usart.c 13 KB

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  1. /* USER CODE BEGIN Header */
  2. /**
  3. ******************************************************************************
  4. * @file usart.c
  5. * @brief This file provides code for the configuration
  6. * of the USART instances.
  7. ******************************************************************************
  8. * @attention
  9. *
  10. * Copyright (c) 2024 STMicroelectronics.
  11. * All rights reserved.
  12. *
  13. * This software is licensed under terms that can be found in the LICENSE file
  14. * in the root directory of this software component.
  15. * If no LICENSE file comes with this software, it is provided AS-IS.
  16. *
  17. ******************************************************************************
  18. */
  19. /* USER CODE END Header */
  20. /* Includes ------------------------------------------------------------------*/
  21. #include "usart.h"
  22. /* USER CODE BEGIN 0 */
  23. /* USER CODE END 0 */
  24. UART_HandleTypeDef huart1;
  25. UART_HandleTypeDef huart2;
  26. UART_HandleTypeDef huart3;
  27. DMA_HandleTypeDef hdma_usart1_rx;
  28. DMA_HandleTypeDef hdma_usart1_tx;
  29. DMA_HandleTypeDef hdma_usart2_rx;
  30. DMA_HandleTypeDef hdma_usart2_tx;
  31. DMA_HandleTypeDef hdma_usart3_rx;
  32. DMA_HandleTypeDef hdma_usart3_tx;
  33. /* USART1 init function */
  34. void MX_USART1_UART_Init(void)
  35. {
  36. /* USER CODE BEGIN USART1_Init 0 */
  37. /* USER CODE END USART1_Init 0 */
  38. /* USER CODE BEGIN USART1_Init 1 */
  39. /* USER CODE END USART1_Init 1 */
  40. huart1.Instance = USART1;
  41. huart1.Init.BaudRate = 115200;
  42. huart1.Init.WordLength = UART_WORDLENGTH_8B;
  43. huart1.Init.StopBits = UART_STOPBITS_1;
  44. huart1.Init.Parity = UART_PARITY_NONE;
  45. huart1.Init.Mode = UART_MODE_TX_RX;
  46. huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  47. huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  48. huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  49. huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  50. if (HAL_UART_Init(&huart1) != HAL_OK)
  51. {
  52. Error_Handler();
  53. }
  54. /* USER CODE BEGIN USART1_Init 2 */
  55. /* USER CODE END USART1_Init 2 */
  56. }
  57. /* USART2 init function */
  58. void MX_USART2_UART_Init(void)
  59. {
  60. /* USER CODE BEGIN USART2_Init 0 */
  61. /* USER CODE END USART2_Init 0 */
  62. /* USER CODE BEGIN USART2_Init 1 */
  63. /* USER CODE END USART2_Init 1 */
  64. huart2.Instance = USART2;
  65. huart2.Init.BaudRate = 9600;
  66. huart2.Init.WordLength = UART_WORDLENGTH_8B;
  67. huart2.Init.StopBits = UART_STOPBITS_1;
  68. huart2.Init.Parity = UART_PARITY_NONE;
  69. huart2.Init.Mode = UART_MODE_TX_RX;
  70. huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  71. huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  72. huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  73. huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  74. if (HAL_UART_Init(&huart2) != HAL_OK)
  75. {
  76. Error_Handler();
  77. }
  78. /* USER CODE BEGIN USART2_Init 2 */
  79. /* USER CODE END USART2_Init 2 */
  80. }
  81. /* USART3 init function */
  82. void MX_USART3_UART_Init(void)
  83. {
  84. /* USER CODE BEGIN USART3_Init 0 */
  85. /* USER CODE END USART3_Init 0 */
  86. /* USER CODE BEGIN USART3_Init 1 */
  87. /* USER CODE END USART3_Init 1 */
  88. huart3.Instance = USART3;
  89. huart3.Init.BaudRate = 115200;
  90. huart3.Init.WordLength = UART_WORDLENGTH_8B;
  91. huart3.Init.StopBits = UART_STOPBITS_1;
  92. huart3.Init.Parity = UART_PARITY_NONE;
  93. huart3.Init.Mode = UART_MODE_TX_RX;
  94. huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  95. huart3.Init.OverSampling = UART_OVERSAMPLING_16;
