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1 /*
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2 ******************************************************************************
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3 File: main.c
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4 Info: Generated by Atollic TrueSTUDIO(R) 7.0.1 2017-01-12
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6 The MIT License (MIT)
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7 Copyright (c) 2009-2016 Atollic AB
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8
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9 Permission is hereby granted, free of charge, to any person obtaining a copy
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10 of this software and associated documentation files (the "Software"), to deal
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11 in the Software without restriction, including without limitation the rights
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12 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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13 copies of the Software, and to permit persons to whom the Software is
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14 furnished to do so, subject to the following conditions:
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15
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16 The above copyright notice and this permission notice shall be included in all
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17 copies or substantial portions of the Software.
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18
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19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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21 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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22 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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23 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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24 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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25 SOFTWARE.
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26 ******************************************************************************
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27 */
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28
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29 /* Includes */
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30 #include "stm32l4xx.h"
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31 #include "gpio.h"
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32
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33 /* Private macro */
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34 /* Private variables */
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35 /* Private function prototypes */
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36 /* Private functions */
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37
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38 /**
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39 **===========================================================================
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40 **
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41 ** Abstract: main program
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42 **
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43 **===========================================================================
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44 */
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45
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46 using namespace halpp;
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47
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48 template<typename TDev, typename TCounter = uint32_t> class TTimerBase {
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49 public:
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50 typedef TCounter counter_t;
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51
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52 static void init() {
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53 TDev::instance()->EGR = TIM_EGR_UG;
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54 }
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55
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56 static void period(counter_t value) {
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57 TDev::instance()->ARR = value;
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58 }
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59
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60 static counter_t period() {
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61 return (counter_t) TDev::instance()->ARR;
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62 }
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63
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64 static void prescaler(counter_t value) {
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65 TDev::instance()->PSC = value;
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66 }
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67
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68 static counter_t prescaler() {
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69 return TDev::instance()->PSC;
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70 }
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71
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72 static uint32_t resolution() {
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73 return TDev::frequency() / prescaler();
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74 }
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75 };
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76
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77 template<typename TDev, typename TCounter = uint32_t> class TTimerChannel1 {
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78 public:
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79 typedef TCounter counter_t;
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80 static void duty(counter_t value) {
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81 TDev::instance()->CCR1 = (uint32_t)value;
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82 }
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83
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84 static counter_t duty() {
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85 return (counter_t)TDev::instance()->CCR1;
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86 }
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87 };
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88
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89 template<typename TDev, unsigned short PIN, typename TTraits = TGpioTraits<TDev> > class TLed {
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90 TLed();
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91 explicit TLed(const TLed&);
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92 public:
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93 static void Init() {
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94 TTraits::SetPinMode(PIN, GpioModeOutput);
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95 TTraits::SetPinOutputType(PIN, GpioPushPull);
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96 TTraits::SetPinPullMode(PIN, GpioNoPull);
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97 }
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98
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99 static void Set() {
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100 TTraits::WritePin(PIN, 1);
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101 }
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102
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103 static void Reset() {
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104 TTraits::WritePin(PIN, 0);
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105 }
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106
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107 static void Toogle() {
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108 TTraits::TooglePin(PIN);
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109 }
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110 };
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111
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112 class AHB2Bus {
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113 public:
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114 static void enable(unsigned int flag) {
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115 RCC->AHB2ENR |= flag;
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116 }
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117
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118 static uint32_t clock() {
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119
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120 }
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121 };
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122
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123 class APB1Bus {
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124 public:
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125 static void enable(unsigned int flag) {
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126 RCC->APB1ENR1 |= flag;
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127 }
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128 };
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129
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130 class APB1Bus2 {
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131 static void enable(uint32_t flag) {
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132 RCC->APB1ENR2 |= flag;
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133 }
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134 };
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135
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136 template <typename TRegs, typename TBus, uint32_t BASE, uint32_t ENF> class TDevice {
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137 public:
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138 typedef TBus bus_t;
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139
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140 static TRegs* instance() {
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141 return (TRegs*) BASE;
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142 }
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143
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144 static void enable() {
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145 TBus::enable(ENF);
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146 }
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147
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148 static uint32_t frequency() {
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149 return 80000000;
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150 }
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151 };
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152
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153 class OscMsi {
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154 };
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155
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156 class OscHsi {
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157 };
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158
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159 class OscHse {
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160 };
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161
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162 class OscLsi {
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163 };
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164
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165 class OscLse {
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166 };
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167
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168 class Pll {
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169 };
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170
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171 class Pclk1 {
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172 public:
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173 uint32_t clock() {
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174 return APB1Bus::clock();
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175 }
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176 };
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177
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178 class Rcc {
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179 public:
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180 typedef enum {
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181 PClk1,
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182 Apb1TimerClk,
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183 PClk2,
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184 Apb2TimerClk,
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185 HClk,
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186 SysClk,
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187 HsiClk,
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188 HseClk,
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189 LsiClk,
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190 LseClk,
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191 MsiClk,
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192 PllClk,
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193 PllQClk,
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194 PllPClk,
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195 PllSai1P,
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196 PllSai1Q,
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197 PllSai1R,
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198 PllSai2P,
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199 PllSai2R
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200 } ClockSource;
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201
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202 template <ClockSource clk> unit32_t clock();
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203 };
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204
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205 class SysClk {
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206 public:
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207 uint32_t clock() {
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208 }
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209 };
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210
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211 class UartClockMux {
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212 public:
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213 template <typename TClk> void select_clock_source();
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214 };
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215
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216 template<> void UartClockMux::select_clock_source<Pclk1>() {
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217 }
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218
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219 template<> void UartClockMux::select_clock_source<SysClk>() {
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220 }
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221
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222 class Hardware {
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223 public:
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224 typedef TDevice<GPIO_TypeDef, GPIOA_BASE, AHB2Bus, RCC_AHB2ENR_GPIOAEN> GpioA;
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225 typedef TDevice<TIM_TypeDef, TIM3_BASE, APB1Bus, RCC_APB1ENR1_TIM3EN> Tim3;
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226
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227 typedef TLed<GpioA, 5> GreenLed;
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228 typedef TLed<GpioA, 6> Led2;
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229 typedef TPwmOut<GpioA, 7, Tim3, 2> PwmLed3;
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230 };
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231
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232 int main(void) {
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233
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234 /**
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235 * IMPORTANT NOTE!
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236 * The symbol VECT_TAB_SRAM needs to be defined when building the project
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237 * if code has been located to RAM and interrupts are used.
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238 * Otherwise the interrupt table located in flash will be used.
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239 * See also the <system_*.c> file and how the SystemInit() function updates
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240 * SCB->VTOR register.
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241 * E.g. SCB->VTOR = 0x20000000;
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242 */
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243
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244 /* TODO - Add your application code here */
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245
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246 Hardware::GpioA::Enable();
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247 Hardware::Tim3::Enable();
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248 Hardware::GreenLed::Init();
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249 Hardware::Led2::Init();
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250 Hardware::PwmLed3::Init(1000);
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251
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252 int ii = 0;
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253 /* Infinite loop */
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254 while (1) {
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255 Hardware::GreenLed::Toogle();
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256 Hardware::Led2::Toogle();
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257
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258 Hardware::PwmLed3::SetDutyFactor(ii / 10.f);
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259
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260 ii = (ii + 1) % 11; // 0 .. 10
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261
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262 for (int i = 0; i < 1000000; i++) {
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263
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264 }
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265 }
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266 }
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