can_process.c 18 KB

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  1. #include "can_process.h"
  2. #include "uart_process.h"
  3. #include "motor_control.h"
  4. #include "crc_cal.h"
  5. #include "var.h"
  6. #include "eeprom_24c02.h"
  7. #include "eeprom_flash.h"
  8. #include "tasks.h"
  9. /**********局部函数定义**********/
  10. uint8_t cd_ReadChar(CAN_Buf_TypeDef * ptCANRx, uint8_t ucNum)
  11. {
  12. uint8_t ucData;
  13. uint16_t i;
  14. i = ucNum;
  15. if ((*ptCANRx).ucBufCnt >= ucNum)
  16. {
  17. i += (*ptCANRx).ucBufRdInde;
  18. if (i >= (*ptCANRx).ucBufSize)
  19. {
  20. i -=((*ptCANRx).ucBufSize);
  21. }
  22. }
  23. else
  24. {
  25. i=0;
  26. }
  27. ucData = *((*ptCANRx).pcBufAddr + i);
  28. return ucData;
  29. }
  30. void cd_DelChar(CAN_Buf_TypeDef * ptCANRx, uint8_t ucNum)
  31. {
  32. uint16_t i;
  33. if ((*ptCANRx).ucBufCnt >= ucNum)
  34. {
  35. __HAL_CAN_DISABLE_IT(&hcan, CAN_IT_FMP0);//关接收中断
  36. (*ptCANRx).ucBufCnt -= ucNum;
  37. __HAL_CAN_ENABLE_IT(&hcan, CAN_IT_FMP0);//开接收中断
  38. i = ucNum;
  39. i += (*ptCANRx).ucBufRdInde;
  40. if (i >= (*ptCANRx).ucBufSize)
  41. {
  42. i -= (*ptCANRx).ucBufSize;
  43. }
  44. (*ptCANRx).ucBufRdInde = i;
  45. }
  46. else
  47. {
  48. __HAL_CAN_DISABLE_IT(&hcan, CAN_IT_FMP0);//关接收中断
  49. i = (*ptCANRx).ucBufCnt;
  50. (*ptCANRx).ucBufCnt = 0;
  51. __HAL_CAN_ENABLE_IT(&hcan, CAN_IT_FMP0);//开接收中断
  52. i += (*ptCANRx).ucBufRdInde;
  53. if (i >= (*ptCANRx).ucBufSize)
  54. {
  55. i -= (*ptCANRx).ucBufSize;
  56. }
  57. (*ptCANRx).ucBufRdInde = i;
  58. }
  59. }
  60. //数据解析处理
  61. void DataProcess(uint16_t ID, uint8_t Mode, uint16_t Cmd, uint8_t* Data)
  62. {
  63. uint8_t DataLength;
  64. DataLength = (uint8_t)(Cmd &0x00FF);
  65. switch(ID)
  66. {
  67. //处理BMS发送的指令
  68. case ID_BMS_BC: case ID_BMS_TO_PBU:
  69. {
  70. switch(Cmd)
  71. {
  72. //BMS广播的指令
  73. case 0x1010://BMS运行信息
  74. {
  75. memcpy(&BMS_RunInfo.Voltage, Data, DataLength);
  76. break;
  77. }
  78. case 0x1308://关机指令
  79. {
  80. PowerOff_Process();
  81. break;
  82. }
  83. case 0x1410://电池设计信息
  84. {
  85. memcpy(&BMS_DesignInfo.Capacity, Data, DataLength);
  86. break;
  87. }
  88. case 0x160C://电池物理ID
  89. {
  90. memcpy(BMS_CheckInfo.MAC_ID, Data, DataLength);
  91. break;
  92. }
  93. case 0x170C://电池存储的校验码
  94. {
  95. memcpy(BMS_CheckInfo.CheckCode, Data, DataLength);
  96. break;
  97. }
  98. //BMS发送给MC的指令
  99. case 0x3005://电池在线检测反馈
  100. {
  101. if(strncmp("READY", (char*)Data, DataLength) == 0)
  102. {
  103. DeviceOnLine_Status.Status_Bit.BMS_OffLine = 0;
  104. }
  105. break;
  106. }
  107. default:break;
  108. }
  109. break;
  110. }
  111. //处理PBU发送的指令
  112. case ID_PBU_BC: case ID_PBU_TO_MC:
  113. {
  114. //PBU通信正常标志置位
  115. IsComOK_PBU.IsOK_Flag = TRUE;
  116. IsComOK_PBU.OK_TrigTime = HAL_GetTick();
