AM5708: UART callback模式发送和接收无法进Callback

检查一下代码逻辑或者硬件连接是否有问题吧，或是用调试工具调试一下，看看中断是否正常触发

看看中断是否配置正确和优先级有没有比UART高的

DSP核我只配了一个中断，帮忙看下这样配置是否有问题

麻烦别用图片，重新用代码形式发一下吧

static void drv_uart_HwiInit(UART_HwAttrs *pHwAttrs)
{
    Hwi_Params hwi_params;
    Error_Block eb;
    Error_init(&eb);
    Hwi_Params_init(&hwi_params);

    CSL_xbarIrqConfigure(CSL_XBAR_IRQ_CPU_ID_DSP1, CSL_XBAR_INST_DSP1_IRQ_44, CSL_XBAR_UART1_IRQ);

    hwi_params.eventId = pHwAttrs->eventId;
    hwi_params.arg = NULL;
    hwi_params.priority = 0x20;
    hwi_params.maskSetting = Hwi_MaskingOption_SELF;
    hwi_uart = Hwi_create(4, drv_uart_ISRHandle, &hwi_params, &eb);
    if(NULL == hwi_uart)
    {
        M_TraceL("HWI Uart Create Failed");
    }
}

这段代码看起来是没问题的，只用一个中断来处理UART

清除一下中断状态试试

ARM核上面跑的Linux,我是直接用的烧录器直接对DSP进行烧录的

好像没用，我把整个工程代码帖出来，帮忙看看有什么问题没，创建了一个Task循环判断，目的是通过串口中断实现自发自收

#include "drv_uart.h"
#include "drv_debug.h"
#include <string.h>

/* XDCtools Header files */
#include <xdc/std.h>
#include <xdc/cfg/global.h>
#include <xdc/runtime/Error.h>
#include <xdc/runtime/System.h>

/* BIOS Header files */
#include <ti/sysbios/BIOS.h>
#include <ti/sysbios/hal/Hwi.h>
#include <ti/sysbios/knl/Task.h>

#include <ti/board/board.h>

#define UART_INSTANCE                       (0)
#define TASK_UART_PRIORITY                  (8)
#define TASK_UART_STACK_SIZE                (2048)

#define UART_BUFFER_SIZE                    (128 - 1)

typedef struct
{
    uint8_t  size;
    uint8_t  buffer[UART_BUFFER_SIZE];
}TS_UART_MESSAGE;

typedef struct
{
    TS_UART_MESSAGE write;
    TS_UART_MESSAGE read;
}TS_UART_DATA;

static UART_Handle uart_handle;
static Hwi_Handle hwi_uart;
static TS_UART_DATA uartData;

static Task_Handle task_uart_handle;
static uint8_t stack_task_uart[TASK_UART_STACK_SIZE];

TS_UART_DATA *drv_uart_GetUartData(void)
{
    return &uartData;
}

static void drv_uart_GpioInit(void)
{
    /*Pad configurations */
    HW_WR_REG32(CSL_DSP_CORE_PAD_IO_REGISTERS_REGS + CSL_CONTROL_CORE_PAD_IO_PAD_UART1_RXD, 0x00040000);
    HW_WR_REG32(CSL_DSP_CORE_PAD_IO_REGISTERS_REGS + CSL_CONTROL_CORE_PAD_IO_PAD_UART1_TXD, 0x00000000);
}

static void drv_uart_ISRHandle(uint32_t arg)
{
    HwiP_clearInterrupt(4);
}

static void drv_uart_HwiInit(UART_HwAttrs *pHwAttrs)
{
    Hwi_Params hwi_params;
    Error_Block eb;
    Error_init(&eb);
    HwiP_Params_init(&hwi_params);

    CSL_xbarDspIrqConfigure(1, CSL_XBAR_INST_DSP1_IRQ_44, CSL_XBAR_UART1_IRQ);

    HwiP_clearInterrupt(4);

    hwi_params.eventId = pHwAttrs->eventId;
    hwi_params.arg = NULL;
    hwi_params.priority = 10;
    hwi_params.maskSetting = Hwi_MaskingOption_SELF;
    hwi_uart = Hwi_create(4, drv_uart_ISRHandle, &hwi_params, &eb);
    if(NULL == hwi_uart)
    {
        M_TraceL("HWI Uart Create Failed");
    }
}

static void drv_uart_ConfigInit(void)
{
    UART_HwAttrs uart_cfg;
    UART_socGetInitCfg(UART_INSTANCE, &uart_cfg);
    uart_cfg.edmaHandle = NULL;
    uart_cfg.dmaMode    = FALSE;
    uart_cfg.loopback   = FALSE;
    UART_socSetInitCfg(UART_INSTANCE, &uart_cfg);
    uart_handle->hwAttrs = &uart_cfg;
    drv_uart_HwiInit(&uart_cfg);
}

void drv_uart_WriteCallback(UART_Handle handle, void *buf, size_t count)
{
    // 发送成功
    // M_TraceL("UART1 Send Complete");
}

void drv_uart_ReadCallback(UART_Handle handle, void *buf, size_t count)
{
    uartData.read.size = count;
    memcpy(uartData.read.buffer, buf, uartData.read.size);
    // 发送事件
}

void drv_uart_Init(void)
{
    UART_Params uart_params;

    drv_uart_GpioInit();
    drv_uart_ConfigInit();

