一，加载步骤
1，导入工程，project->import existing CCS eclipse project
2，在工程上右键，点击properties。然后在箭头处双击，进去过file等4个c文件的位置完成修改路径。右键工程选择Rebuild Project，编译就通过了。
3，右键工程，选择新建Target Configuration File，命名为evmc6678l.ccxml。选择仿真器型号和芯片，配置gel文件
4，【Gel文件的执行时间一般在DSP connect target之后，在download代码之前。因为gel文件通常会进行一些初始化的寄存器的设置，比如memory map，PLL和DDR初始化等。所以在download之前必须初始化这些。gel文件的脚本都可以找到的。CCS5的版本可以在这个目录下找到大部分EVM的gel脚本ccsv5ccs_baseemulationboards gel脚本类似于C语言函数，就是运行一些函数。比如DDR初始化函数。如果DDR没有初始化，是无法将代码download到DDR中去的。执行gel脚本有两种，一种是用户自己执行，另一种是CCS5自动将gel脚本关联到相关的操作中，比如connect target就自动关联了初始化PLL，初始化DDR的gel函数。可以找个gel脚本看看，这样更有助于理解。】
二，调试过程
1，在client.c中设置DSP IP地址的地方：
//---------------------------------------------------------------------------
// 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 zero2,rebuild project之后连接好线。板卡需要电源线，仿真器，网线。点击view里面的Target configurations。在弹出的界面右键ccxml文件，launch selected configuration。
连接之后打印信息：
C66xx_0: GEL Output: Setup_Memory_Map...
C66xx_0: GEL Output: Setup_Memory_Map... Done.
C66xx_0: GEL Output:
Connecting Target...
C66xx_0: GEL Output: DSP core #0
C66xx_0: GEL Output: C6678L GEL file Ver is 2.005
C66xx_0: GEL Output: Global Default Setup...
C66xx_0: GEL Output: Setup Cache...
C66xx_0: GEL Output: L1P = 32K
C66xx_0: GEL Output: L1D = 32K
C66xx_0: GEL Output: L2 = ALL SRAM
C66xx_0: GEL Output: Setup Cache... Done.
C66xx_0: GEL Output: Main PLL (PLL1) Setup ...
C66xx_0: GEL Output: PLL in Bypass ...
C66xx_0: GEL Output: PLL1 Setup for DSP @ 1000.0 MHz.
C66xx_0: GEL Output: SYSCLK2 = 333.3333 MHz, SYSCLK5 = 200.0 MHz.
C66xx_0: GEL Output: SYSCLK8 = 15.625 MHz.
C66xx_0: GEL Output: PLL1 Setup... Done.
C66xx_0: GEL Output: Power on all PSC modules and DSP domains...
C66xx_0: GEL Output: Security Accelerator disabled!
C66xx_0: GEL Output: Power on all PSC modules and DSP domains... Done.
C66xx_0: GEL Output: PA PLL (PLL3) Setup ...
C66xx_0: GEL Output: PA PLL Setup... Done.
C66xx_0: GEL Output: DDR3 PLL (PLL2) Setup ...
C66xx_0: GEL Output: DDR3 PLL Setup... Done.
C66xx_0: GEL Output: DDR begin (1333 auto)
C66xx_0: GEL Output: XMC Setup ... Done
C66xx_0: GEL Output:
DDR3 initialization is complete.
C66xx_0: GEL Output: DDR done
C66xx_0: GEL Output: DDR3 memory test... Started
C66xx_0: GEL Output: DDR3 memory test... Passed
C66xx_0: GEL Output: PLL and DDR Initialization completed(0) ...
C66xx_0: GEL Output: configSGMIISerdes Setup... Begin
C66xx_0: GEL Output:
SGMII SERDES has been configured.
C66xx_0: GEL Output: Enabling EDC ...
C66xx_0: GEL Output: L1P error detection logic is enabled.
C66xx_0: GEL Output: L2 error detection/correction logic is enabled.
C66xx_0: GEL Output: MSMC error detection/correction logic is enabled.
C66xx_0: GEL Output: Enabling EDC ...Done
C66xx_0: GEL Output: Configuring CPSW ...
C66xx_0: GEL Output: Configuring CPSW ...Done
C66xx_0: GEL Output: Global Default Setup... Done.3，load .out文件，加载成功后的打印信息：
C66xx_0: GEL Output: Invalidate All Cache...