  117. switch(Cmd)
  118. {
  119. //PBU广播的指令
  120. case 0x1008://PBU关机指令
  121. {
  122. PowerOff_Process();
  123. break;
  124. }
  125. case 0x120C://PBU物理ID
  126. {
  127. memcpy(PBU_CheckInfo.MAC_ID, Data, DataLength);
  128. break;
  129. }
  130. case 0x130C://PBU存储的校验码
  131. {
  132. memcpy(PBU_CheckInfo.CheckCode, Data, DataLength);
  133. break;
  134. }
  135. //PBU发送给MC的指令
  136. case 0x3002://控制电机指令
  137. {
  138. memcpy(&MC_ControlCode.GearSt, Data, DataLength);
  139. Update_MC_ControlCode_Back();
  140. SendData(ID_MC_BC, MODE_REPORT, 0x1020, (uint8_t*)&MC_RunInfo.BikeSpeed);
  141. break;
  142. }
  143. case 0x3105://PBU在线检测反馈
  144. {
  145. if(strncmp("READY", (char*)Data, DataLength) == 0)
  146. {
  147. DeviceOnLine_Status.Status_Bit.PBU_OffLine = 0;
  148. }
  149. break;
  150. }
  151. case 0x3208://控制参数配置
  152. {
  153. memcpy(&PBU_ConfigParam.GearsNum, Data, DataLength);
  154. SendData(ID_MC_TO_PBU, MODE_REPORT, 0x5303, (uint8_t*)"ACK");
  155. break;
  156. }
  157. default:break;
  158. }
  159. break;
  160. }
  161. //处理HMI发送的指令
  162. case ID_HMI_BC: case ID_HMI_TO_PBU:
  163. {
  164. switch(Cmd)
  165. {
  166. //HMI广播的指令
  167. case 0x110C://HMI物理ID
  168. {
  169. memcpy(HMI_CheckInfo.MAC_ID, Data, DataLength);
  170. break;
  171. }
  172. case 0x120C://HMI存储的校验码
  173. {
  174. memcpy(HMI_CheckInfo.CheckCode, Data, DataLength);
  175. break;
  176. }
  177. //HMI发送MC的指令
  178. case 0x3000://查询电机版本信息
  179. {
  180. ReadDataFromEEPROM_Flash(EEPROM_FLASH_ADDR_MODE, (uint8_t*)MC_VerInfo.Mode, 16);
  181. ReadDataFromEEPROM_Flash(EEPROM_FLASH_ADDR_SN, (uint8_t*)MC_VerInfo.SN_Num, 16);
  182. SendData(ID_MC_BC, MODE_REPORT, 0x1240, (uint8_t*)MC_VerInfo.Mode);
  183. break;
  184. }
  185. case 0x3100://查询电机配置参数
  186. {
  187. GetParamFromEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_CONFIG_PARAM, sizeof(MC_ConfigParam), &MC_ConfigParam.RS1);
  188. Data[1] = MC_ConfigParam.StarModel;
  189. SendData(ID_MC_TO_HMI, MODE_REPORT, 0x7308, Data);
  190. break;
  191. }
  192. case 0x3208://设置电机配置参数
  193. {
  194. MC_ConfigParam.StarModel = (MC_StarMode_Struct_t)Data[1];
  195. SaveParamToEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_CONFIG_PARAM, sizeof(MC_ConfigParam), &MC_ConfigParam.RS1);
  196. SendData(ID_MC_TO_HMI, MODE_REPORT, 0x7403, (uint8_t*)"ACK");
  197. break;
  198. }
  199. case 0x3305://HMI在线检测反馈
  200. {
  201. if(strncmp("READY", (char*)Data, DataLength) == 0)
  202. {
  203. DeviceOnLine_Status.Status_Bit.HMI_OffLine = 0;
  204. }
  205. break;
  206. }
  207. default:break;
  208. }
  209. break;
  210. }
  211. //处理CDL发送的指令
  212. case ID_CDL_BC: case ID_CDL_TO_MC:
  213. {
  214. switch(Cmd)
  215. {
  216. case 0x1000://查询校验密钥
  217. {
  218. GetParamFromEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_SECRET_KEY, sizeof(Secret_Key), Secret_Key);