  96. huart3.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  97. huart3.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  98. if (HAL_UART_Init(&huart3) != HAL_OK)
  99. {
  100. Error_Handler();
  101. }
  102. /* USER CODE BEGIN USART3_Init 2 */
  103. /* USER CODE END USART3_Init 2 */
  104. }
  105. void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
  106. {
  107. GPIO_InitTypeDef GPIO_InitStruct = {0};
  108. RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
  109. if(uartHandle->Instance==USART1)
  110. {
  111. /* USER CODE BEGIN USART1_MspInit 0 */
  112. /* USER CODE END USART1_MspInit 0 */
  113. /** Initializes the peripherals clock
  114. */
  115. PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
  116. PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
  117. if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  118. {
  119. Error_Handler();
  120. }
  121. /* USART1 clock enable */
  122. __HAL_RCC_USART1_CLK_ENABLE();
  123. __HAL_RCC_GPIOA_CLK_ENABLE();
  124. /**USART1 GPIO Configuration
  125. PA9 ------> USART1_TX
  126. PA10 ------> USART1_RX
  127. */
  128. GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
  129. GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  130. GPIO_InitStruct.Pull = GPIO_NOPULL;
  131. GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  132. GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
  133. HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  134. /* USART1 DMA Init */
  135. /* USART1_RX Init */
  136. hdma_usart1_rx.Instance = DMA1_Channel5;
  137. hdma_usart1_rx.Init.Request = DMA_REQUEST_2;
  138. hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
  139. hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
  140. hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
  141. hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  142. hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
  143. hdma_usart1_rx.Init.Mode = DMA_NORMAL;
  144. hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW;
  145. if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
  146. {
  147. Error_Handler();
  148. }
  149. __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart1_rx);
  150. /* USART1_TX Init */
  151. hdma_usart1_tx.Instance = DMA1_Channel4;
  152. hdma_usart1_tx.Init.Request = DMA_REQUEST_2;
  153. hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
  154. hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
  155. hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
  156. hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  157. hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
  158. hdma_usart1_tx.Init.Mode = DMA_NORMAL;
  159. hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
  160. if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
  161. {
  162. Error_Handler();
  163. }
  164. __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart1_tx);
  165. /* USART1 interrupt Init */
  166. HAL_NVIC_SetPriority(USART1_IRQn, 6, 0);
  167. HAL_NVIC_EnableIRQ(USART1_IRQn);
  168. /* USER CODE BEGIN USART1_MspInit 1 */
  169. /* USER CODE END USART1_MspInit 1 */
  170. }
  171. else if(uartHandle->Instance==USART2)
  172. {
  173. /* USER CODE BEGIN USART2_MspInit 0 */
  174. /* USER CODE END USART2_MspInit 0 */
  175. /** Initializes the peripherals clock
  176. */
  177. PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
  178. PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
  179. if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  180. {
  181. Error_Handler();
  182. }
  183. /* USART2 clock enable */
  184. __HAL_RCC_USART2_CLK_ENABLE();
  185. __HAL_RCC_GPIOA_CLK_ENABLE();