C66xx_0: GEL Output: Invalidate All Cache... Done.
C66xx_0: GEL Output: GEL Reset...
C66xx_0: GEL Output: GEL Reset... Done.
C66xx_0: GEL Output: Disable all EDMA3 interrupts and events.
三， 代码部分解析
1，client.c
/*
* ======== client.c ========
#include <stdio.h>
#include <ti/ndk/inc/netmain.h>
#include <ti/ndk/inc/_stack.h>
#include <ti/ndk/inc/tools/console.h>
#include <ti/ndk/inc/tools/servers.h>
#include "client.h"
/* BIOS6 include */
#include <ti/sysbios/BIOS.h>
/* Platform utilities include */
#include "ti/platform/platform.h"
/* Resource manager for QMSS, PA, CPPI */
#include "ti/platform/resource_mgr.h"
// When USE_OLD_SERVERS set to zero, server daemon is used
#define USE_OLD_SERVERS 0
//---------------------------------------------------------------------------
// Title String
char *VerStr = "\nTCP/IP Stack Example Client\n";
// 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 );
/* Platform Information - we will read it form the Platform Library */
platform_info gPlatformInfo;
//---------------------------------------------------------------------------
// 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
// Simulator EMAC Switch does not handle ALE_LEARN mode, so please configure the
// MAC address of the PC where you want to launch the webpages and initiate PING to NDK */
Uint8 clientMACAddress [6] = {0x5C, 0x26, 0x0A, 0x69, 0x44, 0x0B}; /* MAC address for my PC */
UINT8 DHCP_OPTIONS[] = { DHCPOPT_SERVER_IDENTIFIER, DHCPOPT_ROUTER };
#undef TEST_RAW_NC
#undef TEST_RAW_SEND
#undef TEST_RAW_RECV
#define PACKET_SIZE 1000
#define PACKET_COUNT 1
#ifdef TEST_RAW_SEND
static HANDLE hSendRaw = 0;
static void SendRawEth();
#endif
#ifdef TEST_RAW_RECV
static HANDLE hRecvRaw = 0;
static void RecvRawEth();
#endif
/*************************************************************************
* @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()
{
platform_init_flags sFlags;
platform_init_config sConfig;
/* Status of the call to initialize the platform */
int32_t pform_status;
/*
* You can choose what to initialize on the platform by setting the following
* flags. Things like the DDR, PLL, etc should have been set by the boot loader.
*/
memset( (void *) &sFlags, 0, sizeof(platform_init_flags));
memset( (void *) &sConfig, 0, sizeof(platform_init_config));
sFlags.pll = 0; /* PLLs for clocking */
sFlags.ddr = 0; /* External memory */
sFlags.tcsl = 1; /* Time stamp counter */
#ifdef _SCBP6618X_
sFlags.phy = 0; /* Ethernet */
#else
sFlags.phy = 1; /* Ethernet */
#endif
sFlags.ecc = 0; /* Memory ECC */
sConfig.pllm = 0; /* Use libraries default clock divisor */
pform_status = platform_init(&sFlags, &sConfig);
/* If we initialized the platform okay */
if (pform_status != Platform_EOK) {
/* Initialization of the platform failed... die */
while (1) {
(void) platform_led(1, PLATFORM_LED_ON, PLATFORM_USER_LED_CLASS);
(void) platform_delay(50000);
(void) platform_led(1, PLATFORM_LED_OFF, PLATFORM_USER_LED_CLASS);
(void) platform_delay(50000);
}
}
}
//---------------------------------------------------------------------
// Main Entry Point
//---------------------------------------------------------------------
int main()
{
/* Start the BIOS 6 Scheduler */
BIOS_start ();
}
//
// Main Thread
//
//
int StackTest()
{
int rc;
int i;
HANDLE hCfg;
CI_SERVICE_TELNET telnet;
CI_SERVICE_HTTP http;
QMSS_CFG_T qmss_cfg;
CPPI_CFG_T cppi_cfg;
