dsp6657的helloworld例程测试-第一篇

环境搭建可以参考http://blog.sina.com.cn/s/blog_ed2e19900102xi2j.html

1. 先从mcsdk导入工程，helloworld例程

2. 提示有错误，估计是库找不到的原因。

3. 打开CCS的配置页面，add加入需要的库，分别是NDK，PDK，其中NDK就是网络Network Developer's Kit开发包，如果CCS添加NDK失败的话，可能是NDK的版本太旧了，去下载个新的，下载地址：http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/ndk/index.html，自己选个版本即可

 

4. 看下工程源码，其实想找个简单的入门例程研究，可惜找了个网络TCP/IP协议栈的，研究研究吧

/*
 * helloWorld_bios6.c
 * TCP/IP Stack 'Hello World!' Example ported to use BIOS6 OS.
*/

//--------------------------------------------------------------------------
// IP Stack 'Hello World!' Example
// To test it as is, use with helloWorld.exe from winapps directory
//

#include <stdio.h>
#include <ti/ndk/inc/netmain.h>

/* BIOS6 include */
#include <ti/sysbios/BIOS.h>

/* Platform utilities include */
#include "ti/platform/platform.h"
#include "ti/platform/resource_mgr.h"

/* Platform Information - we will read it form the Platform Library */
platform_info  gPlatformInfo;


//---------------------------------------------------------------------------
// Title String
//
char *VerStr = "
TCP/IP Stack 'Hello World!' Application

";

// Our NETCTRL callback functions
static void   NetworkOpen();
static void   NetworkClose();
static void   NetworkIPAddr( IPN IPAddr, uint IfIdx, uint fAdd );

// Fun reporting function
static void   ServiceReport( uint Item, uint Status, uint Report, HANDLE hCfgEntry );

// External references
extern int dtask_udp_hello();

//---------------------------------------------------------------------------
// Configuration
//
char *HostName    = "tidsp";
char *LocalIPAddr = "192.168.2.100";
char *LocalIPMask = "255.255.255.0";    // Not used when using DHCP
char *GatewayIP   = "192.168.2.101";    // Not used when using DHCP
char *DomainName  = "demo.net";         // Not used when using DHCP
char *DNSServer   = "0.0.0.0";          // Used when set to anything but zero

/*************************************************************************
 *  @b EVM_init()
 * 
 *  @n
 *
 *  Initializes the platform hardware. This routine is configured to start in 
 *   the evm.cfg configuration file. It is the first routine that BIOS
 *   calls and is executed before Main is called. If you are debugging within
 *  CCS the default option in your target configuration file may be to execute 
 *  all code up until Main as the image loads. To debug this you should disable
 *  that option. 
 *
 *  @param[in]  None
 * 
 *  @retval
 *      None
 ************************************************************************/
void EVM_init()
{
        int i;
        platform_init_flags  sFlags;
        platform_init_config sConfig;
    /* Status of the call to initialize the platform */
    Int32 pform_status;
    /* Platform Information - we will read it form the Platform Library */
    platform_info       sPlatformInfo;

        /*
         * You can choose what to initialize on the platform by setting the following
         * flags. We will initialize everything.
        */
        memset( (void *) &sFlags,  0, sizeof(platform_init_flags));
        memset( (void *) &sConfig, 0, sizeof(platform_init_config));

        sFlags.pll = 0;
        sFlags.ddr = 0;
    sFlags.tcsl = 0;    /* Time stamp counter   */
    sFlags.phy  = 1;    /* Ethernet                     */
    sFlags.ecc = 0;

    sConfig.pllm = 0;

        pform_status = platform_init(&sFlags, &sConfig);

        /* If we initialized the platform okay */
        if (pform_status == Platform_EOK) {
                /* Get information about the platform so we can use it in various places */
                memset( (void *) &sPlatformInfo, 0, sizeof(platform_info));
                (void) platform_get_info(&sPlatformInfo);
        }
        else {
                /* Intiialization of the platform failed... die */
                printf("Platform failed to initialize. Error code %d 
", pform_status);
                printf("We will die in an infinite loop... 
");
                while (1) {
                        (void) platform_led(1, PLATFORM_LED_ON, (LED_CLASS_E) PLATFORM_USER_LED_CLASS);
                        (void) platform_delay(50000);
                        (void) platform_led(1, PLATFORM_LED_OFF, (LED_CLASS_E) PLATFORM_USER_LED_CLASS);
                        (void) platform_delay(50000);
                };
        }

        platform_write_configure(PLATFORM_WRITE_PRINTF);
        platform_uart_init();
        platform_uart_set_baudrate(19200);