  219. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA408, Secret_Key);
  220. break;
  221. }
  222. case 0x1108://写入校验密钥
  223. {
  224. memcpy(Secret_Key, Data, DataLength);
  225. SaveParamToEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_SECRET_KEY, sizeof(Secret_Key), Secret_Key);
  226. SendData(ID_MC_BC, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  227. break;
  228. }
  229. case 0x1200://查询电机版本信息
  230. {
  231. ReadDataFromEEPROM_Flash(EEPROM_FLASH_ADDR_MODE, (uint8_t*)MC_VerInfo.Mode, 16);
  232. ReadDataFromEEPROM_Flash(EEPROM_FLASH_ADDR_SN, (uint8_t*)MC_VerInfo.SN_Num, 16);
  233. SendData(ID_MC_BC, MODE_REPORT, 0x1240, (uint8_t*)MC_VerInfo.Mode);
  234. break;
  235. }
  236. case 0x1300://查询自定义字符串1
  237. {
  238. ReadDataFromEEPROM_Flash(EEPROM_FLASH_ADDR_USER_INFO1, UserString1, 16);
  239. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA610, UserString1);
  240. break;
  241. }
  242. case 0x1410://写入自定义字符串1
  243. {
  244. memcpy(UserString1, Data, DataLength);
  245. EEPROM_Flash_DataUpdate();
  246. SendData(ID_MC_BC, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  247. break;
  248. }
  249. case 0x1500://查询自定义字符串2
  250. {
  251. ReadDataFromEEPROM_Flash(EEPROM_FLASH_ADDR_USER_INFO2, UserString2, 16);
  252. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA710, UserString2);
  253. break;
  254. }
  255. case 0x1610://写入自定义字符串2
  256. {
  257. memcpy(UserString2, Data, DataLength);
  258. EEPROM_Flash_DataUpdate();
  259. SendData(ID_MC_BC, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  260. break;
  261. }
  262. case 0x1700://查询自定义字符串3
  263. {
  264. ReadDataFromEEPROM_Flash(EEPROM_FLASH_ADDR_USER_INFO3, UserString3, 16);
  265. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA810, UserString3);
  266. break;
  267. }
  268. case 0x1810://写入自定义字符串3
  269. {
  270. memcpy(UserString3, Data, DataLength);
  271. EEPROM_Flash_DataUpdate();
  272. SendData(ID_MC_BC, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  273. break;
  274. }
  275. case 0x1901://写入电机工作模式
  276. {
  277. MC_WorkMode = (MC_WorkMode_Struct_t)*Data;
  278. MC_WorkMode_Back = (MC_WorkMode_Struct_t)~MC_WorkMode;
  279. break;
  280. }
  281. case 0x1A00://查询电机控制参数
  282. {
  283. GetParamFromEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_CONFIG_PARAM, sizeof(MC_ConfigParam), &MC_ConfigParam.RS1);
  284. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA020, &MC_ConfigParam.RS1);
  285. break;
  286. }
  287. case 0x1B20://写入电机控制参数
  288. {
  289. memcpy(&MC_ConfigParam.RS1, Data, DataLength);
  290. SaveParamToEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_CONFIG_PARAM, sizeof(MC_ConfigParam), &MC_ConfigParam.RS1);
  291. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  292. break;
  293. }
  294. case 0x1C00://查询马达参数
  295. {
