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a rough draft of Hardware Abstraction Layer for C++ STM32L476RG drivers
author cin
date Thu, 12 Jan 2017 02:45:43 +0300
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children 0c59e7a7782a
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-1:000000000000 0:32a3b1785697
1 /**
2 ******************************************************************************
3 * File Name : main.c
4 * Description : Main program body
5 ******************************************************************************
6 *
7 * COPYRIGHT(c) 2017 STMicroelectronics
8 *
9 * Redistribution and use in source and binary forms, with or without modification,
10 * are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
16 * 3. Neither the name of STMicroelectronics nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 ******************************************************************************
32 */
33 /* Includes ------------------------------------------------------------------*/
34 #include "main.h"
35 #include "stm32l4xx_hal.h"
36 #include "tim.h"
37 #include "usart.h"
38 #include "gpio.h"
39
40 /* USER CODE BEGIN Includes */
41
42 /* USER CODE END Includes */
43
44 /* Private variables ---------------------------------------------------------*/
45
46 /* USER CODE BEGIN PV */
47 /* Private variables ---------------------------------------------------------*/
48
49 /* USER CODE END PV */
50
51 /* Private function prototypes -----------------------------------------------*/
52 void SystemClock_Config(void);
53 void Error_Handler(void);
54
55 /* USER CODE BEGIN PFP */
56 /* Private function prototypes -----------------------------------------------*/
57
58 /* USER CODE END PFP */
59
60 /* USER CODE BEGIN 0 */
61
62 /* USER CODE END 0 */
63
64 int main(void)
65 {
66
67 /* USER CODE BEGIN 1 */
68
69 /* USER CODE END 1 */
70
71 /* MCU Configuration----------------------------------------------------------*/
72
73 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
74 HAL_Init();
75
76 /* Configure the system clock */
77 SystemClock_Config();
78
79 /* Initialize all configured peripherals */
80 MX_GPIO_Init();
81 MX_USART2_UART_Init();
82 MX_TIM2_Init();
83
84 /* USER CODE BEGIN 2 */
85
86 /* USER CODE END 2 */
87
88 /* Infinite loop */
89 /* USER CODE BEGIN WHILE */
90 while (1)
91 {
92 /* USER CODE END WHILE */
93
94 /* USER CODE BEGIN 3 */
95
96 }
97 /* USER CODE END 3 */
98
99 }
100
101 /** System Clock Configuration
102 */
103 void SystemClock_Config(void)
104 {
105
106 RCC_OscInitTypeDef RCC_OscInitStruct;
107 RCC_ClkInitTypeDef RCC_ClkInitStruct;
108 RCC_PeriphCLKInitTypeDef PeriphClkInit;
109
110 /**Initializes the CPU, AHB and APB busses clocks
111 */
112 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
113 RCC_OscInitStruct.HSIState = RCC_HSI_ON;
114 RCC_OscInitStruct.HSICalibrationValue = 16;
115 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
116 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
117 RCC_OscInitStruct.PLL.PLLM = 1;
118 RCC_OscInitStruct.PLL.PLLN = 10;
119 RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
120 RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
121 RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
122 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
123 {
124 Error_Handler();
125 }
126
127 /**Initializes the CPU, AHB and APB busses clocks
128 */
129 RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
130 |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
131 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
132 RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
133 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
134 RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
135
136 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
137 {
138 Error_Handler();
139 }
140
141 PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
142 PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
143 if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
144 {
145 Error_Handler();
146 }
147
148 /**Configure the main internal regulator output voltage
149 */
150 if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
151 {
152 Error_Handler();
153 }
154
155 /**Configure the Systick interrupt time
156 */
157 HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
158
159 /**Configure the Systick
160 */
161 HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
162
163 /* SysTick_IRQn interrupt configuration */
164 HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
165 }
166
167 /* USER CODE BEGIN 4 */
168
169 /* USER CODE END 4 */
170
171 /**
172 * @brief Period elapsed callback in non blocking mode
173 * @note This function is called when TIM6 interrupt took place, inside
174 * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
175 * a global variable "uwTick" used as application time base.
176 * @param htim : TIM handle
177 * @retval None
178 */
179 void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
180 {
181 /* USER CODE BEGIN Callback 0 */
182
183 /* USER CODE END Callback 0 */
184 if (htim->Instance == TIM6) {
185 HAL_IncTick();
186 }
187 /* USER CODE BEGIN Callback 1 */
188
189 /* USER CODE END Callback 1 */
190 }
191
192 /**
193 * @brief This function is executed in case of error occurrence.
194 * @param None
195 * @retval None
196 */
197 void Error_Handler(void)
198 {
199 /* USER CODE BEGIN Error_Handler */
200 /* User can add his own implementation to report the HAL error return state */
201 while(1)
202 {
203 }
204 /* USER CODE END Error_Handler */
205 }
206
207 #ifdef USE_FULL_ASSERT
208
209 /**
210 * @brief Reports the name of the source file and the source line number
211 * where the assert_param error has occurred.
212 * @param file: pointer to the source file name
213 * @param line: assert_param error line source number
214 * @retval None
215 */
216 void assert_failed(uint8_t* file, uint32_t line)
217 {
218 /* USER CODE BEGIN 6 */
219 /* User can add his own implementation to report the file name and line number,
220 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
221 /* USER CODE END 6 */
222
223 }
224
225 #endif
226
227 /**
228 * @}
229 */
230
231 /**
232 * @}
233 */
234
235 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/