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 */
50 /* USER CODE END Includes */
52 /* Private variables ---------------------------------------------------------*/
54 PCD_HandleTypeDef hpcd_USB_FS;
56 /* USER CODE BEGIN PV */
57 /* Private variables ---------------------------------------------------------*/
60 /* USER CODE END PV */
62 /* Private function prototypes -----------------------------------------------*/
63 void SystemClock_Config(void);
64 static void MX_GPIO_Init(void);
65 static void MX_DMA_Init(void);
66 static void MX_I2C1_Init(void);
67 static void MX_I2C2_Init(void);
68 static void MX_USB_PCD_Init(void);
69 static void MX_TIM4_Init(void);
71 /* USER CODE BEGIN PFP */
72 /* Private function prototypes -----------------------------------------------*/
74 /* USER CODE END PFP */
76 /* USER CODE BEGIN 0 */
81 * @brief The application entry point.
87 /* USER CODE BEGIN 1 */
91 /* MCU Configuration----------------------------------------------------------*/
93 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
96 /* USER CODE BEGIN Init */
98 /* USER CODE END Init */
100 /* Configure the system clock */
101 SystemClock_Config();
103 /* USER CODE BEGIN SysInit */
104 usb_init(&usb, &hpcd_USB_FS);
106 /* USER CODE END SysInit */
108 /* Initialize all configured peripherals */
112 // A hack to let USB host reset us
113 LL_GPIO_InitTypeDef gpio;
114 gpio.Pin = LL_GPIO_PIN_12 | LL_GPIO_PIN_13;
115 gpio.Mode = LL_GPIO_MODE_OUTPUT;
116 gpio.Speed = LL_GPIO_SPEED_FREQ_HIGH;
117 gpio.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
118 LL_GPIO_Init(GPIOA, &gpio);
119 LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_12);
120 LL_GPIO_ResetOutputPin(GPIOA, LL_GPIO_PIN_13);
127 /* USER CODE BEGIN 2 */
132 LL_TIM_EnableCounter(TIM4);
133 LL_TIM_EnableIT_UPDATE(TIM4);
134 LL_TIM_GenerateEvent_UPDATE(TIM4);
138 byte buf[5] = { 0xff, 0xff, 10, 0xff, 0xff };
143 /* USER CODE END 2 */
146 /* USER CODE BEGIN WHILE */
149 if (rx_packet_state == 1 && !tx_packet_state)
151 static byte led_state;
153 LL_GPIO_SetOutputPin(LED_GPIO_Port, LED_Pin);
155 LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
158 // display_buffer(rx_packet);
160 tx_packet[0] = adjusted_temp >> 8;
161 tx_packet[1] = adjusted_temp & 0xff;
162 tx_packet[2] = adjusted_press >> 8;
163 tx_packet[3] = adjusted_press & 0xff;
164 usb_ep_send(&usb, 0x82, tx_packet, 8);
166 usb_ep_receive(&usb, 0x01, rx_packet, 64);
171 // debug_printf("Counter = %d\n", cnt);
172 // display_counter(cnt);
176 /* USER CODE END WHILE */
178 /* USER CODE BEGIN 3 */
181 /* USER CODE END 3 */
186 * @brief System Clock Configuration
189 void SystemClock_Config(void)
192 LL_FLASH_SetLatency(LL_FLASH_LATENCY_2);
194 if(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_2)
200 /* Wait till HSE is ready */
201 while(LL_RCC_HSE_IsReady() != 1)
205 LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1, LL_RCC_PLL_MUL_9);
209 /* Wait till PLL is ready */
210 while(LL_RCC_PLL_IsReady() != 1)
214 LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
216 LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2);
218 LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
220 LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
222 /* Wait till System clock is ready */
223 while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
227 LL_Init1msTick(72000000);
229 LL_SYSTICK_SetClkSource(LL_SYSTICK_CLKSOURCE_HCLK);
231 LL_SetSystemCoreClock(72000000);
233 LL_RCC_SetUSBClockSource(LL_RCC_USB_CLKSOURCE_PLL_DIV_1_5);
235 /* SysTick_IRQn interrupt configuration */
236 NVIC_SetPriority(SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
239 /* I2C1 init function */
240 static void MX_I2C1_Init(void)
243 LL_I2C_InitTypeDef I2C_InitStruct;
