WARP Project Forums - Wireless Open-Access Research Platform

Hi,

We are try to use Warp Board to communicate with host PC by ethernet. Unfortunately, we haven't been successful on this front. Basically, we read ackmac.c and took out codes that relate to the ethernet communication. According to these codes, we made a simple code, as attached, to perform the following task --- whenever PPC gets a packet from ethernet, it sends it back over ethernet right away. We use ethereal (http://www.ethereal.com/) at the host PC to monitor packets.

We have two problems:

Problems

Problem (A):

We used the attached code, in two different project settings: First, Rice's OFDM reference design project, in which we only replaced ackmac.c with EMAC_Test.c; Second, we created a new project using the standalone OS with only two peripherals -- RS232 and Ethernet_MAC.

Using Rice's OFDM reference design project, we can see the Ethernet_mac was initialized successfully, and the loop works fine. From stdout, we can see the debug info outputs are as expected --- "*******received data from ethernet" and "*******transmit data back to ethernet". On the other hand, using the project we built, compilation is OK, but the
initialization of ethernet_mac fails at self test! Since the code is the same, most likely the cause lies in project settings. We would like to seek your help to resolve this issue. The .mss file of our project is attached.

Problem (B):

From the Ethereal, we can see the content of the packet transmitted or received in the Ethernet Card of the host PC. After the warp board receive the ethernet packet from the host PC I have tried to transmit the packet with different content back to the host PC. We can see the host PC received the packet from the warp board correctly from the Ethereal.

Since we can not see the source and destination MAC address of packet transmitted or received in the Ethernet Card of the host PC by the Ethereal. We can not figure out the MAC address set function "XEmac_SetMacAddress" does work or not. Can you give us some advice to verify the Mac address of Power PC is set correctly.

Code

#include "xparameters.h"
#include <stdio.h>
#include <pthread.h>
#include <errno.h>
#include <stdlib.h>
#include "xutil.h"
#include "xcache_l.h"
#include "xexception_l.h"
#include "xcache_l.h"
#include "xutil.h"
#include "xemac_l.h"
#include "xemac.h"
#include "xuartlite_l.h"

#include "xbasic_types.h"
#include "xstatus.h"
#include "xio.h"

//Ethernet - Parameters used for Ethernet
#define MY_XEM_MAX_FRAME_SIZE 2000
#define MY_XEM_MAX_FRAME_SIZE_IN_WORDS 2000
XEmac Emac;
XEmac *InstancePtr1 = &Emac;
Xuint8 RXBuffer[MY_XEM_MAX_FRAME_SIZE_IN_WORDS];
Xuint8 TXBuffer[MY_XEM_MAX_FRAME_SIZE_IN_WORDS];

int warpmac_init1();
int main()
{
    xil_printf("************Program begins from Main()\r\n");

    int l;
    int tmp_i;

    Xuint32 FrameLen = MY_XEM_MAX_FRAME_SIZE;
    XStatus Status;
    Xuint32 Options;
   
    char fullmac[6];
    fullmac[0] = 0;
    fullmac[1] = 1;
    fullmac[2] = 2;
    fullmac[3] = 3;
    fullmac[4] = 4;
    fullmac[5] = 5;

    warpmac_init1();
   
   xil_printf("entering while...\r\n");

    while(1)
    {

        FrameLen = MY_XEM_MAX_FRAME_SIZE;
        Status = XEmac_PollRecv(InstancePtr1, (Xuint8 *)RXBuffer, &FrameLen);
        if (Status != XST_SUCCESS)
        {
            if (!(Status == XST_NO_DATA || Status == XST_BUFFER_TOO_SMALL))
            {
                XEmac_Reset(InstancePtr1);
                XEmac_SetMacAddress(InstancePtr1, fullmac);
                Options = ( XEM_INSERT_FCS_OPTION |
                        XEM_INSERT_PAD_OPTION |
                        XEM_UNICAST_OPTION |
                        XEM_BROADCAST_OPTION |
                        XEM_POLLED_OPTION|
                        XEM_PROMISC_OPTION|
                        XEM_STRIP_PAD_FCS_OPTION );
                XEmac_SetOptions(InstancePtr1, Options);
                XEmac_Start(InstancePtr1);               
                xil_printf("no data received...\r\n");
            }           
        }
        else
        {
            for (tmp_i=0;tmp_i<FrameLen;tmp_i++)
            {
                TXBuffer[tmp_i] = RXBuffer[tmp_i];
            }
            xil_printf("*******received data from ethernet\r\n");
            XEmac_PollSend(InstancePtr1, &TXBuffer, FrameLen);
            xil_printf("*******transmit data back to ethernet\r\n");
        }
    }   
    return 0;
}

int warpmac_init1()
{

    xil_printf("    Initializing Ethernet...");
    /////////////////////////ETHERNET///////////////////////
    int i,l;
    XStatus Status;
    Xuint32 Options;
    Xuint16 DeviceId = XPAR_ETHERNET_MAC_DEVICE_ID;
    /*
     * Initialize the XEmac component. The device ID chosen should be
     * configured without DMA (see the xemac_g.c file)
     */
   Status = XEmac_Initialize(InstancePtr1, DeviceId);
    if (Status != XST_SUCCESS)
   {
        return XST_FAILURE;
   }
    /*
     * Run self-test on the device, which verifies basic sanity of the
     * device and the driver.
     */
    Status = XEmac_SelfTest(InstancePtr1);
   if (Status != XST_SUCCESS)
   {
        xil_printf("Test Fail...");
      return XST_FAILURE;
    }

