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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
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119 class APB1Bus {
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120 public:
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121 static void Enable(unsigned int flag) {
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122 RCC->APB1ENR1 |= flag;
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123 }
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124 };
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125
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126 class APB1Bus2 {
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127 static void Enable(uint32_t flag) {
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128 RCC->APB1ENR2 |= flag;
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129 }
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130 };
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131
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132 template<typename TRegs, typename TBus, uint32_t BASE, uint32_t ENF> class TDevice {
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133 public:
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134 static TRegs* instance() {
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135 return (TRegs*) BASE;
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136 }
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137
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138 static void Enable() {
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139 TBus::Enable(ENF);
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140 }
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141
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142 static uint32_t frequency() {
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143 return 80000000;
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144 }
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145 };
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146
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147 class Hardware {
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148 public:
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149 typedef TDevice<GPIO_TypeDef, GPIOA_BASE, AHB2Bus, RCC_AHB2ENR_GPIOAEN> GpioA;
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150 typedef TDevice<TIM_TypeDef, TIM3_BASE, APB1Bus, RCC_APB1ENR1_TIM3EN> Tim3;
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151
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152 typedef TLed<GpioA, 5> GreenLed;
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153 typedef TLed<GpioA, 6> Led2;
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154 typedef TPwmOut<GpioA, 7, Tim3, 2> PwmLed3;
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155 };
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156
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157 int main(void) {
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158
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159 /**
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160 * IMPORTANT NOTE!
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161 * The symbol VECT_TAB_SRAM needs to be defined when building the project
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162 * if code has been located to RAM and interrupts are used.
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163 * Otherwise the interrupt table located in flash will be used.
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164 * See also the <system_*.c> file and how the SystemInit() function updates
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165 * SCB->VTOR register.
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166 * E.g. SCB->VTOR = 0x20000000;
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167 */
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168
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169 /* TODO - Add your application code here */
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170
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171 Hardware::GpioA::Enable();
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172 Hardware::Tim3::Enable();
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173 Hardware::GreenLed::Init();
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174 Hardware::Led2::Init();
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175 Hardware::PwmLed3::Init(1000);
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176
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177 int ii = 0;
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178 /* Infinite loop */
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179 while (1) {
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180 Hardware::GreenLed::Toogle();
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181 Hardware::Led2::Toogle();
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182
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183 Hardware::PwmLed3::SetDutyFactor(ii / 10.f);
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184
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185 ii = (ii + 1) % 11; // 0 .. 10
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186
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187 for (int i = 0; i < 1000000; i++) {
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188
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189 }
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190 }
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191 }
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