  296. GetParamFromEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_MOTOR_PARAM, sizeof(MC_MotorParam), (uint8_t*)&MC_MotorParam.Rate_Power);
  297. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA110, (uint8_t*)&MC_MotorParam.Rate_Power);
  298. break;
  299. }
  300. case 0x1D10://写入马达参数
  301. {
  302. memcpy((uint8_t*)&MC_MotorParam.Rate_Power, Data, DataLength);
  303. SaveParamToEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_MOTOR_PARAM, sizeof(MC_MotorParam), (uint8_t*)&MC_MotorParam.Rate_Power);
  304. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  305. break;
  306. }
  307. case 0x1E00://查询电机历史信息
  308. {
  309. GetParamFromEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_RUN_LOG, sizeof(MC_RunLog), (uint8_t*)&MC_RunLog.PowerOnCnt);
  310. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA230, (uint8_t*)&MC_RunLog.PowerOnCnt);
  311. break;
  312. }
  313. case 0x1F00://查询电机生产信息
  314. {
  315. ReadDataFromEEPROM_Flash(EEPROM_FLASH_ADDR_MAC_INFO, (uint8_t*)MC_MacInfo.Manufacturer, 32);
  316. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA520, (uint8_t*)MC_MacInfo.Manufacturer);
  317. break;
  318. }
  319. case 0x2000://查询力矩传感器零偏数据
  320. {
  321. GetParamFromEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_TORQUE_OFFSET, sizeof(TorqueOffSetData), (uint8_t*)TorqueOffSetData.Data);
  322. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA318, (uint8_t*)TorqueOffSetData.Data);
  323. break;
  324. }
  325. case 0x2100://查询设备在线结果
  326. {
  327. SendData(ID_MC_BC, MODE_REPORT, 0x1401, &DeviceOnLine_Status.Status);
  328. break;
  329. }
  330. case 0x2210://写入电机Mode
  331. {
  332. memcpy(MC_VerInfo.Mode, Data, DataLength);
  333. EEPROM_Flash_DataUpdate();
  334. SendData(ID_MC_BC, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  335. break;
  336. }
  337. case 0x2310://写入电机SN
  338. {
  339. memcpy(MC_VerInfo.SN_Num, Data, DataLength);
  340. EEPROM_Flash_DataUpdate();
  341. SendData(ID_MC_BC, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  342. break;
  343. }
  344. case 0x2420://写入电机生产信息
  345. {
  346. memcpy(MC_MacInfo.Manufacturer, Data, DataLength);
  347. EEPROM_Flash_DataUpdate();
  348. SendData(ID_MC_BC, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  349. break;
  350. }
  351. case 0x2505://复位指令
  352. {
  353. if(strncmp("RESET", (char*)Data, DataLength) == 0)
  354. {
  355. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  356. SendCmdData(&UART_TxBuff_Struct3, MODE_WRITE, 0x1205, (uint8_t*)"RESET");
  357. HAL_Delay(200);
  358. __set_FAULTMASK(1);//关闭所有中断
  359. HAL_NVIC_SystemReset();
  360. }
  361. break;
  362. }
  363. case 0x2605://数据清除
  364. {
  365. if(strncmp("CLEAR", (char*)Data, DataLength) == 0)
  366. {
  367. EEPROM_24C02_ClearData(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_FLAG, EEPROM_24C02_ADDR_END, 0xFF);
