FreeCalypso > hg > freecalypso-sw
annotate gsm-fw/bsp/timer2.c @ 468:6389bfe95f23
os_tim_ir.c: os_StartTimer(): polish
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Thu, 26 Jun 2014 06:15:10 +0000 |
parents | afceeeb2cba1 |
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1 /****************************************************************************** |
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2 TEXAS INSTRUMENTS INCORPORATED PROPRIETARY INFORMATION |
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3 |
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4 Property of Texas Instruments -- For Unrestricted Internal Use Only |
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5 Unauthorized reproduction and/or distribution is strictly prohibited. This |
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6 product is protected under copyright law and trade secret law as an |
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7 unpublished work. Created 1987, (C) Copyright 1997 Texas Instruments. All |
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8 rights reserved. |
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9 |
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10 |
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11 Filename : timer2.c |
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12 |
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13 Description : Set of useful functions for TIMER module test cases |
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14 |
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15 Project : drivers |
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16 |
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17 Author : pmonteil@tif.ti.com Patrice Monteil. |
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18 Version number : 1.3 |
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19 |
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20 Date and time : 08/18/00 14:42:39 |
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21 |
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22 Previous delta : 07/10/00 16:15:18 |
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23 |
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24 SCCS file : /db/gsm_asp/db_ht96/dsp_0/gsw/rel_0/mcu_l1/release_gprs/RELEASE_GPRS/drivers1/common/SCCS/s.timer2.c |
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25 |
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26 Sccs Id (SID) : '@(#) timer2.c 1.3 08/18/00 14:42:39 ' |
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27 |
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28 |
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29 |
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30 *****************************************************************************/ |
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31 |
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32 #include "../include/sys_types.h" |
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33 |
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34 #include "mem.h" |
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35 #include "timer2.h" |
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36 |
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37 /*--------------------------------------------------------------*/ |
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38 /* Dtimer2_Get_cntlreg() */ |
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39 /*--------------------------------------------------------------*/ |
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40 /* Parameters : none */ |
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41 /* Return : none */ |
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42 /* Functionality : read one of the TIMER register */ |
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43 /*--------------------------------------------------------------*/ |
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44 |
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45 SYS_UWORD16 Dtimer2_Get_cntlreg(void) |
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46 { |
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47 SYS_UWORD16 timerReg; |
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48 |
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49 timerReg = (( * (volatile SYS_UWORD16 *) D_TIMER_CNTL) & D_TIMER_CNTL_MASK); |
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50 return(timerReg); |
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51 } |
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52 |
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53 |
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54 /*--------------------------------------------------------------*/ |
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55 /* Dtimer2_Init_cntl() */ |
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56 /*--------------------------------------------------------------*/ |
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57 /* Parameters :start/stop,reload yes/no,pre scale,ext clk on/off*/ |
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58 /* Return : none */ |
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59 /* Functionality : initialize the timer start, autoreload, Ptv */ |
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60 /* and clock enable */ |
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61 /*--------------------------------------------------------------*/ |
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62 |
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63 void Dtimer2_Init_cntl (SYS_UWORD16 St, SYS_UWORD16 Reload, SYS_UWORD16 clockScale, SYS_UWORD16 clkon) |
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64 { |
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65 SYS_UWORD16 cntl = * (volatile SYS_UWORD16 *) D_TIMER_CNTL; |
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66 |
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67 |
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68 cntl &= ~(D_TIMER_ST | D_TIMER_PTV); /* stop and reset values */ |
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69 |
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70 (Reload) ? (cntl |= D_TIMER_AR) : (cntl &= ~D_TIMER_AR); |
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71 |
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72 cntl |= (clockScale << 2 ); |
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73 |
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74 cntl |= ( clkon << 5 ); |
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75 |
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76 |
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77 * (volatile SYS_UWORD16 *) D_TIMER_LOAD = St; |
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78 |
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79 * (volatile SYS_UWORD16 *) D_TIMER_CNTL = cntl; |
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80 } |
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81 |
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82 /*--------------------------------------------------------------*/ |
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83 /* Dtimer2_AR() */ |
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84 /*--------------------------------------------------------------*/ |
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85 /* Parameters :start/stop,reload yes/no,pre scale,ext clk on/off*/ |
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86 /* Return : none */ |
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87 /* Functionality : set the AR bit Ar = 0 | 1 */ |
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88 /*--------------------------------------------------------------*/ |
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89 |
