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 ------------------------------------------------------------------*/
41 #include "stm32f1xx_hal.h"
43 /* 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);
66 static void MX_TIM4_Init(void);
68 /* USER CODE BEGIN PFP */
69 /* Private function prototypes -----------------------------------------------*/
71 /* USER CODE END PFP */
73 /* USER CODE BEGIN 0 */
78 * @brief The application entry point.
84 /* USER CODE BEGIN 1 */
88 /* MCU Configuration----------------------------------------------------------*/
90 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
93 /* USER CODE BEGIN Init */
95 /* USER CODE END Init */
97 /* Configure the system clock */
100 /* USER CODE BEGIN SysInit */
101 usb_init(&usb, &hpcd_USB_FS);
103 /* USER CODE END SysInit */
105 /* Initialize all configured peripherals */
108 // A hack to let USB host reset us
109 LL_GPIO_InitTypeDef gpio;
110 gpio.Pin = LL_GPIO_PIN_12 | LL_GPIO_PIN_13;
111 gpio.Mode = LL_GPIO_MODE_OUTPUT;
112 gpio.Speed = LL_GPIO_SPEED_FREQ_HIGH;
113 gpio.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
114 LL_GPIO_Init(GPIOA, &gpio);
115 LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_12);
116 LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_13);
123 /* USER CODE BEGIN 2 */
127 LL_TIM_EnableCounter(TIM4);
128 LL_TIM_EnableIT_UPDATE(TIM4);
129 LL_TIM_GenerateEvent_UPDATE(TIM4);
131 /* USER CODE END 2 */
134 /* USER CODE BEGIN WHILE */
138 debug_printf("Counter = %d\n", cnt);
139 display_counter(cnt);
143 /* USER CODE END WHILE */
145 /* USER CODE BEGIN 3 */
148 /* USER CODE END 3 */
153 * @brief System Clock Configuration
156 void SystemClock_Config(void)
159 LL_FLASH_SetLatency(LL_FLASH_LATENCY_2);
161 if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2)
167 /* Wait till HSE is ready */
168 while(LL_RCC_HSE_IsReady() != 1)
172 LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1, LL_RCC_PLL_MUL_9);
176 /* Wait till PLL is ready */
177 while(LL_RCC_PLL_IsReady() != 1)
181 LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
183 LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2);
185 LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
187 LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
189 /* Wait till System clock is ready */
190 while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
194 LL_Init1msTick(72000000);
196 LL_SYSTICK_SetClkSource(LL_SYSTICK_CLKSOURCE_HCLK);
198 LL_SetSystemCoreClock(72000000);
200 LL_RCC_SetUSBClockSource(LL_RCC_USB_CLKSOURCE_PLL_DIV_1_5);
202 /* SysTick_IRQn interrupt configuration */
203 NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
206 /* I2C1 init function */
207 static void MX_I2C1_Init(void)
210 LL_I2C_InitTypeDef I2C_InitStruct;
212 LL_GPIO_InitTypeDef GPIO_InitStruct;
214 /**I2C1 GPIO Configuration
218 GPIO_InitStruct.Pin = LL_GPIO_PIN_6|LL_GPIO_PIN_7;
219 GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
220 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
221 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
222 LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
224 /* Peripheral clock enable */
225 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);
227 /**I2C Initialization
229 I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
230 I2C_InitStruct.ClockSpeed = 100000;
231 I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
232 I2C_InitStruct.OwnAddress1 = 0;
233 I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
234 I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
235 LL_I2C_Init(I2C1, &I2C_InitStruct);
237 LL_I2C_SetOwnAddress2(I2C1, 0);
239 LL_I2C_DisableOwnAddress2(I2C1);
241 LL_I2C_DisableGeneralCall(I2C1);
243 LL_I2C_EnableClockStretching(I2C1);
247 /* I2C2 init function */
248 static void MX_I2C2_Init(void)
251 LL_I2C_InitTypeDef I2C_InitStruct;
253 LL_GPIO_InitTypeDef GPIO_InitStruct;
255 /**I2C2 GPIO Configuration
256 PB10 ------> I2C2_SCL
257 PB11 ------> I2C2_SDA
259 GPIO_InitStruct.Pin = LL_GPIO_PIN_10|LL_GPIO_PIN_11;
260 GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
261 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
262 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
263 LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