245 LL_GPIO_InitTypeDef GPIO_InitStruct;
247 /**I2C1 GPIO Configuration
251 GPIO_InitStruct.Pin = LL_GPIO_PIN_6|LL_GPIO_PIN_7;
252 GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
253 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
254 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
255 LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
257 /* Peripheral clock enable */
258 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);
263 LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_7, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);
265 LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_7, LL_DMA_PRIORITY_LOW);
267 LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_7, LL_DMA_MODE_NORMAL);
269 LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_7, LL_DMA_PERIPH_NOINCREMENT);
271 LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_7, LL_DMA_MEMORY_INCREMENT);
273 LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_7, LL_DMA_PDATAALIGN_BYTE);
275 LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_7, LL_DMA_MDATAALIGN_BYTE);
278 LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_CHANNEL_6, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
280 LL_DMA_SetChannelPriorityLevel(DMA1, LL_DMA_CHANNEL_6, LL_DMA_PRIORITY_LOW);
282 LL_DMA_SetMode(DMA1, LL_DMA_CHANNEL_6, LL_DMA_MODE_NORMAL);
284 LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_CHANNEL_6, LL_DMA_PERIPH_NOINCREMENT);
286 LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_CHANNEL_6, LL_DMA_MEMORY_INCREMENT);
288 LL_DMA_SetPeriphSize(DMA1, LL_DMA_CHANNEL_6, LL_DMA_PDATAALIGN_BYTE);
290 LL_DMA_SetMemorySize(DMA1, LL_DMA_CHANNEL_6, LL_DMA_MDATAALIGN_BYTE);
292 /**I2C Initialization
294 I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
295 I2C_InitStruct.ClockSpeed = 400000;
296 I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
297 I2C_InitStruct.OwnAddress1 = 0;
298 I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
299 I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
300 LL_I2C_Init(I2C1, &I2C_InitStruct);
302 LL_I2C_SetOwnAddress2(I2C1, 0);
304 LL_I2C_DisableOwnAddress2(I2C1);
306 LL_I2C_DisableGeneralCall(I2C1);
308 LL_I2C_EnableClockStretching(I2C1);
312 /* I2C2 init function */
313 static void MX_I2C2_Init(void)
316 LL_I2C_InitTypeDef I2C_InitStruct;
318 LL_GPIO_InitTypeDef GPIO_InitStruct;
320 /**I2C2 GPIO Configuration
321 PB10 ------> I2C2_SCL
322 PB11 ------> I2C2_SDA
324 GPIO_InitStruct.Pin = LL_GPIO_PIN_10|LL_GPIO_PIN_11;
325 GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
326 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
327 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
328 LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
330 /* Peripheral clock enable */
331 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C2);
333 /**I2C Initialization
335 I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
336 I2C_InitStruct.ClockSpeed = 400000;
337 I2C_InitStruct.DutyCycle = LL_I2C_DUTYCYCLE_2;
338 I2C_InitStruct.OwnAddress1 = 0;
339 I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
340 I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
341 LL_I2C_Init(I2C2, &I2C_InitStruct);
343 LL_I2C_SetOwnAddress2(I2C2, 0);
345 LL_I2C_DisableOwnAddress2(I2C2);
347 LL_I2C_DisableGeneralCall(I2C2);
349 LL_I2C_EnableClockStretching(I2C2);
353 /* TIM4 init function */
354 static void MX_TIM4_Init(void)
357 LL_TIM_InitTypeDef TIM_InitStruct;
358 LL_TIM_OC_InitTypeDef TIM_OC_InitStruct;
360 /* Peripheral clock enable */
361 LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM4);
363 /* TIM4 interrupt Init */
364 NVIC_SetPriority(TIM4_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
365 NVIC_EnableIRQ(TIM4_IRQn);
367 TIM_InitStruct.Prescaler = 7200;
