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"
46 /* USER CODE BEGIN Includes */
48 /* USER CODE END Includes */
50 /* Private variables ---------------------------------------------------------*/
52 PCD_HandleTypeDef hpcd_USB_FS;
54 /* USER CODE BEGIN PV */
55 /* Private variables ---------------------------------------------------------*/
58 /* USER CODE END PV */
60 /* Private function prototypes -----------------------------------------------*/
61 void SystemClock_Config(void);
62 static void MX_GPIO_Init(void);
63 static void MX_I2C1_Init(void);
64 static void MX_I2C2_Init(void);
65 static void MX_USB_PCD_Init(void);
67 /* USER CODE BEGIN PFP */
68 /* Private function prototypes -----------------------------------------------*/
70 /* USER CODE END PFP */
72 /* USER CODE BEGIN 0 */
77 * @brief The application entry point.
83 /* USER CODE BEGIN 1 */
87 /* MCU Configuration----------------------------------------------------------*/
89 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
92 /* USER CODE BEGIN Init */
94 /* USER CODE END Init */
96 /* Configure the system clock */
99 /* USER CODE BEGIN SysInit */
100 usb_init(&usb, &hpcd_USB_FS);
102 /* USER CODE END SysInit */
104 /* Initialize all configured peripherals */
107 // A hack to let USB host reset us
108 LL_GPIO_InitTypeDef gpio;
109 gpio.Pin = LL_GPIO_PIN_12 | LL_GPIO_PIN_13;
110 gpio.Mode = LL_GPIO_MODE_OUTPUT;
111 gpio.Speed = LL_GPIO_SPEED_FREQ_HIGH;
112 gpio.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
113 LL_GPIO_Init(GPIOA, &gpio);
114 LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_12);
115 LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_13);
121 /* USER CODE BEGIN 2 */
125 /* USER CODE END 2 */
128 /* USER CODE BEGIN WHILE */
132 debug_printf("Counter = %d\n", cnt);
133 display_counter(cnt);
134 LL_GPIO_SetOutputPin(LED_GPIO_Port, LED_Pin);
136 LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
140 /* USER CODE END WHILE */
142 /* USER CODE BEGIN 3 */
145 /* USER CODE END 3 */
150 * @brief System Clock Configuration
153 void SystemClock_Config(void)
156 LL_FLASH_SetLatency(LL_FLASH_LATENCY_2);
158 if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2)
164 /* Wait till HSE is ready */
165 while(LL_RCC_HSE_IsReady() != 1)
169 LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1, LL_RCC_PLL_MUL_9);
173 /* Wait till PLL is ready */
174 while(LL_RCC_PLL_IsReady() != 1)
178 LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
180 LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2);
182 LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
184 LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
186 /* Wait till System clock is ready */
187 while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
191 LL_Init1msTick(72000000);
193 LL_SYSTICK_SetClkSource(LL_SYSTICK_CLKSOURCE_HCLK);
195 LL_SetSystemCoreClock(72000000);
197 LL_RCC_SetUSBClockSource(LL_RCC_USB_CLKSOURCE_PLL_DIV_1_5);
199 /* SysTick_IRQn interrupt configuration */
200 NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
203 /* I2C1 init function */
204 static void MX_I2C1_Init(void)
207 LL_I2C_InitTypeDef I2C_InitStruct;
209 LL_GPIO_InitTypeDef GPIO_InitStruct;
211 /**I2C1 GPIO Configuration
215 GPIO_InitStruct.Pin = LL_GPIO_PIN_6|LL_GPIO_PIN_7;
216 GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
217 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
218 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
219 LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
221 /* Peripheral clock enable */
222 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);
224 /**I2C Initialization
226 I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
227 I2C_InitStruct.ClockSpeed = 100000;
228 I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
229 I2C_InitStruct.OwnAddress1 = 0;
230 I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
231 I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
232 LL_I2C_Init(I2C1, &I2C_InitStruct);
234 LL_I2C_SetOwnAddress2(I2C1, 0);
236 LL_I2C_DisableOwnAddress2(I2C1);
238 LL_I2C_DisableGeneralCall(I2C1);
240 LL_I2C_EnableClockStretching(I2C1);
244 /* I2C2 init function */
245 static void MX_I2C2_Init(void)
248 LL_I2C_InitTypeDef I2C_InitStruct;
250 LL_GPIO_InitTypeDef GPIO_InitStruct;
252 /**I2C2 GPIO Configuration
253 PB10 ------> I2C2_SCL
254 PB11 ------> I2C2_SDA
256 GPIO_InitStruct.Pin = LL_GPIO_PIN_10|LL_GPIO_PIN_11;
257 GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
258 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
259 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
260 LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
262 /* Peripheral clock enable */
263 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C2);
265 /**I2C Initialization
267 I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
268 I2C_InitStruct.ClockSpeed = 100000;
269 I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
270 I2C_InitStruct.OwnAddress1 = 0;
271 I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
272 I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
273 LL_I2C_Init(I2C2, &I2C_InitStruct);
275 LL_I2C_SetOwnAddress2(I2C2, 0);
277 LL_I2C_DisableOwnAddress2(I2C2);
279 LL_I2C_DisableGeneralCall(I2C2);
281 LL_I2C_EnableClockStretching(I2C2);
285 /* USB init function */
286 static void MX_USB_PCD_Init(void)
288 hpcd_USB_FS.Instance = USB;
289 hpcd_USB_FS.Init.dev_endpoints = 8;
290 hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
291 hpcd_USB_FS.Init.ep0_mps = DEP0CTL_MPS_64;
292 hpcd_USB_FS.Init.low_power_enable = DISABLE;
293 hpcd_USB_FS.Init.lpm_enable = DISABLE;
294 hpcd_USB_FS.Init.battery_charging_enable = DISABLE;
295 if (HAL_PCD_Init(&hpcd_USB_FS) != HAL_OK)
297 _Error_Handler(__FILE__, __LINE__);
301 /** Configure pins as
308 static void MX_GPIO_Init(void)
311 LL_GPIO_InitTypeDef GPIO_InitStruct;
313 /* GPIO Ports Clock Enable */
314 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOC);
315 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOD);
316 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOB);
317 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
320 LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
323 GPIO_InitStruct.Pin = LED_Pin;
324 GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
325 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
326 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
327 LL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct);
330 GPIO_InitStruct.Pin = BMP_DONE_Pin;
331 GPIO_InitStruct.Mode = LL_GPIO_MODE_FLOATING;
332 LL_GPIO_Init(BMP_DONE_GPIO_Port, &GPIO_InitStruct);
336 /* USER CODE BEGIN 4 */
338 /* USER CODE END 4 */
341 * @brief This function is executed in case of error occurrence.
342 * @param file: The file name as string.
343 * @param line: The line in file as a number.
346 void _Error_Handler(char *file, int line)
348 /* USER CODE BEGIN Error_Handler_Debug */
349 /* User can add his own implementation to report the HAL error return state */
353 /* USER CODE END Error_Handler_Debug */
356 #ifdef USE_FULL_ASSERT
358 * @brief Reports the name of the source file and the source line number
359 * where the assert_param error has occurred.
360 * @param file: pointer to the source file name
361 * @param line: assert_param error line source number
364 void assert_failed(uint8_t* file, uint32_t line)
366 /* USER CODE BEGIN 6 */
367 /* User can add his own implementation to report the file name and line number,
368 tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
369 /* USER CODE END 6 */
371 #endif /* USE_FULL_ASSERT */
381 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/