  368. EEPROM_Flash_Erase();
  369. }
  370. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  371. SendCmdData(&UART_TxBuff_Struct3, MODE_WRITE, 0x1205, (uint8_t*)"RESET");
  372. __set_FAULTMASK(1);//关闭所有中断
  373. HAL_NVIC_SystemReset();
  374. break;
  375. }
  376. case 0x2708://系统还原
  377. {
  378. if(strncmp("RECOVERY", (char*)Data, DataLength) == 0)
  379. {
  380. }
  381. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  382. SendCmdData(&UART_TxBuff_Struct3, MODE_WRITE, 0x1205, (uint8_t*)"RESET");
  383. __set_FAULTMASK(1);//关闭所有中断
  384. HAL_NVIC_SystemReset();
  385. break;
  386. }
  387. case 0x2802://控制指令
  388. {
  389. memcpy(&MC_ControlCode.GearSt, Data, DataLength);
  390. Update_MC_ControlCode_Back();
  391. SendData(ID_MC_BC, MODE_REPORT, 0x1020, (uint8_t*)&MC_RunInfo.BikeSpeed);
  392. break;
  393. }
  394. case 0x2900://查询力矩传感器校正信息
  395. {
  396. SendData(ID_MC_TO_CDL, MODE_REPORT, 0xAA04, (uint8_t*)&MC_TorqueCorrectParam.StarData);
  397. break;
  398. }
  399. case 0x2A01://写入力矩传感器标定系数
  400. {
  401. memcpy((uint8_t*)&MC_TorqueCorrectParam.K, Data, DataLength);
  402. SaveParamToEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_TORQUE_PARAM, sizeof(MC_TorqueCorrectParam_Struct_t), (uint8_t*)&MC_TorqueCorrectParam.StarData);
  403. SendData(ID_MC_BC, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  404. break;
  405. }
  406. case 0x2B02://写入力矩传感器启动值
  407. {
  408. memcpy((uint8_t*)&MC_TorqueCorrectParam.StarData, Data, DataLength);
  409. SaveParamToEEprom_24C02(&I2C_Handle_EEPROM, EEPROM_24C02_ADDR_TORQUE_PARAM, sizeof(MC_TorqueCorrectParam_Struct_t), (uint8_t*)&MC_TorqueCorrectParam.StarData);
  410. SendData(ID_MC_BC, MODE_REPORT, 0xA903, (uint8_t*)"ACK");
  411. break;
  412. }
  413. case 0x2C01://设置推行模式最高转速百分比
  414. {
  415. MC_WalkMode_Persent = Data[0];
  416. break;
  417. }
  418. default:break;
  419. }
  420. break;
  421. }
  422. default:break;
  423. }
  424. }
  425. /*********************End*******************/
  426. /************全局函数定义*******************/
  427. //CAN数据解析,严格按照协议格式
  428. void CAN_RxData_Process(CAN_Buf_TypeDef* ptCANRx, uint16_t TimeOutCnt)
  429. {
  430. uint8_t Mode, CmdLength, DataLength, Data[64], CRC_Buf[78];
  431. uint16_t Cmd, i;
  432. uint32_t CrcResult, CrcData;
  433. uint8_t FrameBegin1, FrameBegin2;
  434. if(ptCANRx->ucBufCnt >= 11)
  435. {
  436. //读取帧头
  437. FrameBegin1 = cd_ReadChar(ptCANRx, 0);
  438. CRC_Buf[0] = FrameBegin1;
  439. FrameBegin2 = cd_ReadChar(ptCANRx, 1);
  440. CRC_Buf[1] = FrameBegin2;
  441. if((FrameBegin1 == FRAME_BEGIN1) && (FrameBegin2 == FRAME_BEGIN2))
  442. {
  443. CRC_Buf[2] = (uint8_t)((ptCANRx->ucBufID >> 8) & 0xFF);
  444. CRC_Buf[3] = (uint8_t)(ptCANRx->ucBufID & 0xFF);
  445. //读取帧模式
  446. Mode = cd_ReadChar(ptCANRx, 2);
  447. CRC_Buf[4] = Mode;