368 TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
369 TIM_InitStruct.Autoreload = 1000;
370 TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
371 LL_TIM_Init(TIM4, &TIM_InitStruct);
373 LL_TIM_DisableARRPreload(TIM4);
375 LL_TIM_SetClockSource(TIM4, LL_TIM_CLOCKSOURCE_INTERNAL);
377 TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_FROZEN;
378 TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_DISABLE;
379 TIM_OC_InitStruct.OCNState = LL_TIM_OCSTATE_DISABLE;
380 TIM_OC_InitStruct.CompareValue = 0;
381 TIM_OC_InitStruct.OCPolarity = LL_TIM_OCPOLARITY_HIGH;
382 LL_TIM_OC_Init(TIM4, LL_TIM_CHANNEL_CH1, &TIM_OC_InitStruct);
384 LL_TIM_OC_DisableFast(TIM4, LL_TIM_CHANNEL_CH1);
386 LL_TIM_SetTriggerOutput(TIM4, LL_TIM_TRGO_RESET);
388 LL_TIM_DisableMasterSlaveMode(TIM4);
392 /* USB init function */
393 static void MX_USB_PCD_Init(void)
396 hpcd_USB_FS.Instance = USB;
397 hpcd_USB_FS.Init.dev_endpoints = 8;
398 hpcd_USB_FS.Init.speed = PCD_SPEED_FULL;
399 hpcd_USB_FS.Init.ep0_mps = DEP0CTL_MPS_64;
400 hpcd_USB_FS.Init.low_power_enable = DISABLE;
401 hpcd_USB_FS.Init.lpm_enable = DISABLE;
402 hpcd_USB_FS.Init.battery_charging_enable = DISABLE;
403 if (HAL_PCD_Init(&hpcd_USB_FS) != HAL_OK)
405 _Error_Handler(__FILE__, __LINE__);
411 * Enable DMA controller clock
413 static void MX_DMA_Init(void)
415 /* Init with LL driver */
416 /* DMA controller clock enable */
417 LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMA1);
419 /* DMA interrupt init */
420 /* DMA1_Channel6_IRQn interrupt configuration */
421 NVIC_SetPriority(DMA1_Channel6_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
422 NVIC_EnableIRQ(DMA1_Channel6_IRQn);
423 /* DMA1_Channel7_IRQn interrupt configuration */
424 NVIC_SetPriority(DMA1_Channel7_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(),0, 0));
425 NVIC_EnableIRQ(DMA1_Channel7_IRQn);
429 /** Configure pins as
436 static void MX_GPIO_Init(void)
439 LL_GPIO_InitTypeDef GPIO_InitStruct;
441 /* GPIO Ports Clock Enable */
442 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOC);
443 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOD);
444 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOB);
445 LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
448 LL_GPIO_ResetOutputPin(LED_GPIO_Port, LED_Pin);
451 GPIO_InitStruct.Pin = LED_Pin;
452 GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
453 GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
454 GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
455 LL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct);
458 GPIO_InitStruct.Pin = BMP_DONE_Pin;
459 GPIO_InitStruct.Mode = LL_GPIO_MODE_FLOATING;
460 LL_GPIO_Init(BMP_DONE_GPIO_Port, &GPIO_InitStruct);
464 /* USER CODE BEGIN 4 */
466 /* USER CODE END 4 */
469 * @brief This function is executed in case of error occurrence.
470 * @param file: The file name as string.
471 * @param line: The line in file as a number.
474 void _Error_Handler(char *file, int line)
476 /* USER CODE BEGIN Error_Handler_Debug */
477 /* User can add his own implementation to report the HAL error return state */
481 /* USER CODE END Error_Handler_Debug */
484 #ifdef USE_FULL_ASSERT
486 * @brief Reports the name of the source file and the source line number
487 * where the assert_param error has occurred.
488 * @param file: pointer to the source file name
489 * @param line: assert_param error line source number
492 void assert_failed(uint8_t* file, uint32_t line)
494 /* USER CODE BEGIN 6 */
495 /* User can add his own implementation to report the file name and line number,
496 tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
497 /* USER CODE END 6 */
499 #endif /* USE_FULL_ASSERT */
509 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/