ASCLIN模块

AscLin 这个词意思是 UART+SPI+LIN，这是三种在汽车里常用的（相对 CAN 简单的通信接口）简单接口。由于有一些可以复用的电路，AURIX 把这三种接口做成了一个模块，可以通过配置选择。
Asynchronous/Synchronous Interface (ASCLIN)
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程序

  1. /*********************************************************************************************************************/
  2. /*-----------------------------------------------------Includes------------------------------------------------------*/
  3. /*********************************************************************************************************************/
  4. #include "IfxAsclin_Asc.h"
  5. #include "IfxCpu_Irq.h"
  6. #include "Ifx_Console.h"
  8. /*********************************************************************************************************************/
  9. /*------------------------------------------------------Macros-------------------------------------------------------*/
  10. /*********************************************************************************************************************/
  11. #define SERIAL_BAUDRATE         115200                                      /* Baud rate in bit/s                   */
  13. #define SERIAL_PIN_RX           IfxAsclin0_RXA_P14_1_IN                     /* RX pin of the board                  */
  14. #define SERIAL_PIN_TX           IfxAsclin0_TX_P14_0_OUT                     /* TX pin of the board                  */
  16. #define INTPRIO_ASCLIN0_TX      19                                          /* Priority of the ISR                  */
  17. #define INTPRIO_ASCLIN0_RX      14
  18. #define INTPRIO_ASCLIN0_ER      20
  20. #define ASC_TX_BUFFER_SIZE      64                                          /* Definition of the buffer size        */
  21. #define ASC_RX_BUFFER_SIZE      64
  23. /*********************************************************************************************************************/
  24. /*-------------------------------------------------Global variables--------------------------------------------------*/
  25. /*********************************************************************************************************************/
  26. static IfxStdIf_DPipe stdio;    //使用print必须加上
  27. IfxAsclin_Asc g_asc;                                                        /* Declaration of the ASC handle        */
  28. uint8 g_ascTxBuffer[ASC_TX_BUFFER_SIZE + sizeof(Ifx_Fifo) + 8];
  29. uint8 g_ascRxBuffer[ASC_RX_BUFFER_SIZE + sizeof(Ifx_Fifo) + 8];/* Declaration of the FIFOs parameters  */
  31. /*********************************************************************************************************************/
  32. /*---------------------------------------------Function Implementations----------------------------------------------*/
  33. /*********************************************************************************************************************/
  34. IFX_INTERRUPT(asclin0_Tx_ISR, 0, INTPRIO_ASCLIN0_TX);                       /* Adding the Interrupt Service Routine */
  36. void asclin0_Tx_ISR(void)
  37. {
  38.     IfxAsclin_Asc_isrTransmit(&g_asc);
  39. }
  41. void init_UART(void)
  42. {
  43.     /* Initialize an instance of IfxAsclin_Asc_Config with default values */
  44.     IfxAsclin_Asc_Config ascConfig;
  45.     IfxAsclin_Asc_initModuleConfig(&ascConfig, &MODULE_ASCLIN0);//同时配置发送接收
  46.     //IfxAsclin_Asc_initModuleConfig(&ascConfig, SERIAL_PIN_TX.module);//只配置了发送
  48.     /* Set the desired baud rate设置波特率 */
  49.     ascConfig.baudrate.baudrate = SERIAL_BAUDRATE;
  51.     /* ISR priorities and interrupt target */
  52.     ascConfig.interrupt.txPriority = INTPRIO_ASCLIN0_TX;
  53.     ascConfig.interrupt.rxPriority = INTPRIO_ASCLIN0_RX;//加上接收的
  54.     ascConfig.interrupt.erPriority = INTPRIO_ASCLIN0_ER;//错误
  55.     ascConfig.interrupt.typeOfService = IfxCpu_Irq_getTos(IfxCpu_getCoreIndex());//使能，使用哪个CPU
  57.     /* FIFO configuration缓冲区配置 */
  58.     ascConfig.txBuffer = &g_ascTxBuffer;
  59.     ascConfig.txBufferSize = ASC_TX_BUFFER_SIZE;
  60.     ascConfig.rxBuffer = &g_ascRxBuffer;
  61.     ascConfig.rxBufferSize = ASC_RX_BUFFER_SIZE;
  63.     /* Port pins configuration 管脚配置*/
  64.     const IfxAsclin_Asc_Pins pins =
  65.     {
  66.         NULL_PTR,         IfxPort_InputMode_pullUp,     /* CTS pin not used     */
  67.         &SERIAL_PIN_RX,   IfxPort_InputMode_pullUp,     /* RX pin not used      */
  68.         NULL_PTR,         IfxPort_OutputMode_pushPull,  /* RTS pin not used     */
  69.         &SERIAL_PIN_TX,   IfxPort_OutputMode_pushPull,  /* TX pin               */
  70.         IfxPort_PadDriver_cmosAutomotiveSpeed1
  71.     };
  72.     ascConfig.pins = &pins;
  73.     //初始化串口模块 -> 初始化标准输入输出流 -> 初始化标准控制台
  74.     IfxAsclin_Asc_initModule(&g_asc, &ascConfig);                       /* Initialize module with above parameters  */
  75.     IfxAsclin_Asc_stdIfDPipeInit(&stdio, &g_asc);       //使用print必须加上
  76.     Ifx_Console_init(&stdio);
  78. }
  80. void send_UART_message(void)
  81. {
  82.     uint8 txData[] = "Hello World!";                                    /* Message to send                          */
  83.     Ifx_SizeT count = 12;                                               /* Size of the message                      */
  84.     IfxAsclin_Asc_write(&g_asc, txData, &count, TIME_INFINITE);         /* Transfer of data                         */
  85. }
  1. #include "Ifx_Types.h"
  2. #include "IfxCpu.h"
  3. #include "IfxScuWdt.h"
  4. #include "UART_VCOM.h"
  5. #include "Ifx_Console.h"//print用
  6. #include "Bsp.h"//延时用得上
  8. IfxCpu_syncEvent g_cpuSyncEvent = 0;
  9. uint32 i = 0;
  11. int core0_main(void)
  12. {
  13.     IfxCpu_enableInterrupts();
  15.     /* !!WATCHDOG0 AND SAFETY WATCHDOG ARE DISABLED HERE!!
  16.      * Enable the watchdogs and service them periodically if it is required
  17.      */
  18.     IfxScuWdt_disableCpuWatchdog(IfxScuWdt_getCpuWatchdogPassword());
  19.     IfxScuWdt_disableSafetyWatchdog(IfxScuWdt_getSafetyWatchdogPassword());
  21.     /* Wait for CPU sync event */
  22.     IfxCpu_emitEvent(&g_cpuSyncEvent);
  23.     IfxCpu_waitEvent(&g_cpuSyncEvent, 1);
  25.     init_UART();            /* Initialize the module            */
  26.     send_UART_message();    /* Send the message "Hello World!"  */
  28.     while(1)
  29.     {
  30.         Ifx_Console_print("Hello, world!(%d)\n", i++);//尝试使用Ifx_Console_print的函数，类似于printf
  31.         waitTime(IfxStm_getTicksFromMilliseconds(BSP_DEFAULT_TIMER, 500));
  32.     }
  33.     return (1);
  34. }

测试结果

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