Src/main.c (HAL_TimeBase_RTC_WKUP)

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

/** ****************************************************************************** * @file HAL/HAL_TimeBase_RTC_WKUP/Src/main.c * @author MCD Application Team * @brief Main program body ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "main.h" /** @addtogroup STM32F4xx_HAL_Examples * @{ */ /** @defgroup HAL_TimeBase_RTC_WakeUp HAL TimeBase RTC WakeUp * @{ */ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ uint32_t uwIncrementState = 0; /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ static void SystemClock_Config(void); static void Error_Handler(void); /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ int main(void) { /* STM32F4xx HAL library initialization: - Configure the Flash prefetch, instruction and Data caches - Configure the RTC WakeUp to generate an interrupt each 1 msec - Set NVIC Group Priority to 4 - Global MSP (MCU Support Package) initialization */ HAL_Init(); /* Configure the system clock */ SystemClock_Config(); /* Configure LED1, LED2 and LED3 */ BSP_LED_Init(LED1); BSP_LED_Init(LED2); BSP_LED_Init(LED3); /* Configure BUTTON_KEY */ BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_EXTI); /* -3- Toggle LED1, LED2 and LED3 in an Infinite loop */ while(1) { /* Insert delay 500 ms */ HAL_Delay(500); /* Toggle LED1 */ BSP_LED_Toggle(LED1); /* Toggle LED2 */ BSP_LED_Toggle(LED2); /* Toggle LED3 */ BSP_LED_Toggle(LED3); } } /** * @brief EXTI line detection callback. * @param GPIO_Pin: Specifies the pins connected EXTI line * @retval None */ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) { if(GPIO_Pin == KEY_BUTTON_PIN) { if (uwIncrementState == 0) { /* Suspend tick increment */ HAL_SuspendTick(); /* Change the Push button state */ uwIncrementState = 1; } else { /* Resume tick increment */ HAL_ResumeTick(); /* Change the Push button state */ uwIncrementState = 0; } } } /** * @brief This function is executed in case of error occurrence. * @param None * @retval None */ static void Error_Handler(void) { while (1) { } } /** * @brief System Clock Configuration * The system Clock is configured as follow : * System Clock source = PLL (HSE) * SYSCLK(Hz) = 180000000 * HCLK(Hz) = 180000000 * AHB Prescaler = 1 * APB1 Prescaler = 4 * APB2 Prescaler = 2 * HSE Frequency(Hz) = 8000000 * PLL_M = 8 * PLL_N = 360 * PLL_P = 2 * PLL_Q = 7 * VDD(V) = 3.3 * Main regulator output voltage = Scale1 mode * Flash Latency(WS) = 5 * @param None * @retval None */ static void SystemClock_Config(void) { RCC_ClkInitTypeDef RCC_ClkInitStruct; RCC_OscInitTypeDef RCC_OscInitStruct; /* Enable Power Control clock */ __HAL_RCC_PWR_CLK_ENABLE(); /* The voltage scaling allows optimizing the power consumption when the device is clocked below the maximum system frequency, to update the voltage scaling value regarding system frequency refer to product datasheet. */ __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); /* Enable HSE Oscillator and activate PLL with HSE as source */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 8; RCC_OscInitStruct.PLL.PLLN = 360; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 7; if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { /* Initialization Error */ Error_Handler(); } if(HAL_PWREx_EnableOverDrive() != HAL_OK) { /* Initialization Error */ Error_Handler(); } /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2); RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) { /* Initialization Error */ Error_Handler(); } } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t* file, uint32_t line) { /* USER CODE BEGIN 6 */ /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* USER CODE END 6 */ } #endif /** * @} */ /** * @} */