    /*
     * Configure the device to be promiscuous
     */
    Options = XEmac_GetOptions(InstancePtr1);
    Options |= (XEM_INSERT_FCS_OPTION |
                XEM_INSERT_PAD_OPTION |
                XEM_UNICAST_OPTION |
                XEM_BROADCAST_OPTION |
                XEM_POLLED_OPTION|
                XEM_PROMISC_OPTION|
                XEM_STRIP_PAD_FCS_OPTION);

    Status = XEmac_SetOptions(InstancePtr1, Options);
    if (Status != XST_SUCCESS)
    {
        return XST_FAILURE;
    }

    /*
     * Set the MAC Addrees
     */
    //Status = XEmac_SetMacAddress(InstancePtr1, LocalAddress); //Note: Even though we are setting a MAC
                                                             //Address for the node, it is in promiscuous
                                                             //mode
    if (Status != XST_SUCCESS)
    {
        return XST_FAILURE;
    }

    /*
     * Start the device, which enables the transmitter and receiver
     */
    Status = XEmac_Start(InstancePtr1);
    if (Status != XST_SUCCESS)
    {
        return XST_FAILURE;
    }

    Status = XEmac_Initialize(InstancePtr1, DeviceId);
    if (Status != XST_SUCCESS)
    {
        return XST_FAILURE;
    }

    /*
     * Run self-test on the device, which verifies basic sanity of the
     * device and the driver.
     */
    Status = XEmac_SelfTest(InstancePtr1);
    if (Status != XST_SUCCESS)
    {
        return XST_FAILURE;
    }
    xil_printf("--  finish initial process --\r\n");
    return 0;
}

MSS file

PARAMETER VERSION = 2.2.0


BEGIN OS
PARAMETER OS_NAME = standalone
PARAMETER OS_VER = 1.00.a
PARAMETER PROC_INSTANCE = ppc405_1
END

BEGIN OS
PARAMETER OS_NAME = xilkernel
PARAMETER OS_VER = 3.00.a
PARAMETER PROC_INSTANCE = ppc405_0
PARAMETER stdout = RS232
PARAMETER stdin = RS232
END


BEGIN PROCESSOR
PARAMETER DRIVER_NAME = cpu_ppc405
PARAMETER DRIVER_VER = 1.00.a
PARAMETER HW_INSTANCE = ppc405_0
PARAMETER COMPILER = powerpc-eabi-gcc
PARAMETER ARCHIVER = powerpc-eabi-ar
PARAMETER CORE_CLOCK_FREQ_HZ = 100000000
END

BEGIN PROCESSOR
PARAMETER DRIVER_NAME = cpu_ppc405
PARAMETER DRIVER_VER = 1.00.a
PARAMETER HW_INSTANCE = ppc405_1
PARAMETER COMPILER = powerpc-eabi-gcc
PARAMETER ARCHIVER = powerpc-eabi-ar
END


BEGIN DRIVER
PARAMETER DRIVER_NAME = generic
PARAMETER DRIVER_VER = 1.00.a
PARAMETER HW_INSTANCE = jtagppc_0
END

BEGIN DRIVER
PARAMETER DRIVER_NAME = generic
PARAMETER DRIVER_VER = 1.00.a
PARAMETER HW_INSTANCE = iocm_cntlr
END

BEGIN DRIVER
PARAMETER DRIVER_NAME = generic
PARAMETER DRIVER_VER = 1.00.a
PARAMETER HW_INSTANCE = docm_cntlr
END

BEGIN DRIVER
PARAMETER DRIVER_NAME = plbarb
PARAMETER DRIVER_VER = 1.01.a
PARAMETER HW_INSTANCE = plb
END

BEGIN DRIVER
PARAMETER DRIVER_NAME = opbarb
PARAMETER DRIVER_VER = 1.02.a
PARAMETER HW_INSTANCE = opb
END

BEGIN DRIVER
PARAMETER DRIVER_NAME = plb2opb
PARAMETER DRIVER_VER = 1.00.a
PARAMETER HW_INSTANCE = plb2opb
END

BEGIN DRIVER
PARAMETER DRIVER_NAME = uartlite
PARAMETER DRIVER_VER = 1.01.a
PARAMETER HW_INSTANCE = RS232
END

BEGIN DRIVER
PARAMETER DRIVER_NAME = generic
PARAMETER DRIVER_VER = 1.00.a
PARAMETER HW_INSTANCE = CLKBRDCONFIG_0
END

BEGIN DRIVER
PARAMETER DRIVER_NAME = emac
PARAMETER DRIVER_VER = 1.00.e
PARAMETER HW_INSTANCE = Ethernet_MAC
END

End

That is all. Thanks.