/* Get information about the platform so we can use it in various places */
memset( (void *) &gPlatformInfo, 0, sizeof(platform_info));
(void) platform_get_info(&gPlatformInfo);
(void) platform_uart_init();
(void) platform_uart_set_baudrate(115200);
(void) platform_write_configure(PLATFORM_WRITE_ALL);
/* Clear the state of the User LEDs to OFF */
for (i=0; i < gPlatformInfo.led[PLATFORM_USER_LED_CLASS].count; i++) {
(void) platform_led(i, PLATFORM_LED_OFF, PLATFORM_USER_LED_CLASS);
}
/* Initialize the components required to run this application:
* (1) QMSS
* (2) CPPI
* (3) Packet Accelerator
*/
/* Initialize QMSS */
if (platform_get_coreid() == 0)
{
qmss_cfg.master_core = 1;
}
else
{
qmss_cfg.master_core = 0;
}
qmss_cfg.max_num_desc = MAX_NUM_DESC;
qmss_cfg.desc_size = MAX_DESC_SIZE;
qmss_cfg.mem_region = Qmss_MemRegion_MEMORY_REGION0;
if (res_mgr_init_qmss (&qmss_cfg) != 0)
{
platform_write ("Failed to initialize the QMSS subsystem \n");
goto main_exit;
}
else
{
platform_write ("QMSS successfully initialized \n");
}
/* Initialize CPPI */
if (platform_get_coreid() == 0)
{
cppi_cfg.master_core = 1;
}
else
{
cppi_cfg.master_core = 0;
}
cppi_cfg.dma_num = Cppi_CpDma_PASS_CPDMA;
cppi_cfg.num_tx_queues = NUM_PA_TX_QUEUES;
cppi_cfg.num_rx_channels = NUM_PA_RX_CHANNELS;
if (res_mgr_init_cppi (&cppi_cfg) != 0)
{
platform_write ("Failed to initialize CPPI subsystem \n");
goto main_exit;
}
else
{
platform_write ("CPPI successfully initialized \n");
}
if (res_mgr_init_pass()!= 0) {
platform_write ("Failed to initialize the Packet Accelerator \n");
goto main_exit;
}
else
{
platform_write ("PA successfully initialized \n");
}
//
// 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)\n",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\n");
goto main_exit;
}
// We better validate the length of the supplied names
if( strlen( DomainName ) >= CFG_DOMAIN_MAX ||
strlen( HostName ) >= CFG_HOSTNAME_MAX )
{
platform_write("Names too long\n");
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 defined(_SCBP6618X_) || defined(_EVMTCI6614_) || defined(DEVICE_K2H) || defined(DEVICE_K2K)
/* SCBP6618x, EVMTCI6614, EVMK2H, EVMK2K always uses DHCP */
if (0)
#else
if (!platform_get_switch_state(1))
#endif
{
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;
platform_write("Configuring DHCP client\n");
// Specify DHCP Service on IF-1
bzero( &dhcpc, sizeof(dhcpc) );
dhcpc.cisargs.Mode = CIS_FLG_IFIDXVALID;
dhcpc.cisargs.IfIdx = 1;
dhcpc.cisargs.pCbSrv = &ServiceReport;
dhcpc.param.pOptions = DHCP_OPTIONS;
dhcpc.param.len = 2;
CfgAddEntry( hCfg, CFGTAG_SERVICE, CFGITEM_SERVICE_DHCPCLIENT, 0,
sizeof(dhcpc), (UINT8 *)&dhcpc, 0 );
}
// Specify TELNET service for our Console example
bzero( &telnet, sizeof(telnet) );
telnet.cisargs.IPAddr = INADDR_ANY;
telnet.cisargs.pCbSrv = &ServiceReport;
telnet.param.MaxCon = 2;
telnet.param.Callback = &ConsoleOpen;
CfgAddEntry( hCfg, CFGTAG_SERVICE, CFGITEM_SERVICE_TELNET, 0,
sizeof(telnet), (UINT8 *)&telnet, 0 );
// Create RAM based WEB files for HTTP
AddWebFiles();
// HTTP Authentication
{
CI_ACCT CA;
// Name our authentication group for HTTP (Max size = 31)
// This is the authentication "realm" name returned by the HTTP
// server when authentication is required on group 1.
CfgAddEntry( hCfg, CFGTAG_SYSINFO, CFGITEM_SYSINFO_REALM1,
0, 30, (UINT8 *)"DSP_CLIENT_DEMO_AUTHENTICATE1", 0 );
// Create a sample user account who is a member of realm 1.
