1 /* USER CODE BEGIN Header */
2 /**
3 ******************************************************************************
4 * @file : main.c
5 * @brief : Main program body
6 ******************************************************************************
7 * @attention
8 *
9 * <h2><center>© Copyright (c) 2020 STMicroelectronics.
10 * All rights reserved.</center></h2>
11 *
12 * This software component is licensed by ST under BSD 3-Clause license,
13 * the "License"; You may not use this file except in compliance with the
14 * License. You may obtain a copy of the License at:
15 * opensource.org/licenses/BSD-3-Clause
16 *
17 ******************************************************************************
18 */
19 /* USER CODE END Header */
20 /* Includes ------------------------------------------------------------------*/
21 #include "main.h"
22
23 /* Private includes ----------------------------------------------------------*/
24 /* USER CODE BEGIN Includes */
25 #include "SEGGER_RTT.h"
26 #include <stdio.h>
27 #include "sx1280-hal.h"
28
29 /* USER CODE END Includes */
30
31 /* Private typedef -----------------------------------------------------------*/
32 /* USER CODE BEGIN PTD */
33
34 /* USER CODE END PTD */
35
36 /* Private define ------------------------------------------------------------*/
37 /* USER CODE BEGIN PD */
38 /* USER CODE END PD */
39
40 /* Private macro -------------------------------------------------------------*/
41 /* USER CODE BEGIN PM */
42 #define printf(format, ...) SEGGER_RTT_printf(0, format, ## __VA_ARGS__)
43
44 /* USER CODE END PM */
45
46 /* Private variables ---------------------------------------------------------*/
47 LPTIM_HandleTypeDef hlptim1;
48
49 SPI_HandleTypeDef hspi1;
50 DMA_HandleTypeDef hdma_spi1_rx;
51 DMA_HandleTypeDef hdma_spi1_tx;
52
53 UART_HandleTypeDef huart2;
54
55 /* USER CODE BEGIN PV */
56
57 /* USER CODE END PV */
58
59 /* Private function prototypes -----------------------------------------------*/
60 void SystemClock_Config(void);
61 static void MX_GPIO_Init(void);
62 static void MX_DMA_Init(void);
63 static void MX_LPTIM1_Init(void);
64 static void MX_SPI1_Init(void);
65 static void MX_USART2_UART_Init(void);
66 /* USER CODE BEGIN PFP */
67 void btstack_port(void);
68 /* USER CODE END PFP */
69
70 /* Private user code ---------------------------------------------------------*/
71 /* USER CODE BEGIN 0 */
72
73 /* USER CODE END 0 */
74
75 /**
76 * @brief The application entry point.
77 * @retval int
78 */
main(void)79 int main(void)
80 {
81 /* USER CODE BEGIN 1 */
82
83 /* USER CODE END 1 */
84
85 /* MCU Configuration--------------------------------------------------------*/
86
87 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
88 HAL_Init();
89
90 /* USER CODE BEGIN Init */
91
92 /* USER CODE END Init */
93
94 /* Configure the system clock */
95 SystemClock_Config();
96
97 /* USER CODE BEGIN SysInit */
98
99 /* USER CODE END SysInit */
100
101 /* Initialize all configured peripherals */
102 MX_GPIO_Init();
103 MX_DMA_Init();
104 MX_LPTIM1_Init();
105 MX_SPI1_Init();
106 MX_USART2_UART_Init();
107 /* USER CODE BEGIN 2 */
108
109 // HAL_LPTIM_Counter_Start_IT same as HAL_LPTIM_Counter_Start but also enables IRQs
110 HAL_LPTIM_Counter_Start_IT(&hlptim1, 0xffff);
111
112 btstack_port();
113
114 /* USER CODE END 2 */
115
116 /* Infinite loop */
117 /* USER CODE BEGIN WHILE */
118 while (1)
119 {
120 /* USER CODE END WHILE */
121
122 /* USER CODE BEGIN 3 */
123 }
124 /* USER CODE END 3 */
125 }
126
127 /**
128 * @brief System Clock Configuration
129 * @retval None
130 */
SystemClock_Config(void)131 void SystemClock_Config(void)
132 {
133 RCC_OscInitTypeDef RCC_OscInitStruct = {0};
134 RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
135 RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
136
137 /** Configure LSE Drive Capability
138 */
139 HAL_PWR_EnableBkUpAccess();
140 __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);
141 /** Initializes the RCC Oscillators according to the specified parameters
142 * in the RCC_OscInitTypeDef structure.