265 /* Peripheral clock enable */
266 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C2);
268 /**I2C Initialization
270 I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
271 I2C_InitStruct.ClockSpeed = 400000;
272 I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
273 I2C_InitStruct.OwnAddress1 = 0;
274 I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
275 I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
276 LL_I2C_Init(I2C2, &I2C_InitStruct);
278 LL_I2C_SetOwnAddress2(I2C2, 0);
280 LL_I2C_DisableOwnAddress2(I2C2);
282 LL_I2C_DisableGeneralCall(I2C2);
284 LL_I2C_EnableClockStretching(I2C2);
288 /* TIM4 init function */
289 static void MX_TIM4_Init(void)
292 LL_TIM_InitTypeDef TIM_InitStruct;
293 LL_TIM_OC_InitTypeDef TIM_OC_InitStruct;
295 /* Peripheral clock enable */
296 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM4);
298 /* TIM4 interrupt Init */
299 NVIC_SetPriority(TIM4_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
300 NVIC_EnableIRQ(TIM4_IRQn);
302 TIM_InitStruct.Prescaler = 7200;
303 TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
304 TIM_InitStruct.Autoreload = 1000;
305 TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
306 LL_TIM_Init(TIM4, &TIM_InitStruct);
308 LL_TIM_DisableARRPreload(TIM4);
310 LL_TIM_SetClockSource(TIM4, LL_TIM_CLOCKSOURCE_INTERNAL);
312 TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_FROZEN;
313 TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_DISABLE;
314 TIM_OC_InitStruct.OCNState = LL_TIM_OCSTATE_DISABLE;
315 TIM_OC_InitStruct.CompareValue = 0;
316 TIM_OC_InitStruct.OCPolarity = LL_TIM_OCPOLARITY_HIGH;
317 LL_TIM_OC_Init(TIM4, LL_TIM_CHANNEL_CH1, &TIM_OC_InitStruct);
319 LL_TIM_OC_DisableFast(TIM4, LL_TIM_CHANNEL_CH1);
321 LL_TIM_SetTriggerOutput(TIM4, LL_TIM_TRGO_RESET);
323 LL_TIM_DisableMasterSlaveMode(TIM4);
327 /* USB init function */
328 static void MX_USB_PCD_Init(void)
331 hpcd_USB_FS.Instance = USB;
332 hpcd_USB_FS.Init.dev_endpoints = 8;
333 hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
334 hpcd_USB_FS.Init.ep0_mps = DEP0CTL_MPS_64;
335 hpcd_USB_FS.Init.low_power_enable = DISABLE;
336 hpcd_USB_FS.Init.lpm_enable = DISABLE;
337 hpcd_USB_FS.Init.battery_charging_enable = DISABLE;
338 if (HAL_PCD_Init(&hpcd_USB_FS) != HAL_OK)
340 _Error_Handler(__FILE__, __LINE__);
345 /** Configure pins as
352 static void MX_GPIO_Init(void)
355 LL_GPIO_InitTypeDef GPIO_InitStruct;
357 /* GPIO Ports Clock Enable */
358 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOC);
359 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOD);
360 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOB);
361 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
364 LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
367 GPIO_InitStruct.Pin = LED_Pin;
368 GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
369 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
370 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
371 LL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct);
374 GPIO_InitStruct.Pin = BMP_DONE_Pin;
375 GPIO_InitStruct.Mode = LL_GPIO_MODE_FLOATING;
376 LL_GPIO_Init(BMP_DONE_GPIO_Port, &GPIO_InitStruct);
380 /* USER CODE BEGIN 4 */
382 /* USER CODE END 4 */
385 * @brief This function is executed in case of error occurrence.
386 * @param file: The file name as string.
387 * @param line: The line in file as a number.
390 void _Error_Handler(char *file, int line)
392 /* USER CODE BEGIN Error_Handler_Debug */
393 /* User can add his own implementation to report the HAL error return state */
397 /* USER CODE END Error_Handler_Debug */
400 #ifdef USE_FULL_ASSERT
402 * @brief Reports the name of the source file and the source line number
403 * where the assert_param error has occurred.
404 * @param file: pointer to the source file name
405 * @param line: assert_param error line source number
408 void assert_failed(uint8_t* file, uint32_t line)
410 /* USER CODE BEGIN 6 */
411 /* User can add his own implementation to report the file name and line number,
412 tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
413 /* USER CODE END 6 */
415 #endif /* USE_FULL_ASSERT */
425 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/