3 ******************************************************************************
5 * @brief : Main program body
6 ******************************************************************************
7 ** This notice applies to any and all portions of this file
8 * that are not between comment pairs USER CODE BEGIN and
9 * USER CODE END. Other portions of this file, whether
10 * inserted by the user or by software development tools
11 * are owned by their respective copyright owners.
13 * COPYRIGHT(c) 2018 STMicroelectronics
15 * Redistribution and use in source and binary forms, with or without modification,
16 * are permitted provided that the following conditions are met:
17 * 1. Redistributions of source code must retain the above copyright notice,
18 * this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright notice,
20 * this list of conditions and the following disclaimer in the documentation
21 * and/or other materials provided with the distribution.
22 * 3. Neither the name of STMicroelectronics nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
27 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
29 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
32 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
33 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
34 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 ******************************************************************************
39 /* Includes ------------------------------------------------------------------*/
42 #include "stm32f1xx_hal.h"
45 /* USER CODE BEGIN Includes */
47 /* USER CODE END Includes */
49 /* Private variables ---------------------------------------------------------*/
51 PCD_HandleTypeDef hpcd_USB_FS;
53 /* USER CODE BEGIN PV */
54 /* Private variables ---------------------------------------------------------*/
57 /* USER CODE END PV */
59 /* Private function prototypes -----------------------------------------------*/
60 void SystemClock_Config(void);
61 static void MX_GPIO_Init(void);
62 static void MX_I2C1_Init(void);
63 static void MX_I2C2_Init(void);
64 static void MX_USB_PCD_Init(void);
66 /* USER CODE BEGIN PFP */
67 /* Private function prototypes -----------------------------------------------*/
69 /* USER CODE END PFP */
71 /* USER CODE BEGIN 0 */
76 * @brief The application entry point.
82 /* USER CODE BEGIN 1 */
86 /* MCU Configuration----------------------------------------------------------*/
88 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
91 /* USER CODE BEGIN Init */
93 /* USER CODE END Init */
95 /* Configure the system clock */
98 /* USER CODE BEGIN SysInit */
99 usb_init(&usb, &hpcd_USB_FS);
101 /* USER CODE END SysInit */
103 /* Initialize all configured peripherals */
106 // A hack to let USB host reset us
107 LL_GPIO_InitTypeDef gpio;
108 gpio.Pin = LL_GPIO_PIN_12 | LL_GPIO_PIN_13;
109 gpio.Mode = LL_GPIO_MODE_OUTPUT;
110 gpio.Speed = LL_GPIO_SPEED_FREQ_HIGH;
111 gpio.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
112 LL_GPIO_Init(GPIOA, &gpio);
113 LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_12);
114 LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_13);
120 /* USER CODE BEGIN 2 */
123 /* USER CODE END 2 */
126 /* USER CODE BEGIN WHILE */
130 LL_GPIO_SetOutputPin(LED_GPIO_Port, LED_Pin);
132 LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
134 debug_printf("Counter = %d\n", cnt++);
136 /* USER CODE END WHILE */
138 /* USER CODE BEGIN 3 */
141 /* USER CODE END 3 */
146 * @brief System Clock Configuration
149 void SystemClock_Config(void)
152 LL_FLASH_SetLatency(LL_FLASH_LATENCY_2);
154 if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2)
160 /* Wait till HSE is ready */
161 while(LL_RCC_HSE_IsReady() != 1)
165 LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1, LL_RCC_PLL_MUL_9);
169 /* Wait till PLL is ready */
170 while(LL_RCC_PLL_IsReady() != 1)
174 LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
176 LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2);
178 LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
180 LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
182 /* Wait till System clock is ready */
183 while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
187 LL_Init1msTick(72000000);
189 LL_SYSTICK_SetClkSource(LL_SYSTICK_CLKSOURCE_HCLK);
191 LL_SetSystemCoreClock(72000000);
193 LL_RCC_SetUSBClockSource(LL_RCC_USB_CLKSOURCE_PLL_DIV_1_5);
195 /* SysTick_IRQn interrupt configuration */
196 NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
199 /* I2C1 init function */