143 */
144 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE|RCC_OSCILLATORTYPE_MSI;
145 RCC_OscInitStruct.LSEState = RCC_LSE_ON;
146 RCC_OscInitStruct.MSIState = RCC_MSI_ON;
147 RCC_OscInitStruct.MSICalibrationValue = 0;
148 RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
149 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
150 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
151 RCC_OscInitStruct.PLL.PLLM = 1;
152 RCC_OscInitStruct.PLL.PLLN = 36;
153 RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
154 RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
155 RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
156 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
157 {
158 Error_Handler();
159 }
160 /** Initializes the CPU, AHB and APB buses clocks
161 */
162 RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
163 |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
164 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
165 RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
166 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
167 RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
168
169 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
170 {
171 Error_Handler();
172 }
173 PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2|RCC_PERIPHCLK_LPTIM1;
174 PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
175 PeriphClkInit.Lptim1ClockSelection = RCC_LPTIM1CLKSOURCE_LSE;
176 if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
177 {
178 Error_Handler();
179 }
180 /** Configure the main internal regulator output voltage
181 */
182 if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
183 {
184 Error_Handler();
185 }
186 /** Enable MSI Auto calibration
187 */
188 HAL_RCCEx_EnableMSIPLLMode();
189 }
190
191 /**
192 * @brief LPTIM1 Initialization Function
193 * @param None
194 * @retval None
195 */
MX_LPTIM1_Init(void)196 static void MX_LPTIM1_Init(void)
197 {
198
199 /* USER CODE BEGIN LPTIM1_Init 0 */
200
201 /* USER CODE END LPTIM1_Init 0 */
202
203 /* USER CODE BEGIN LPTIM1_Init 1 */
204
205 /* USER CODE END LPTIM1_Init 1 */
206 hlptim1.Instance = LPTIM1;
207 hlptim1.Init.Clock.Source = LPTIM_CLOCKSOURCE_APBCLOCK_LPOSC;
208 hlptim1.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV1;
209 hlptim1.Init.Trigger.Source = LPTIM_TRIGSOURCE_SOFTWARE;
210 hlptim1.Init.OutputPolarity = LPTIM_OUTPUTPOLARITY_HIGH;
211 hlptim1.Init.UpdateMode = LPTIM_UPDATE_IMMEDIATE;
212 hlptim1.Init.CounterSource = LPTIM_COUNTERSOURCE_INTERNAL;
213 hlptim1.Init.Input1Source = LPTIM_INPUT1SOURCE_GPIO;
214 hlptim1.Init.Input2Source = LPTIM_INPUT2SOURCE_GPIO;
215 if (HAL_LPTIM_Init(&hlptim1) != HAL_OK)
216 {
217 Error_Handler();
218 }
219 /* USER CODE BEGIN LPTIM1_Init 2 */
220
221 /* USER CODE END LPTIM1_Init 2 */
222
223 }
224
225 /**
226 * @brief SPI1 Initialization Function
227 * @param None
228 * @retval None
229 */
MX_SPI1_Init(void)230 static void MX_SPI1_Init(void)
231 {
232
233 /* USER CODE BEGIN SPI1_Init 0 */
234
235 /* USER CODE END SPI1_Init 0 */
236
237 /* USER CODE BEGIN SPI1_Init 1 */
238
239 /* USER CODE END SPI1_Init 1 */
240 /* SPI1 parameter configuration*/
241 hspi1.Instance = SPI1;
242 hspi1.Init.Mode = SPI_MODE_MASTER;
243 hspi1.Init.Direction = SPI_DIRECTION_2LINES;
244 hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
245 hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
246 hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
247 hspi1.Init.NSS = SPI_NSS_SOFT;
248 hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;
249 hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
250 hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
251 hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
252 hspi1.Init.CRCPolynomial = 7;
253 hspi1.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE;
254 hspi1.Init.NSSPMode = SPI_NSS_PULSE_ENABLE;
255 if (HAL_SPI_Init(&hspi1) != HAL_OK)
256 {
257 Error_Handler();
258 }
259 /* USER CODE BEGIN SPI1_Init 2 */
260
261 /* USER CODE END SPI1_Init 2 */
262
263 }
264
265 /**
266 * @brief USART2 Initialization Function
267 * @param None
268 * @retval None
269 */
MX_USART2_UART_Init(void)270 static void MX_USART2_UART_Init(void)
271 {
272
273 /* USER CODE BEGIN USART2_Init 0 */
274
275 /* USER CODE END USART2_Init 0 */
276
277 /* USER CODE BEGIN USART2_Init 1 */
278
279 /* USER CODE END USART2_Init 1 */
280 huart2.Instance = USART2;
