ff 146 PreemptPriorityBits = ((7 - PriorityGroupTmp) > PRIO_BITS) ? PRIO_BITS : 7 - PriorityGroupTmp;
bogdanm 0:9b334a45a8ff 147 SubPriorityBits = ((PriorityGroupTmp + PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + PRIO_BITS;
bogdanm 0:9b334a45a8ff 148
bogdanm 0:9b334a45a8ff 149 return (
bogdanm 0:9b334a45a8ff 150 ((PreemptPriority & ((1 << (PreemptPriorityBits)) - 1)) << SubPriorityBits) |
bogdanm 0:9b334a45a8ff 151 ((SubPriority & ((1 << (SubPriorityBits )) - 1)))
bogdanm 0:9b334a45a8ff 152 );
bogdanm 0:9b334a45a8ff 153 }
bogdanm 0:9b334a45a8ff 154
bogdanm 0:9b334a45a8ff 155
bogdanm 0:9b334a45a8ff 156 void NVIC_DecodePriority (uint32_t Priority, uint32_t PriorityGroup, uint32_t* pPreemptPriority, uint32_t* pSubPriority)
bogdanm 0:9b334a45a8ff 157 {
bogdanm 0:9b334a45a8ff 158 uint32_t PriorityGroupTmp = (PriorityGroup & 0x07); /* only values 0..7 are used */
bogdanm 0:9b334a45a8ff 159 uint32_t PreemptPriorityBits;
bogdanm 0:9b334a45a8ff 160 uint32_t SubPriorityBits;
bogdanm 0:9b334a45a8ff 161
bogdanm 0:9b334a45a8ff 162 PreemptPriorityBits = ((7 - PriorityGroupTmp) > PRIO_BITS) ? PRIO_BITS : 7 - PriorityGroupTmp;
bogdanm 0:9b334a45a8ff 163 SubPriorityBits = ((PriorityGroupTmp + PRIO_BITS) < 7) ? 0 : PriorityGroupTmp - 7 + PRIO_BITS;
bogdanm 0:9b334a45a8ff 164
bogdanm 0:9b334a45a8ff 165 *pPreemptPriority = (Priority >> SubPriorityBits) & ((1 << (PreemptPriorityBits)) - 1);
bogdanm 0:9b334a45a8ff 166 *pSubPriority = (Priority ) & ((1 << (SubPriorityBits )) - 1);
bogdanm 0:9b334a45a8ff 167 }
bogdanm 0:9b334a45a8ff 168
bogdanm 0:9b334a45a8ff 169 void NVIC_SystemReset(void)
bogdanm 0:9b334a45a8ff 170 {
bogdanm 0:9b334a45a8ff 171 uint16_t reg;
bogdanm 0:9b334a45a8ff 172 uint8_t dummy_read;
bogdanm 0:9b334a45a8ff 173 /* Use Watch Dog Timer to system reset */
bogdanm 0:9b334a45a8ff 174
bogdanm 0:9b334a45a8ff 175 /* Set WT/IT bit of WTCSR to 1 = Watch Dog */
bogdanm 0:9b334a45a8ff 176 /* CLK = 000, 1xP0phi(=33.3333MHz) = 7.7us */
bogdanm 0:9b334a45a8ff 177 reg = (WDT_WTCSR_WRITE | 0x0058);
bogdanm 0:9b334a45a8ff 178 WDTWTCSR = reg;
bogdanm 0:9b334a45a8ff 179
bogdanm 0:9b334a45a8ff 180 /* Clear Count reg */
bogdanm 0:9b334a45a8ff 181 reg = (WDT_WTCNT_WRITE | 0x0000);
bogdanm 0:9b334a45a8ff 182 WDTWTCNT = reg;
bogdanm 0:9b334a45a8ff 183
bogdanm 0:9b334a45a8ff 184 /* Clear WOVF flag */
bogdanm 0:9b334a45a8ff 185 dummy_read = WDTWRCSR;
bogdanm 0:9b334a45a8ff 186 reg = (WDT_WRCSR_WOVF_WRITE | (dummy_read & 0x0000));
bogdanm 0:9b334a45a8ff 187 WDTWRCSR = reg;
bogdanm 0:9b334a45a8ff 188 /* Enable Internal Reset */
bogdanm 0:9b334a45a8ff 189 reg = (WDT_WRCSR_RSTE_WRITE | 0x005F);
bogdanm 0:9b334a45a8ff 190 WDTWRCSR = reg;
bogdanm 0:9b334a45a8ff 191
bogdanm 0:9b334a45a8ff 192 /* Watch Dog start */
bogdanm 0:9b334a45a8ff 193 reg = (WDT_WTCSR_WRITE | 0x0078);
bogdanm 0:9b334a45a8ff 194 WDTWTCSR = reg;
bogdanm 0:9b334a45a8ff 195
bogdanm 0:9b334a45a8ff 196 while(1); /* wait Internal Reset */
bogdanm 0:9b334a45a8ff 197 }
bogdanm 0:9b334a45a8ff 198
bogdanm 0:9b334a45a8ff 199 /* ################################## SysTick function ############################################ */
bogdanm 0:9b334a45a8ff 200 uint32_t SysTick_Config(uint32_t ticks)
bogdanm 0:9b334a45a8ff 201 {
bogdanm 0:9b334a45a8ff 202 /* Not support this function */
bogdanm 0:9b334a45a8ff 203 /* Use mbed Ticker */
bogdanm 0:9b334a45a8ff 204 return (1); /* impossible */
bogdanm 0:9b334a45a8ff 205 }
bogdanm 0:9b334a45a8ff 206
bogdanm 0:9b334a45a8ff 207
bogdanm 0:9b334a45a8ff 208 /* ##################################### Debug In/Output function ########################################### */
bogdanm 0:9b334a45a8ff 209 uint32_t ITM_SendChar (uint32_t ch)
bogdanm 0:9b334a45a8ff 210 {
bogdanm 0:9b334a45a8ff 211 /* Not support this function */
bogdanm 0:9b334a45a8ff 212 /* Use mbed Serial */
bogdanm 0:9b334a45a8ff 213 return (ch);
bogdanm 0:9b334a45a8ff 214 }
bogdanm 0:9b334a45a8ff 215
bogdanm 0:9b334a45a8ff 216
bogdanm 0:9b334a45a8ff 217 int32_t ITM_ReceiveChar (void) {
bogdanm 0:9b334a45a8ff 218 /* Not support this function */
bogdanm 0:9b334a45a8ff 219 /* Use mbed Serial */
bogdanm 0:9b334a45a8ff 220 return (-1); /* no character available */
bogdanm 0:9b334a45a8ff 221 }
bogdanm 0:9b334a45a8ff 222
bogdanm 0:9b334a45a8ff 223
bogdanm 0:9b334a45a8ff 224 int32_t ITM_CheckChar (void) {
bogdanm 0:9b334a45a8ff 225 /* Not support this function */
bogdanm 0:9b334a45a8ff 226 /* Use mbed Serial */
bogdanm 0:9b334a45a8ff 227 return (0); /* no character available */
bogdanm 0:9b334a45a8ff 228 }
bogdanm 0:9b334a45a8ff 229