        /* Check to see that we are running on the Master Core */
        if (platform_get_coreid() != 0) {
                /* We are not on the Master Core... die */
                printf("You must run this application on Core 0. 
");
                printf("We will die in an infinite loop... 
");
                while (1) {
                        (void) platform_led(1, PLATFORM_LED_ON, (LED_CLASS_E) PLATFORM_USER_LED_CLASS);
                        (void) platform_delay(50000);
                        (void) platform_led(1, PLATFORM_LED_OFF, (LED_CLASS_E) PLATFORM_USER_LED_CLASS);
                        (void) platform_delay(50000);
                };
        }

        /* Clear the state of the LEDs to OFF */
        for (i=0; i < sPlatformInfo.led[1].count; i++) {
                platform_led(i, PLATFORM_LED_OFF, (LED_CLASS_E) PLATFORM_USER_LED_CLASS);
        }

        return;
}


//---------------------------------------------------------------------
// Main Entry Point
//---------------------------------------------------------------------
int main()
{
 /* Start the BIOS 6 Scheduler */
 BIOS_start ();
}

//
// Main Thread
//
int StackTest()
{
    int             rc;
    int        i;
    HANDLE          hCfg;

     //
    // THIS MUST BE THE ABSOLUTE FIRST THING DONE IN AN APPLICATION before
    //  using the stack!!
    //
    rc = NC_SystemOpen( NC_PRIORITY_LOW, NC_OPMODE_INTERRUPT );
    if( rc )
    {
        platform_write("NC_SystemOpen Failed (%d)
",rc);
        for(;;);
    }

    // Print out our banner
    platform_write(VerStr);

    //
    // Create and build the system configuration from scratch.
    //

    // Create a new configuration
    hCfg = CfgNew();
    if( !hCfg )
    {
        platform_write("Unable to create configuration
");
        goto main_exit;
    }

    
    // We better validate the length of the supplied names
    if( strlen( DomainName ) >= CFG_DOMAIN_MAX ||
        strlen( HostName ) >= CFG_HOSTNAME_MAX )
    {
        printf("Names too long
");
        goto main_exit;
    }

    // Add our global hostname to hCfg (to be claimed in all connected domains)
    CfgAddEntry( hCfg, CFGTAG_SYSINFO, CFGITEM_DHCP_HOSTNAME, 0,
                 strlen(HostName), (UINT8 *)HostName, 0 );

    // If the IP address is specified, manually configure IP and Gateway
    if (!platform_get_switch_state(1))
    {
        CI_IPNET NA;
        CI_ROUTE RT;
        IPN      IPTmp;

        // Setup manual IP address
        bzero( &NA, sizeof(NA) );
        NA.IPAddr  = inet_addr(LocalIPAddr);
        NA.IPMask  = inet_addr(LocalIPMask);
        strcpy( NA.Domain, DomainName );
        NA.NetType = 0;

        // Add the address to interface 1
        CfgAddEntry( hCfg, CFGTAG_IPNET, 1, 0,
                           sizeof(CI_IPNET), (UINT8 *)&NA, 0 );

        // Add the default gateway. Since it is the default, the
        // destination address and mask are both zero (we go ahead
        // and show the assignment for clarity).
        bzero( &RT, sizeof(RT) );
        RT.IPDestAddr = 0;
        RT.IPDestMask = 0;
        RT.IPGateAddr = inet_addr(GatewayIP);

        // Add the route
        CfgAddEntry( hCfg, CFGTAG_ROUTE, 0, 0,
                           sizeof(CI_ROUTE), (UINT8 *)&RT, 0 );

        // Manually add the DNS server when specified
        IPTmp = inet_addr(DNSServer);
        if( IPTmp )
            CfgAddEntry( hCfg, CFGTAG_SYSINFO, CFGITEM_DHCP_DOMAINNAMESERVER,
                         0, sizeof(IPTmp), (UINT8 *)&IPTmp, 0 );
    }
    // Else we specify DHCP
    else
    {
        CI_SERVICE_DHCPC dhcpc;

        // Specify DHCP Service on IF-1
        bzero( &dhcpc, sizeof(dhcpc) );
        dhcpc.cisargs.Mode   = CIS_FLG_IFIDXVALID;
        dhcpc.cisargs.IfIdx  = 1;
        dhcpc.cisargs.pCbSrv = &ServiceReport;
        CfgAddEntry( hCfg, CFGTAG_SERVICE, CFGITEM_SERVICE_DHCPCLIENT, 0,
                     sizeof(dhcpc), (UINT8 *)&dhcpc, 0 );
    }

    //
    // Configure IPStack/OS Options
    //

    // We don't want to see debug messages less than WARNINGS
    rc = DBG_WARN;
    CfgAddEntry( hCfg, CFGTAG_OS, CFGITEM_OS_DBGPRINTLEVEL,
                 CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );

    //
    // This code sets up the TCP and UDP buffer sizes
    // (Note 8192 is actually the default. This code is here to
    // illustrate how the buffer and limit sizes are configured.)
    //

    // UDP Receive limit
    rc = 8192;
    CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_SOCKUDPRXLIMIT,
                 CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );