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90 void Dtimer2_AR(SYS_UWORD16 Ar) |
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91 { |
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92 SYS_UWORD16 cntl = * (volatile SYS_UWORD16 *) D_TIMER_CNTL; |
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93 |
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94 cntl &= ~(D_TIMER_ST); /* stop the timer */ |
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95 |
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96 cntl &= ~(D_TIMER_AR); |
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97 |
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98 cntl |= ( Ar << 1 ); |
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99 |
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100 * (volatile SYS_UWORD16 *) D_TIMER_CNTL = cntl; |
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101 } |
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102 |
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103 /*--------------------------------------------------------------*/ |
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104 /* Dtimer2_PTV() */ |
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105 /*--------------------------------------------------------------*/ |
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106 /* Parameters : pre scale */ |
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107 /* Return : none */ |
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108 /* Functionality : set the Ptv bits Ptv = 0 => 7 */ |
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109 /*--------------------------------------------------------------*/ |
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110 |
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111 void Dtimer2_PTV(SYS_UWORD16 Ptv) |
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112 { |
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113 SYS_UWORD16 cntl = * (volatile SYS_UWORD16 *) D_TIMER_CNTL; |
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114 |
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115 cntl &= ~(D_TIMER_ST); /* stop the timer */ |
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116 |
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117 cntl &= ~(D_TIMER_PTV); /* Ptv[4:0] set to 0 */ |
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118 |
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119 cntl |= ( Ptv << 2 ); |
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120 |
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121 * (volatile SYS_UWORD16 *) D_TIMER_CNTL = cntl; |
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122 } |
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123 |
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124 /*--------------------------------------------------------------*/ |
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125 /* Dtimer1_Clken() */ |
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126 /*--------------------------------------------------------------*/ |
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127 /* Parameters : ext clk on/off */ |
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128 /* Return : none */ |
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129 /* Functionality : set the clock_enable bit En = 0 | 1 */ |
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130 /*--------------------------------------------------------------*/ |
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131 |
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132 void Dtimer2_Clken(SYS_UWORD16 En) |
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133 { |
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134 SYS_UWORD16 cntl = * (volatile SYS_UWORD16 *) D_TIMER_CNTL; |
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135 |
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136 cntl &= ( ~D_TIMER_CLK_EN); |
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137 |
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138 cntl |= ( En << 5 ); |
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139 |
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140 * (volatile SYS_UWORD16 *) D_TIMER_CNTL = cntl; |
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141 } |
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142 |
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143 |
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144 |
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145 /*--------------------------------------------------------------*/ |
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146 /* Dtimer2_Start() */ |
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147 /*--------------------------------------------------------------*/ |
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148 /* Parameters : on/off */ |
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149 /* Return : none */ |
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150 /* Functionality : Start or stop the timer */ |
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151 /*--------------------------------------------------------------*/ |
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152 |
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153 void Dtimer2_Start (SYS_UWORD16 startStop) |
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154 { |
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155 (startStop == D_TIMER_ST) ? |
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156 ((* (SYS_UWORD16 *) D_TIMER_CNTL) |= D_TIMER_ST) : /* condition vrai */ |
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157 ((* (SYS_UWORD16 *) D_TIMER_CNTL) &= ~D_TIMER_ST); /* condition fausse */ |
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158 } |
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159 |
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160 /*--------------------------------------------------------------*/ |
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161 /* Dtimer2_ReadValue() */ |
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162 /*--------------------------------------------------------------*/ |
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163 /* Parameters : on/off */ |
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164 /* Return : none */ |
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165 /* Functionality : Read timer value */ |
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166 /*--------------------------------------------------------------*/ |
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167 |
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168 SYS_UWORD16 Dtimer2_ReadValue (void) |
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169 { |
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170 return(* (SYS_UWORD16 *) D_TIMER_READ); |
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171 } |
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172 |
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173 /*--------------------------------------------------------------*/ |
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174 /* Parameters : on/off */ |
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175 /* Return : none */ |
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176 /* Functionality : Write timer value */ |
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177 /*--------------------------------------------------------------*/ |
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178 |
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179 void Dtimer2_WriteValue (SYS_UWORD16 value) |
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180 { |
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181 (* (SYS_UWORD16 *) D_TIMER_LOAD) = value; |
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182 } |