200 static void MX_I2C1_Init(void)
203 LL_I2C_InitTypeDef I2C_InitStruct;
205 LL_GPIO_InitTypeDef GPIO_InitStruct;
207 /**I2C1 GPIO Configuration
211 GPIO_InitStruct.Pin = LL_GPIO_PIN_6|LL_GPIO_PIN_7;
212 GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
213 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
214 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
215 LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
217 /* Peripheral clock enable */
218 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);
220 /**I2C Initialization
222 I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
223 I2C_InitStruct.ClockSpeed = 100000;
224 I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
225 I2C_InitStruct.OwnAddress1 = 0;
226 I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
227 I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
228 LL_I2C_Init(I2C1, &I2C_InitStruct);
230 LL_I2C_SetOwnAddress2(I2C1, 0);
232 LL_I2C_DisableOwnAddress2(I2C1);
234 LL_I2C_DisableGeneralCall(I2C1);
236 LL_I2C_EnableClockStretching(I2C1);
240 /* I2C2 init function */
241 static void MX_I2C2_Init(void)
244 LL_I2C_InitTypeDef I2C_InitStruct;
246 LL_GPIO_InitTypeDef GPIO_InitStruct;
248 /**I2C2 GPIO Configuration
249 PB10 ------> I2C2_SCL
250 PB11 ------> I2C2_SDA
252 GPIO_InitStruct.Pin = LL_GPIO_PIN_10|LL_GPIO_PIN_11;
253 GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
254 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
255 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
256 LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
258 /* Peripheral clock enable */
259 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C2);
261 /**I2C Initialization
263 I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
264 I2C_InitStruct.ClockSpeed = 400000;
265 I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
266 I2C_InitStruct.OwnAddress1 = 0;
267 I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
268 I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
269 LL_I2C_Init(I2C2, &I2C_InitStruct);
271 LL_I2C_SetOwnAddress2(I2C2, 0);
273 LL_I2C_DisableOwnAddress2(I2C2);
275 LL_I2C_DisableGeneralCall(I2C2);
277 LL_I2C_EnableClockStretching(I2C2);
281 /* USB init function */
282 static void MX_USB_PCD_Init(void)
284 hpcd_USB_FS.Instance = USB;
285 hpcd_USB_FS.Init.dev_endpoints = 8;
286 hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
287 hpcd_USB_FS.Init.ep0_mps = DEP0CTL_MPS_64;
288 hpcd_USB_FS.Init.low_power_enable = DISABLE;
289 hpcd_USB_FS.Init.lpm_enable = DISABLE;
290 hpcd_USB_FS.Init.battery_charging_enable = DISABLE;
291 if (HAL_PCD_Init(&hpcd_USB_FS) != HAL_OK)
293 _Error_Handler(__FILE__, __LINE__);
297 /** Configure pins as
304 static void MX_GPIO_Init(void)
307 LL_GPIO_InitTypeDef GPIO_InitStruct;
309 /* GPIO Ports Clock Enable */
310 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOC);
311 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOD);
312 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOB);
313 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
316 LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
319 GPIO_InitStruct.Pin = LED_Pin;
320 GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
321 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
322 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
323 LL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct);
326 GPIO_InitStruct.Pin = BMP_DONE_Pin;
327 GPIO_InitStruct.Mode = LL_GPIO_MODE_FLOATING;
328 LL_GPIO_Init(BMP_DONE_GPIO_Port, &GPIO_InitStruct);
332 /* USER CODE BEGIN 4 */
334 /* USER CODE END 4 */
337 * @brief This function is executed in case of error occurrence.
338 * @param file: The file name as string.
339 * @param line: The line in file as a number.
342 void _Error_Handler(char *file, int line)
344 /* USER CODE BEGIN Error_Handler_Debug */
345 /* User can add his own implementation to report the HAL error return state */
349 /* USER CODE END Error_Handler_Debug */
352 #ifdef USE_FULL_ASSERT
354 * @brief Reports the name of the source file and the source line number
355 * where the assert_param error has occurred.
356 * @param file: pointer to the source file name
357 * @param line: assert_param error line source number
360 void assert_failed(uint8_t* file, uint32_t line)
362 /* USER CODE BEGIN 6 */
363 /* User can add his own implementation to report the file name and line number,
364 tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
365 /* USER CODE END 6 */
367 #endif /* USE_FULL_ASSERT */
377 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/