    //
    // Boot the system using this configuration
    //
    // We keep booting until the function returns 0. This allows
    // us to have a "reboot" command.
    //
    do
    {
        rc = NC_NetStart( hCfg, NetworkOpen, NetworkClose, NetworkIPAddr );
    } while( rc > 0 );

    // Delete Configuration
    CfgFree( hCfg );

    // Close the OS
main_exit:
    NC_SystemClose();
    return(0);
}


//
// System Task Code [ Server Daemon Servers ]
//
static HANDLE hHello=0;

//
// NetworkOpen
//
// This function is called after the configuration has booted
//
static void NetworkOpen()
{
    // Create our local server
    hHello = DaemonNew( SOCK_DGRAM, 0, 7, dtask_udp_hello,
                       OS_TASKPRINORM, OS_TASKSTKNORM, 0, 1 );
}

//
// NetworkClose
//
// This function is called when the network is shutting down,
// or when it no longer has any IP addresses assigned to it.
//
static void NetworkClose()
{
    DaemonFree( hHello );
}


//
// NetworkIPAddr
//
// This function is called whenever an IP address binding is
// added or removed from the system.
//
static void NetworkIPAddr( IPN IPAddr, uint IfIdx, uint fAdd )
{
    IPN IPTmp;

    if( fAdd )
        printf("Network Added: ");
    else
        printf("Network Removed: ");

    // Print a message
    IPTmp = ntohl( IPAddr );
    printf("If-%d:%d.%d.%d.%d
", IfIdx,
            (UINT8)(IPTmp>>24)&0xFF, (UINT8)(IPTmp>>16)&0xFF,
            (UINT8)(IPTmp>>8)&0xFF, (UINT8)IPTmp&0xFF );
}

//
// Service Status Reports
//
// Here's a quick example of using service status updates
//
static char *TaskName[]  = { "Telnet","HTTP","NAT","DHCPS","DHCPC","DNS" };
static char *ReportStr[] = { "","Running","Updated","Complete","Fault" };
static char *StatusStr[] = { "Disabled","Waiting","IPTerm","Failed","Enabled" };
static void ServiceReport( uint Item, uint Status, uint Report, HANDLE h )
{
    printf( "Service Status: %-9s: %-9s: %-9s: %03d
",
            TaskName[Item-1], StatusStr[Status],
            ReportStr[Report/256], Report&0xFF );

    //
    // Example of adding to the DHCP configuration space
    //
    // When using the DHCP client, the client has full control over access
    // to the first 256 entries in the CFGTAG_SYSINFO space.
    //
    // Note that the DHCP client will erase all CFGTAG_SYSINFO tags except
    // CFGITEM_DHCP_HOSTNAME. If the application needs to keep manual
    // entries in the DHCP tag range, then the code to maintain them should
    // be placed here.
    //
    // Here, we want to manually add a DNS server to the configuration, but
    // we can only do it once DHCP has finished its programming.
    //
    if( Item == CFGITEM_SERVICE_DHCPCLIENT &&
        Status == CIS_SRV_STATUS_ENABLED &&
        (Report == (NETTOOLS_STAT_RUNNING|DHCPCODE_IPADD) ||
         Report == (NETTOOLS_STAT_RUNNING|DHCPCODE_IPRENEW)) )
    {
        IPN IPTmp;

        // Manually add the DNS server when specified
        IPTmp = inet_addr(DNSServer);
        if( IPTmp )
            CfgAddEntry( 0, CFGTAG_SYSINFO, CFGITEM_DHCP_DOMAINNAMESERVER,
                         0, sizeof(IPTmp), (UINT8 *)&IPTmp, 0 );
    }
}

5. 刚开始这些代码看的不是很明白。main函数里面为啥只有一个BIOS_start();函数？不是应该创建任务之类的？

int main()
{
 /* Start the BIOS 6 Scheduler */
 BIOS_start ();
}

6. 下面函数怎么运行的？

int StackTest()

7. 是不是BIOS的图形配置界面搞定的？去看下图形配置界面。图形配置界面应该有个.tcf文件，但是工程没找到？

8. 下面的是使用协议栈必须首先调用的函数

rc = NC_SystemOpen( NC_PRIORITY_LOW, NC_OPMODE_INTERRUPT );

9. 接着是配置网络参数的函数

CfgAddEntry( hCfg, CFGTAG_SYSINFO, CFGITEM_DHCP_HOSTNAME, 0,
                 strlen(HostName), (UINT8 *)HostName, 0 );

10. 这次疑问很多，RTSC是德州仪器提出的嵌入式组件，我理解就是把代码模块化，这个模块化的工作交给CCS去管理，比如需要一个ADC模块，在CCS里面配置就可以，CCS会把代码加入你的工程，XDCTools 是完成上面的工具，RTSC是一种理念。