  186. /**USART2 GPIO Configuration
  187. PA2 ------> USART2_TX
  188. PA3 ------> USART2_RX
  189. */
  190. GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
  191. GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  192. GPIO_InitStruct.Pull = GPIO_NOPULL;
  193. GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  194. GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
  195. HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  196. /* USART2 DMA Init */
  197. /* USART2_RX Init */
  198. hdma_usart2_rx.Instance = DMA1_Channel6;
  199. hdma_usart2_rx.Init.Request = DMA_REQUEST_2;
  200. hdma_usart2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
  201. hdma_usart2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
  202. hdma_usart2_rx.Init.MemInc = DMA_MINC_ENABLE;
  203. hdma_usart2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  204. hdma_usart2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
  205. hdma_usart2_rx.Init.Mode = DMA_NORMAL;
  206. hdma_usart2_rx.Init.Priority = DMA_PRIORITY_LOW;
  207. if (HAL_DMA_Init(&hdma_usart2_rx) != HAL_OK)
  208. {
  209. Error_Handler();
  210. }
  211. __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart2_rx);
  212. /* USART2_TX Init */
  213. hdma_usart2_tx.Instance = DMA1_Channel7;
  214. hdma_usart2_tx.Init.Request = DMA_REQUEST_2;
  215. hdma_usart2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
  216. hdma_usart2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
  217. hdma_usart2_tx.Init.MemInc = DMA_MINC_ENABLE;
  218. hdma_usart2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  219. hdma_usart2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
  220. hdma_usart2_tx.Init.Mode = DMA_NORMAL;
  221. hdma_usart2_tx.Init.Priority = DMA_PRIORITY_LOW;
  222. if (HAL_DMA_Init(&hdma_usart2_tx) != HAL_OK)
  223. {
  224. Error_Handler();
  225. }
  226. __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart2_tx);
  227. /* USART2 interrupt Init */
  228. HAL_NVIC_SetPriority(USART2_IRQn, 5, 0);
  229. HAL_NVIC_EnableIRQ(USART2_IRQn);
  230. /* USER CODE BEGIN USART2_MspInit 1 */
  231. /* USER CODE END USART2_MspInit 1 */
  232. }
  233. else if(uartHandle->Instance==USART3)
  234. {
  235. /* USER CODE BEGIN USART3_MspInit 0 */
  236. /* USER CODE END USART3_MspInit 0 */
  237. /** Initializes the peripherals clock
  238. */
  239. PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART3;
  240. PeriphClkInit.Usart3ClockSelection = RCC_USART3CLKSOURCE_PCLK1;
  241. if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  242. {
  243. Error_Handler();
  244. }
  245. /* USART3 clock enable */
  246. __HAL_RCC_USART3_CLK_ENABLE();
  247. __HAL_RCC_GPIOB_CLK_ENABLE();
  248. /**USART3 GPIO Configuration
  249. PB10 ------> USART3_TX
  250. PB11 ------> USART3_RX
  251. */
  252. GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11;
  253. GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  254. GPIO_InitStruct.Pull = GPIO_NOPULL;
  255. GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
  256. GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
  257. HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  258. /* USART3 DMA Init */
  259. /* USART3_RX Init */
  260. hdma_usart3_rx.Instance = DMA1_Channel3;
  261. hdma_usart3_rx.Init.Request = DMA_REQUEST_2;
  262. hdma_usart3_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
  263. hdma_usart3_rx.Init.PeriphInc = DMA_PINC_DISABLE;
  264. hdma_usart3_rx.Init.MemInc = DMA_MINC_ENABLE;
  265. hdma_usart3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  266. hdma_usart3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
  267. hdma_usart3_rx.Init.Mode = DMA_CIRCULAR;
  268. hdma_usart3_rx.Init.Priority = DMA_PRIORITY_LOW;