    UART_Params_init(&uart_params);
    uart_params.writeDataMode = UART_DATA_BINARY;
    uart_params.writeMode = UART_MODE_CALLBACK;
    uart_params.writeCallback = drv_uart_WriteCallback;

    uart_params.readDataMode = UART_DATA_BINARY;
    uart_params.readMode = UART_MODE_CALLBACK;
    uart_params.readCallback = drv_uart_ReadCallback;

    uart_params.baudRate = 115200;
    uart_params.dataLength = UART_LEN_8;
    uart_params.parityType = UART_PAR_NONE;
    uart_params.stopBits = UART_STOP_ONE;
    uart_handle = UART_open(UART_INSTANCE, &uart_params);
    if(uart_handle == NULL)
    {
        M_TraceL("Uart%d Open Failed", UART_INSTANCE + 1);
    }

    UART_read(uart_handle, uart_read.buffer, sizeof(uart_read.buffer));
}

void drv_uart_Write(uint8_t *data, uint16_t size)
{
    if(uart_handle != NULL)
    {
        UART_write(uart_handle, data, size);
    }
}

int32_t drv_uart_Read(uint8_t *buffer, uint16_t size)
{
    return UART_read(uart_handle, buffer, size);
}

static void app_uart_TaskCallBack(UArg a0, UArg a1)
{
    TS_UART_DATA *pData = drv_uart_GetUartData();
    while(1)
    {
        if(pData->read.size != 0)
        {
            drv_uart_Write(pData->read.buffer, pData->read.size);
            pData->read.size = 0;
        }
        Task_sleep(1000);
    }
}

static void drv_uart_TaskInit(void)
{
    Error_Block eb;
    Task_Params task_params;
    Error_init(&eb);
    Task_Params_init(&task_params);
    task_params.priority = TASK_UART_PRIORITY;
    task_params.stackSize = TASK_UART_STACK_SIZE;
    task_params.stack = stack_task_uart;
    task_uart_handle = Task_create(app_uart_TaskCallBack, &task_params, &eb);
    if(task_uart_handle == NULL)
    {
        M_TraceL("Task UART Create Failed");
        BIOS_exit(0);
    }
}

void app_uart_Init(void)
{
    drv_uart_Init();
    drv_uart_TaskInit();
}

static void Device_Init(void)
{
    Board_initCfg boardCfg;

    boardCfg = BOARD_INIT_PINMUX_CONFIG |
                BOARD_INIT_MODULE_CLOCK |
                BOARD_INIT_UART_STDIO;
    Board_init(boardCfg);
}

/*
 *  ======== main ========
 */
int main()
{
    Device_Init();
    drv_uart_Init();
    BIOS_start();    /* does not return */
    return(0);
}

已经可以进发送CallBack了，接收CallBack也能进，  但是是数据满了才进，怎么设置空闲中断？

我写了个中断函数示例，加上去试试

// 启用空闲中断的宏定义

#define ENABLE_IDLE_INTERRUPT() // 设置寄存器、配置

// 空闲中断处理函数
void IdleInterruptHandler(void) {
// 执行一些低优先级的任务或系统监控
}

int main() {
// 初始化系统和硬件

// 启用空闲中断
ENABLE_IDLE_INTERRUPT();

// 设置空闲中断阈值（每秒触发一次）
SetIdleInterruptThreshold(/* 阈值设置 */);

while (1) {
// 主循环，处理其他高优先级的任务
// ...
}

return 0;
}

不好意思，ENABLE_IDLE_INTERRUPT这部分应该怎么配置，5708的UART寄存器里面没有找到有空闲中断的相关配置

Joy Zhang 说：

ENABLE_IDLE_INTERRUPT这部分应该怎么配置

不是配置项，就是个假设性的示例标识，可能是为了强调需要启用空闲中断的情况

我用了DMA，DMA接收也是定长数据，DMA可以接收不定长数据吗？

你好，可以的

void drv_uart_Read(void)
{
    if(uart_handle != NULL)
    {
#ifdef UART_DMA_ENABLE
        CacheP_wbInv((void *)uartRead.buffer, (int32_t)sizeof(uartRead.buffer));
        // 此处写的接收长度为1，假设长度设置为10，必须接收满10个字节才能触发中断
        UART_read(uart_handle, uartRead.buffer, 1);
#else
        UART_read(uart_handle, uartRead.buffer, 1);
#endif
    }
}

看着没啥问题

所以怎么设置接收非定长数据，UART_Read中有一个参数是接收长度，假设我将接受缓存设置为128Bytes, 如何1个字节、10个字节、100个字节都能触发中断呢？

您好，

我看你设置接收长度为1，也就是每次只接收一个字节的数据。如果你要能够触发中断来处理不同长度的数据，要修改一下

比如：1.使用中断服务函数处理接收到数据，而不是在drv_uart_Read函数中进行处理。

2.在中断服务函数中，根据接收到数据长度来判断是否达到预期的长度，如果达到预期长度进行处理。