281 huart2.Init.BaudRate = 115200;
282 huart2.Init.WordLength = UART_WORDLENGTH_8B;
283 huart2.Init.StopBits = UART_STOPBITS_1;
284 huart2.Init.Parity = UART_PARITY_NONE;
285 huart2.Init.Mode = UART_MODE_TX_RX;
286 huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
287 huart2.Init.OverSampling = UART_OVERSAMPLING_16;
288 huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
289 huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
290 if (HAL_UART_Init(&huart2) != HAL_OK)
291 {
292 Error_Handler();
293 }
294 /* USER CODE BEGIN USART2_Init 2 */
295
296 /* USER CODE END USART2_Init 2 */
297
298 }
299
300 /**
301 * Enable DMA controller clock
302 */
MX_DMA_Init(void)303 static void MX_DMA_Init(void)
304 {
305
306 /* DMA controller clock enable */
307 __HAL_RCC_DMA1_CLK_ENABLE();
308
309 /* DMA interrupt init */
310 /* DMA1_Channel2_IRQn interrupt configuration */
311 HAL_NVIC_SetPriority(DMA1_Channel2_IRQn, 0, 0);
312 HAL_NVIC_EnableIRQ(DMA1_Channel2_IRQn);
313 /* DMA1_Channel3_IRQn interrupt configuration */
314 HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 0, 0);
315 HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);
316
317 }
318
319 /**
320 * @brief GPIO Initialization Function
321 * @param None
322 * @retval None
323 */
MX_GPIO_Init(void)324 static void MX_GPIO_Init(void)
325 {
326 GPIO_InitTypeDef GPIO_InitStruct = {0};
327
328 /* GPIO Ports Clock Enable */
329 __HAL_RCC_GPIOC_CLK_ENABLE();
330 __HAL_RCC_GPIOH_CLK_ENABLE();
331 __HAL_RCC_GPIOA_CLK_ENABLE();
332 __HAL_RCC_GPIOB_CLK_ENABLE();
333
334 /*Configure GPIO pin Output Level */
335 HAL_GPIO_WritePin(GPIOC, LED_RX_Pin|LED_TX_Pin, GPIO_PIN_RESET);
336
337 /*Configure GPIO pin Output Level */
338 HAL_GPIO_WritePin(GPIOA, RADIO_nRESET_Pin|RADIO_NSS_Pin, GPIO_PIN_RESET);
339
340 /*Configure GPIO pin : B1_Pin */
341 GPIO_InitStruct.Pin = B1_Pin;
342 GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
343 GPIO_InitStruct.Pull = GPIO_NOPULL;
344 HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);
345
346 /*Configure GPIO pins : LED_RX_Pin LED_TX_Pin */
347 GPIO_InitStruct.Pin = LED_RX_Pin|LED_TX_Pin;
348 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
349 GPIO_InitStruct.Pull = GPIO_NOPULL;
350 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
351 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
352
353 /*Configure GPIO pins : RADIO_nRESET_Pin RADIO_NSS_Pin */
354 GPIO_InitStruct.Pin = RADIO_nRESET_Pin|RADIO_NSS_Pin;
355 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
356 GPIO_InitStruct.Pull = GPIO_NOPULL;
357 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
358 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
359
360 /*Configure GPIO pin : RADIO_BUSY_Pin */
361 GPIO_InitStruct.Pin = RADIO_BUSY_Pin;
362 GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
363 GPIO_InitStruct.Pull = GPIO_NOPULL;
364 HAL_GPIO_Init(RADIO_BUSY_GPIO_Port, &GPIO_InitStruct);
365
366 /*Configure GPIO pin : RADIO_DIO1_Pin */
367 GPIO_InitStruct.Pin = RADIO_DIO1_Pin;
368 GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
369 GPIO_InitStruct.Pull = GPIO_NOPULL;
370 HAL_GPIO_Init(RADIO_DIO1_GPIO_Port, &GPIO_InitStruct);
371
372 /* EXTI interrupt init*/
373 HAL_NVIC_SetPriority(EXTI4_IRQn, 0, 0);
374 HAL_NVIC_EnableIRQ(EXTI4_IRQn);
375
376 }
377
378 /* USER CODE BEGIN 4 */
379
380 /* USER CODE END 4 */
381
382 /**
383 * @brief This function is executed in case of error occurrence.
384 * @retval None
385 */
Error_Handler(void)386 void Error_Handler(void)
387 {
388 /* USER CODE BEGIN Error_Handler_Debug */
389 /* User can add his own implementation to report the HAL error return state */
390
391 /* USER CODE END Error_Handler_Debug */
392 }
393
394 #ifdef USE_FULL_ASSERT
395 /**
396 * @brief Reports the name of the source file and the source line number
397 * where the assert_param error has occurred.
398 * @param file: pointer to the source file name
399 * @param line: assert_param error line source number
400 * @retval None
401 */
assert_failed(uint8_t * file,uint32_t line)402 void assert_failed(uint8_t *file, uint32_t line)
403 {
404 /* USER CODE BEGIN 6 */
405 /* User can add his own implementation to report the file name and line number,
406 tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
407 /* USER CODE END 6 */
408 }
409 #endif /* USE_FULL_ASSERT */
410
411 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
412