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)

程序

/*********************************************************************************************************************/
/*-----------------------------------------------------Includes------------------------------------------------------*/
/*********************************************************************************************************************/
#include "IfxAsclin_Asc.h"
#include "IfxCpu_Irq.h"
#include "Ifx_Console.h"

/*********************************************************************************************************************/
/*------------------------------------------------------Macros-------------------------------------------------------*/
/*********************************************************************************************************************/
#define SERIAL_BAUDRATE         115200                                      /* Baud rate in bit/s                   */

#define SERIAL_PIN_RX           IfxAsclin0_RXA_P14_1_IN                     /* RX pin of the board                  */
#define SERIAL_PIN_TX           IfxAsclin0_TX_P14_0_OUT                     /* TX pin of the board                  */

#define INTPRIO_ASCLIN0_TX      19                                          /* Priority of the ISR                  */
#define INTPRIO_ASCLIN0_RX      14
#define INTPRIO_ASCLIN0_ER      20

#define ASC_TX_BUFFER_SIZE      64                                          /* Definition of the buffer size        */
#define ASC_RX_BUFFER_SIZE      64

/*********************************************************************************************************************/
/*-------------------------------------------------Global variables--------------------------------------------------*/
/*********************************************************************************************************************/
static IfxStdIf_DPipe stdio;    //使用print必须加上
IfxAsclin_Asc g_asc;                                                        /* Declaration of the ASC handle        */
uint8 g_ascTxBuffer[ASC_TX_BUFFER_SIZE + sizeof(Ifx_Fifo) + 8];
uint8 g_ascRxBuffer[ASC_RX_BUFFER_SIZE + sizeof(Ifx_Fifo) + 8];/* Declaration of the FIFOs parameters  */

/*********************************************************************************************************************/
/*---------------------------------------------Function Implementations----------------------------------------------*/
/*********************************************************************************************************************/
IFX_INTERRUPT(asclin0_Tx_ISR, 0, INTPRIO_ASCLIN0_TX);                       /* Adding the Interrupt Service Routine */

void asclin0_Tx_ISR(void)
{
    IfxAsclin_Asc_isrTransmit(&g_asc);
}

void init_UART(void)
{
    /* Initialize an instance of IfxAsclin_Asc_Config with default values */
    IfxAsclin_Asc_Config ascConfig;
    IfxAsclin_Asc_initModuleConfig(&ascConfig, &MODULE_ASCLIN0);//同时配置发送接收
    //IfxAsclin_Asc_initModuleConfig(&ascConfig, SERIAL_PIN_TX.module);//只配置了发送

    /* Set the desired baud rate设置波特率 */
    ascConfig.baudrate.baudrate = SERIAL_BAUDRATE;

    /* ISR priorities and interrupt target */
    ascConfig.interrupt.txPriority = INTPRIO_ASCLIN0_TX;
    ascConfig.interrupt.rxPriority = INTPRIO_ASCLIN0_RX;//加上接收的
    ascConfig.interrupt.erPriority = INTPRIO_ASCLIN0_ER;//错误
    ascConfig.interrupt.typeOfService = IfxCpu_Irq_getTos(IfxCpu_getCoreIndex());//使能，使用哪个CPU

    /* FIFO configuration缓冲区配置 */
    ascConfig.txBuffer = &g_ascTxBuffer;
    ascConfig.txBufferSize = ASC_TX_BUFFER_SIZE;
    ascConfig.rxBuffer = &g_ascRxBuffer;
    ascConfig.rxBufferSize = ASC_RX_BUFFER_SIZE;

    /* Port pins configuration 管脚配置*/
    const IfxAsclin_Asc_Pins pins =
    {
        NULL_PTR,         IfxPort_InputMode_pullUp,     /* CTS pin not used     */
        &SERIAL_PIN_RX,   IfxPort_InputMode_pullUp,     /* RX pin not used      */
        NULL_PTR,         IfxPort_OutputMode_pushPull,  /* RTS pin not used     */
        &SERIAL_PIN_TX,   IfxPort_OutputMode_pushPull,  /* TX pin               */
        IfxPort_PadDriver_cmosAutomotiveSpeed1
    };
    ascConfig.pins = &pins;
    //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
    IfxAsclin_Asc_initModule(&g_asc, &ascConfig);                       /* Initialize module with above parameters  */
    IfxAsclin_Asc_stdIfDPipeInit(&stdio, &g_asc);       //使用print必须加上
    Ifx_Console_init(&stdio);

}

void send_UART_message(void)
{
    uint8 txData[] = "Hello World!";                                    /* Message to send                          */
    Ifx_SizeT count = 12;                                               /* Size of the message                      */
    IfxAsclin_Asc_write(&g_asc, txData, &count, TIME_INFINITE);         /* Transfer of data                         */
}
#include "Ifx_Types.h"
#include "IfxCpu.h"
#include "IfxScuWdt.h"
#include "UART_VCOM.h"
#include "Ifx_Console.h"//print用
#include "Bsp.h"//延时用得上

IfxCpu_syncEvent g_cpuSyncEvent = 0;
uint32 i = 0;

int core0_main(void)
{
    IfxCpu_enableInterrupts();

    /* !!WATCHDOG0 AND SAFETY WATCHDOG ARE DISABLED HERE!!
     * Enable the watchdogs and service them periodically if it is required
     */
    IfxScuWdt_disableCpuWatchdog(IfxScuWdt_getCpuWatchdogPassword());
    IfxScuWdt_disableSafetyWatchdog(IfxScuWdt_getSafetyWatchdogPassword());

    /* Wait for CPU sync event */
    IfxCpu_emitEvent(&g_cpuSyncEvent);
    IfxCpu_waitEvent(&g_cpuSyncEvent, 1);

    init_UART();            /* Initialize the module            */
    send_UART_message();    /* Send the message "Hello World!"  */

    while(1)
    {
        Ifx_Console_print("Hello, world!(%d)n", i++);//尝试使用Ifx_Console_print的函数，类似于printf
        waitTime(IfxStm_getTicksFromMilliseconds(BSP_DEFAULT_TIMER, 500));
    }
    return (1);
}

测试结果

最后

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