petalinux 双DMA驱动

你好我最近在调试双DMA，用的是ultrascale+系列的zynq芯片，然后按照你的方法是可以加载进去dma驱动的

s://img-mid.csdnimg.cn/release/static/image/mid/ask/842371512386173.png "#left")

加载打印信息如下
[ 297.179714] axidma: axidma_dma.c: axidma_dma_init: 718: DMA: Found 2 transmit channels and 2 receive channels.
[ 297.189716] axidma: axidma_dma.c: axidma_dma_init: 720: VDMA: Found 0 transmit channels and 0 receive channels.

然后我C语言代码如下 运行的时候会报下面这个错误
xilinx-vdma 80001000.dma: Channel ffffffc87ae7c418 has errors 10, cdr 0 tdr 0
xilinx-vdma 80000000.dma: Channel ffffffc87ae7c818 has errors 10, cdr 0 tdr 0

请问这个该如何解决，并且在vivado中将dma的地址也设置了40bit
或者可以有偿求一份你的工程学习下吗

// dma
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <string.h>             // Strlen function

#include <fcntl.h>              // Flags for open()
#include <sys/stat.h>           // Open() system call
#include <sys/types.h>          // Types for open()
#include <sys/mman.h>           // Mmap system call
#include <sys/ioctl.h>          // IOCTL system call
#include <unistd.h>             // Close() system call
#include <sys/time.h>           // Timing functions and definitions
#include <getopt.h>             // Option parsing
#include <errno.h>              // Error codes

#include "libaxidma.h"          // Interface to the AXI DMA
#include "util.h"               // Miscellaneous utilities
#include "conversion.h"         // Miscellaneous conversion utilities

// user mabo
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <pthread.h>
#include <time.h>
#include <semaphore.h>
// =========================================================================================
#include <dirent.h>


// =====================================================================================================
/*----------------------------------------------------------------------------
 * Internal Definitons
 *----------------------------------------------------------------------------*/
// dma
// The size of data to send per transfer (1080p image, 7.24 MiB)
//#define IMAGE_SIZE                  (1920 * 1080)
#define TRANSFER_NUM                1024
#define DEFAULT_TRANSFER_SIZE       ((size_t)(TRANSFER_NUM * sizeof(int)))   // sizeof(int) = 4

char file1[100] = "test1.dat";
char file2[100] = "test2.dat";
int main()
{

    // axi dma
    axidma_dev_t axidma_dev;
    
    FILE *fil1 = NULL;
    FILE *fil2 = NULL;
    int rx_channel1;
    int rx_channel2;
    int i = 0;
    int j = 0;
    unsigned *rx_buf1;
    unsigned *rx_buf2; 

    size_t rx_size; 
    const array_t *rx_chans;

    //tx_size = DEFAULT_TRANSFER_SIZE;
    rx_size = DEFAULT_TRANSFER_SIZE;
    
    
    
    // 初始化
    // 初始化DMA
    axidma_dev = axidma_init();
    if (axidma_dev == NULL) {
        fprintf(stderr, "Failed to initialize the AXI DMA device.\n");
        return 0;
    }
     // rx channels
    rx_chans = axidma_get_dma_rx(axidma_dev);
    printf("rx_chans->len is [%d].\n",rx_chans->len);
    printf("===========================================\n");
    if(rx_chans->len < 1)
    {
        printf("Error: no rx channels found\n");
        return 0;
    }



    rx_channel1 = rx_chans->data[0];
    rx_channel2 = rx_chans->data[1];
    printf("rx_chans->data[0] is [%d].\n",rx_chans->data[0]);
    printf("rx_chans->data[1] is [%d].\n",rx_chans->data[1]);
    printf("===========================================\n");
    
    rx_buf1 = axidma_malloc(axidma_dev, rx_size);
    if (rx_buf1 == NULL) {
        perror("Unable to allocate receive buffer from the AXI DMA device");
        return 0;
    }
    
    rx_buf2 = axidma_malloc(axidma_dev, rx_size);
    if (rx_buf2 == NULL) {
        perror("Unable to allocate receive buffer from the AXI DMA device");
        return 0;
    }
    
    fil1 = fopen(file1, "a+");
    fil2 = fopen(file2, "a+");
    for(i = 0; i++; i < 10)
    {
    // 第一路
        axidma_oneway_transfer(axidma_dev, rx_channel1, rx_buf1, rx_size, false);
         for(j = 0; j <  DEFAULT_TRANSFER_SIZE ; j = j + 4)                // 1024 * 4Byte
        {
            fprintf(fil1,"%x ",rx_buf1[i/4]);
        }
        fprintf(fil1,";\n");    
        
        // 第二路
        axidma_oneway_transfer(axidma_dev, rx_channel2, rx_buf2, rx_size, false);
        for(j = 0; j <  DEFAULT_TRANSFER_SIZE ; j = j + 4)                // 1024 * 4Byte
        {
            fprintf(fil2,"%x ",rx_buf2[i/4]);
        }
        fprintf(fil2,";\n");
        
    }        
    
    
    fclose(fil1);
    fclose(fil2);
    
    axidma_free(axidma_dev, rx_buf1, rx_size);
    axidma_free(axidma_dev, rx_buf2, rx_size);
    printf("axidma_free rx_buf successful\n");    
    axidma_destroy(axidma_dev);
    printf("axidma_destroy successful\n");
    return 0;
}

去GitHub、Stack Overflow找找吧