  448. if((Mode == MODE_READ) || (Mode == MODE_WRITE) || (Mode == MODE_REPORT))
  449. {
  450. //读取命令段长度和命令字
  451. CmdLength = cd_ReadChar(ptCANRx, 3);
  452. CRC_Buf[5] = CmdLength;
  453. Cmd = (cd_ReadChar(ptCANRx, 4) << 8) + cd_ReadChar(ptCANRx, 5);
  454. CRC_Buf[6] = (uint8_t)((Cmd >> 8) & 0xFF);
  455. CRC_Buf[7] = (uint8_t)(Cmd & 0xFF);
  456. DataLength = cd_ReadChar(ptCANRx, 5);
  457. if((CmdLength - DataLength) == 2)
  458. {
  459. if(ptCANRx->ucBufCnt < (CmdLength + 9))//帧头2bytes + 模式1byte + 命令段长度1byte + 校验位4bytes + 帧尾1byte
  460. {
  461. if(ptCANRx->IsWaitRX_Flag == FALSE)
  462. {
  463. ptCANRx->DelayTimeCnt = HAL_GetTick();
  464. ptCANRx->IsWaitRX_Flag = TRUE;
  465. }
  466. if((HAL_GetTick() - ptCANRx->DelayTimeCnt) > TimeOutCnt)//超时,单位ms
  467. {
  468. cd_DelChar(ptCANRx, ptCANRx->ucBufCnt);
  469. ptCANRx->IsWaitRX_Flag = FALSE;
  470. }
  471. return;
  472. }
  473. else
  474. {
  475. ptCANRx->IsWaitRX_Flag = FALSE;
  476. //接收到完整正确数据包
  477. for(i=0; i<DataLength; i++)//读取数据段
  478. {
  479. Data[i] = cd_ReadChar(ptCANRx, 6 + i);
  480. CRC_Buf[8 + i] = Data[i];
  481. }
  482. CrcData = (cd_ReadChar(ptCANRx, 6 + DataLength) << 24) + \
  483. (cd_ReadChar(ptCANRx, 7 + DataLength) << 16) + \
  484. (cd_ReadChar(ptCANRx, 8 + DataLength) << 8) + \
  485. cd_ReadChar(ptCANRx, 9 + DataLength);
  486. CrcResult = CRC32_Calculate(CRC_Buf, 8 + DataLength);
  487. if((CrcData - CrcResult) == 0) // 比较校验
  488. {
  489. //数据处理
  490. DataProcess(ptCANRx->ucBufID, Mode, Cmd, Data);//Mode为帧模式,Cmd为命令字,Data为数据段
  491. cd_DelChar(ptCANRx, CmdLength + 9);
  492. return;
  493. }
  494. cd_DelChar(ptCANRx, 1);
  495. }
  496. }
  497. else
  498. {
  499. cd_DelChar(ptCANRx, 1);
  500. }
  501. }
  502. else
  503. {
  504. cd_DelChar(ptCANRx, 1);
  505. }
  506. }
  507. else
  508. {
  509. cd_DelChar(ptCANRx, 1);
  510. }
  511. }
  512. }
  513. #if 1
  514. //数据解析,忽略命令字表示的数据长度
  515. void CAN_RxData_Process_Temp(CAN_Buf_TypeDef* ptCANRx, uint16_t TimeOutCnt)
  516. {
  517. uint8_t Mode, CmdLength, DataLength, Data[64], CRC_Buf[78];
  518. uint16_t Cmd, i;
  519. uint32_t CrcResult, CrcData;
  520. uint8_t FrameBegin1, FrameBegin2;
  521. if(ptCANRx->ucBufCnt >= 11)
  522. {
  523. //读取帧头
  524. FrameBegin1 = cd_ReadChar(ptCANRx, 0);
  525. CRC_Buf[0] = FrameBegin1;
  526. FrameBegin2 = cd_ReadChar(ptCANRx, 1);
  527. CRC_Buf[1] = FrameBegin2;
  528. if((FrameBegin1 == FRAME_BEGIN1) && (FrameBegin2 == FRAME_BEGIN2))
  529. {
  530. CRC_Buf[2] = (uint8_t)((ptCANRx->ucBufID >> 8) & 0xFF);
  531. CRC_Buf[3] = (uint8_t)(ptCANRx->ucBufID & 0xFF);
  532. //读取帧模式
  533. Mode = cd_ReadChar(ptCANRx, 2);
  534. CRC_Buf[4] = Mode;
  535. if((Mode == MODE_READ) || (Mode == MODE_WRITE) || (Mode == MODE_REPORT))
  536. {
  537. //读取命令段长度和命令字
  538. CmdLength = cd_ReadChar(ptCANRx, 3);
  539. CRC_Buf[5] = CmdLength;
