1 /***********************************************************************************************************************
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3 * This software is supplied by Renesas Electronics Corporation and is only intended for use with Renesas products.
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4 * No other uses are authorized. This software is owned by Renesas Electronics Corporation and is protected under all
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5 * applicable laws, including copyright laws.
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6 * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIESREGARDING THIS SOFTWARE, WHETHER EXPRESS, IMPLIED
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7 * OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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8 * NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY
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9 * LAW, NEITHER RENESAS ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE FOR ANY DIRECT,
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10 * INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR
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11 * ITS AFFILIATES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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12 * Renesas reserves the right, without notice, to make changes to this software and to discontinue the availability
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13 * of this software. By using this software, you agree to the additional terms and conditions found by accessing the
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15 * http://www.renesas.com/disclaimer
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17 * Copyright (C) 2015 Renesas Electronics Corporation. All rights reserved.
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18 ***********************************************************************************************************************/
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20 /***********************************************************************************************************************
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21 * File Name : r_cg_cgc.c
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22 * Version : Code Generator for RX113 V1.02.01.02 [28 May 2015]
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23 * Device(s) : R5F51138AxFP
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25 * Description : This file implements device driver for CGC module.
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26 * Creation Date: 21/09/2015
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27 ***********************************************************************************************************************/
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29 /***********************************************************************************************************************
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31 ***********************************************************************************************************************/
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32 /* Start user code for pragma. Do not edit comment generated here */
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33 /* End user code. Do not edit comment generated here */
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35 /***********************************************************************************************************************
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37 ***********************************************************************************************************************/
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38 #include "r_cg_macrodriver.h"
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39 #include "r_cg_cgc.h"
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40 /* Start user code for include. Do not edit comment generated here */
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41 /* End user code. Do not edit comment generated here */
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42 #include "r_cg_userdefine.h"
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44 /***********************************************************************************************************************
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45 Global variables and functions
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46 ***********************************************************************************************************************/
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47 /* Start user code for global. Do not edit comment generated here */
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48 /* End user code. Do not edit comment generated here */
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50 /***********************************************************************************************************************
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51 * Function Name: R_CGC_Create
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52 * Description : This function initializes the clock generator.
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54 * Return Value : None
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55 ***********************************************************************************************************************/
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56 void R_CGC_Create(void)
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58 uint32_t sckcr_dummy;
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61 /* Set main clock control registers */
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62 SYSTEM.MOFCR.BYTE = _00_CGC_MAINOSC_RESONATOR | _20_CGC_MAINOSC_OVER10M;
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63 SYSTEM.MOSCWTCR.BYTE = _06_CGC_OSC_WAIT_CYCLE_32768;
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65 /* Set main clock operation */
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66 SYSTEM.MOSCCR.BIT.MOSTP = 0U;
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68 /* Wait for main clock oscillator wait counter overflow */
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69 while (1U != SYSTEM.OSCOVFSR.BIT.MOOVF);
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71 /* Set system clock */
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72 sckcr_dummy = _00000000_CGC_PCLKD_DIV_1 | _00000000_CGC_PCLKB_DIV_1 | _00000000_CGC_ICLK_DIV_1 |
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73 _00000000_CGC_FCLK_DIV_1;
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74 SYSTEM.SCKCR.LONG = sckcr_dummy;
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76 while (SYSTEM.SCKCR.LONG != sckcr_dummy);
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78 /* Set PLL circuit */
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79 SYSTEM.PLLCR.WORD = _0002_CGC_PLL_FREQ_DIV_4 | _0F00_CGC_PLL_FREQ_MUL_8;
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80 SYSTEM.PLLCR2.BIT.PLLEN = 0U;
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82 /* Wait for PLL wait counter overflow */
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83 while (1U != SYSTEM.OSCOVFSR.BIT.PLOVF);
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85 /* Stop sub-clock */
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86 SYSTEM.SOSCCR.BIT.SOSTP = 1U;
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88 /* Wait for the register modification to complete */
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89 while (1U != SYSTEM.SOSCCR.BIT.SOSTP);
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91 /* Stop sub-clock */
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92 RTC.RCR3.BIT.RTCEN = 0U;
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94 /* Wait for the register modification to complete */
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95 while (0U != RTC.RCR3.BIT.RTCEN);
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97 /* Wait for 5 sub-clock cycles */
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98 for (w_count = 0U; w_count < _007B_CGC_SUBSTPWT_WAIT; w_count++)
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100 __asm volatile( "NOP" );
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103 /* Set sub-clock drive capacity */
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104 RTC.RCR3.BIT.RTCDV = 1U;
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106 /* Wait for the register modification to complete */
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107 while (1U != RTC.RCR3.BIT.RTCDV);
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109 /* Set sub-clock */
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110 SYSTEM.SOSCCR.BIT.SOSTP = 0U;
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112 /* Wait for the register modification to complete */
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113 while (0U != SYSTEM.SOSCCR.BIT.SOSTP);
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115 /* Wait for sub-clock to be stable */
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116 for (w_count = 0U; w_count < _00061A81_CGC_SUBOSCWT_WAIT; w_count++)
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118 __asm volatile( "NOP" );
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121 /* Set clock source */
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122 SYSTEM.SCKCR3.WORD = _0400_CGC_CLOCKSOURCE_PLL;
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124 while (SYSTEM.SCKCR3.WORD != _0400_CGC_CLOCKSOURCE_PLL);
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127 SYSTEM.LOCOCR.BIT.LCSTP = 1U;
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130 /* Start user code for adding. Do not edit comment generated here */
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131 /* End user code. Do not edit comment generated here */
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