  269. if (HAL_DMA_Init(&hdma_usart3_rx) != HAL_OK)
  270. {
  271. Error_Handler();
  272. }
  273. __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart3_rx);
  274. /* USART3_TX Init */
  275. hdma_usart3_tx.Instance = DMA1_Channel2;
  276. hdma_usart3_tx.Init.Request = DMA_REQUEST_2;
  277. hdma_usart3_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
  278. hdma_usart3_tx.Init.PeriphInc = DMA_PINC_DISABLE;
  279. hdma_usart3_tx.Init.MemInc = DMA_MINC_ENABLE;
  280. hdma_usart3_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  281. hdma_usart3_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
  282. hdma_usart3_tx.Init.Mode = DMA_NORMAL;
  283. hdma_usart3_tx.Init.Priority = DMA_PRIORITY_LOW;
  284. if (HAL_DMA_Init(&hdma_usart3_tx) != HAL_OK)
  285. {
  286. Error_Handler();
  287. }
  288. __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart3_tx);
  289. /* USART3 interrupt Init */
  290. HAL_NVIC_SetPriority(USART3_IRQn, 6, 0);
  291. HAL_NVIC_EnableIRQ(USART3_IRQn);
  292. /* USER CODE BEGIN USART3_MspInit 1 */
  293. /* USER CODE END USART3_MspInit 1 */
  294. }
  295. }
  296. void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
  297. {
  298. if(uartHandle->Instance==USART1)
  299. {
  300. /* USER CODE BEGIN USART1_MspDeInit 0 */
  301. /* USER CODE END USART1_MspDeInit 0 */
  302. /* Peripheral clock disable */
  303. __HAL_RCC_USART1_CLK_DISABLE();
  304. /**USART1 GPIO Configuration
  305. PA9 ------> USART1_TX
  306. PA10 ------> USART1_RX
  307. */
  308. HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
  309. /* USART1 DMA DeInit */
  310. HAL_DMA_DeInit(uartHandle->hdmarx);
  311. HAL_DMA_DeInit(uartHandle->hdmatx);
  312. /* USART1 interrupt Deinit */
  313. HAL_NVIC_DisableIRQ(USART1_IRQn);
  314. /* USER CODE BEGIN USART1_MspDeInit 1 */
  315. /* USER CODE END USART1_MspDeInit 1 */
  316. }
  317. else if(uartHandle->Instance==USART2)
  318. {
  319. /* USER CODE BEGIN USART2_MspDeInit 0 */
  320. /* USER CODE END USART2_MspDeInit 0 */
  321. /* Peripheral clock disable */
  322. __HAL_RCC_USART2_CLK_DISABLE();
  323. /**USART2 GPIO Configuration
  324. PA2 ------> USART2_TX
  325. PA3 ------> USART2_RX
  326. */
  327. HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3);
  328. /* USART2 DMA DeInit */
  329. HAL_DMA_DeInit(uartHandle->hdmarx);
  330. HAL_DMA_DeInit(uartHandle->hdmatx);
  331. /* USART2 interrupt Deinit */
  332. HAL_NVIC_DisableIRQ(USART2_IRQn);
  333. /* USER CODE BEGIN USART2_MspDeInit 1 */
  334. /* USER CODE END USART2_MspDeInit 1 */
  335. }
  336. else if(uartHandle->Instance==USART3)
  337. {
  338. /* USER CODE BEGIN USART3_MspDeInit 0 */
  339. /* USER CODE END USART3_MspDeInit 0 */
  340. /* Peripheral clock disable */
  341. __HAL_RCC_USART3_CLK_DISABLE();
  342. /**USART3 GPIO Configuration
  343. PB10 ------> USART3_TX
  344. PB11 ------> USART3_RX
  345. */
  346. HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10|GPIO_PIN_11);
  347. /* USART3 DMA DeInit */
  348. HAL_DMA_DeInit(uartHandle->hdmarx);
  349. HAL_DMA_DeInit(uartHandle->hdmatx);
  350. /* USART3 interrupt Deinit */
  351. HAL_NVIC_DisableIRQ(USART3_IRQn);
  352. /* USER CODE BEGIN USART3_MspDeInit 1 */
  353. /* USER CODE END USART3_MspDeInit 1 */
  354. }
  355. }
  356. /* USER CODE BEGIN 1 */
  357. #include <stdio.h>
  358. #ifdef __GNUC__
  359. #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
  360. #else
  361. #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
  362. #endif
  363. PUTCHAR_PROTOTYPE
  364. {
  365. HAL_UART_Transmit(&huart1 , (uint8_t *)&ch, 1, 0xFFFF);
  366. // HAL_UART_Transmit_DMA(&huart1 , (uint8_t *)&ch, 1);
  367. return ch;
  368. }
  369. /* USER CODE END 1 */