  540. Cmd = (cd_ReadChar(ptCANRx, 4) << 8) + cd_ReadChar(ptCANRx, 5);
  541. CRC_Buf[6] = (uint8_t)((Cmd >> 8) & 0xFF);
  542. CRC_Buf[7] = (uint8_t)(Cmd & 0xFF);
  543. DataLength = CmdLength - 2;
  544. if(ptCANRx->ucBufCnt < (CmdLength + 9))//帧头2bytes + 模式1byte + 命令段长度1byte + 校验位4bytes + 帧尾1byte
  545. {
  546. if(ptCANRx->IsWaitRX_Flag == FALSE)
  547. {
  548. ptCANRx->DelayTimeCnt = HAL_GetTick();
  549. ptCANRx->IsWaitRX_Flag = TRUE;
  550. }
  551. if((HAL_GetTick() - ptCANRx->DelayTimeCnt) > TimeOutCnt)//超时,单位ms
  552. {
  553. cd_DelChar(ptCANRx, ptCANRx->ucBufCnt);
  554. ptCANRx->IsWaitRX_Flag = FALSE;
  555. }
  556. return;
  557. }
  558. else
  559. {
  560. ptCANRx->IsWaitRX_Flag = FALSE;
  561. //接收到完整正确数据包
  562. for(i=0; i<DataLength; i++)//读取数据段
  563. {
  564. Data[i] = cd_ReadChar(ptCANRx, 6 + i);
  565. CRC_Buf[8 + i] = Data[i];
  566. }
  567. CrcData = (cd_ReadChar(ptCANRx, 6 + DataLength) << 24) + \
  568. (cd_ReadChar(ptCANRx, 7 + DataLength) << 16) + \
  569. (cd_ReadChar(ptCANRx, 8 + DataLength) << 8) + \
  570. cd_ReadChar(ptCANRx, 9 + DataLength);
  571. CrcResult = CRC32_Calculate(CRC_Buf, 8 + DataLength);
  572. if((CrcData - CrcResult) == 0) // 比较校验
  573. {
  574. //数据处理
  575. DataProcess(ptCANRx->ucBufID, Mode, Cmd, Data);//Mode为帧模式,Cmd为命令字,Data为数据段
  576. cd_DelChar(ptCANRx, CmdLength + 9);
  577. return;
  578. }
  579. cd_DelChar(ptCANRx, 1);
  580. }
  581. }
  582. else
  583. {
  584. cd_DelChar(ptCANRx, 1);
  585. }
  586. }
  587. else
  588. {
  589. cd_DelChar(ptCANRx, 1);
  590. }
  591. }
  592. }
  593. #endif
  594. void SendData(uint16_t ID, uint8_t Mode, uint16_t Command, uint8_t* Data)
  595. {
  596. uint8_t SendBuf[96] = {0};
  597. uint8_t CRC_Buf[98] = {0};
  598. uint32_t CRC_Result = 0x00000000;
  599. uint8_t DataLength;
  600. DataLength = (uint8_t)(Command & 0xFF);
  601. SendBuf[0] = FRAME_BEGIN1;
  602. SendBuf[1] = FRAME_BEGIN2;
  603. SendBuf[2] = Mode;
  604. SendBuf[3] = DataLength + 2;
  605. SendBuf[4] = (uint8_t)((Command >> 8) & 0xFF);
  606. SendBuf[5] = DataLength;
  607. memcpy(SendBuf + 6, Data, DataLength);
  608. CRC_Buf[0] = FRAME_BEGIN1;
  609. CRC_Buf[1] = FRAME_BEGIN2;
  610. CRC_Buf[2] = (uint8_t)(ID >> 8);
  611. CRC_Buf[3] = (uint8_t)(ID & 0xFF);
  612. memcpy(CRC_Buf + 4, SendBuf + 2, DataLength + 4);
  613. CRC_Result = CRC32_Calculate(CRC_Buf, DataLength + 8);//帧头 2bytes + ID 2bytes + 模式 1byte + 命令段长度 1byte + 命令字 2bytes
  614. SendBuf[6 + DataLength] = (uint8_t)((CRC_Result >> 24) & 0xFF);
  615. SendBuf[7 + DataLength] = (uint8_t)((CRC_Result >> 16) & 0xFF);
  616. SendBuf[8 + DataLength] = (uint8_t)((CRC_Result >> 8) & 0xFF);
  617. SendBuf[9 + DataLength] = (uint8_t)(CRC_Result & 0xFF);
  618. SendBuf[10 + DataLength] = FRAME_END;
  619. CAN_SendData(ID, SendBuf, DataLength + 11);
  620. }
  621. /********************End********************/