// The username and password are just "username" and "password"
strcpy( CA.Username, "username" );
strcpy( CA.Password, "password" );
CA.Flags = CFG_ACCTFLG_CH1; // Make a member of realm 1
rc = CfgAddEntry( hCfg, CFGTAG_ACCT, CFGITEM_ACCT_REALM,
0, sizeof(CI_ACCT), (UINT8 *)&CA, 0 );
}
// Specify HTTP service
bzero( &http, sizeof(http) );
http.cisargs.IPAddr = INADDR_ANY;
http.cisargs.pCbSrv = &ServiceReport;
CfgAddEntry( hCfg, CFGTAG_SERVICE, CFGITEM_SERVICE_HTTP, 0,
sizeof(http), (UINT8 *)&http, 0 );
//
// Configure IPStack/OS Options
//
// We don't want to see debug messages less than WARNINGS
rc = DBG_INFO;
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.)
//
// TCP Transmit buffer size
rc = 8192;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_SOCKTCPTXBUF,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );
// TCP Receive buffer size (copy mode)
rc = 8192;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_SOCKTCPRXBUF,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );
// TCP Receive limit (non-copy mode)
rc = 8192;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_SOCKTCPRXLIMIT,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );
// UDP Receive limit
rc = 8192;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_SOCKUDPRXLIMIT,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );
#if 0
// TCP Keep Idle (10 seconds)
rc = 100;
// This is the time a connection is idle before TCP will probe
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_TCPKEEPIDLE,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );
// TCP Keep Interval (1 second)
// This is the time between TCP KEEP probes
rc = 10;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_TCPKEEPINTVL,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );
// TCP Max Keep Idle (5 seconds)
// This is the TCP KEEP will probe before dropping the connection
rc = 50;
CfgAddEntry( hCfg, CFGTAG_IP, CFGITEM_IP_TCPKEEPMAXIDLE,
CFG_ADDMODE_UNIQUE, sizeof(uint), (UINT8 *)&rc, 0 );
#endif
//
// 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 );
// Free the WEB files
RemoveWebFiles();
// Delete Configuration
CfgFree( hCfg );
// Close the OS
main_exit:
NC_SystemClose();
return(0);
}
//
// System Task Code [ Server Daemon Servers ]
//
static HANDLE hEcho=0,hEchoUdp=0,hData=0,hNull=0,hOob=0;
#ifdef _INCLUDE_IPv6_CODE
static HANDLE hEcho6=0, hEchoUdp6=0, hTelnet6=0, hOob6=0, hWeb6=0;
#endif
static void NetworkOpen()
{
// Create our local servers
hEcho = DaemonNew( SOCK_STREAMNC, 0, 7, dtask_tcp_echo,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hEchoUdp = DaemonNew( SOCK_DGRAM, 0, 7, dtask_udp_echo,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 1 );
hData = DaemonNew( SOCK_STREAM, 0, 1000, dtask_tcp_datasrv,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hNull = DaemonNew( SOCK_STREAMNC, 0, 1001, dtask_tcp_nullsrv,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hOob = DaemonNew( SOCK_STREAMNC, 0, 999, dtask_tcp_oobsrv,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
// Create the IPv6 Local Servers.
#ifdef _INCLUDE_IPv6_CODE
hEcho6 = Daemon6New (SOCK_STREAM, IPV6_UNSPECIFIED_ADDRESS, 7, dtask_tcp_echo6,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hEchoUdp6 = Daemon6New (SOCK_DGRAM, IPV6_UNSPECIFIED_ADDRESS, 7, dtask_udp_echo6,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 1 );
hTelnet6 = Daemon6New (SOCK_STREAM, IPV6_UNSPECIFIED_ADDRESS, 23,
(int(*)(SOCKET,UINT32))telnetClientProcess, OS_TASKPRINORM, OS_TASKSTKLOW,
(UINT32)ConsoleOpen, 2 );
hOob6 = Daemon6New (SOCK_STREAM, IPV6_UNSPECIFIED_ADDRESS, 999, dtask_tcp_oobsrv,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hWeb6 = Daemon6New (SOCK_STREAM, IPV6_UNSPECIFIED_ADDRESS, HTTPPORT, httpClientProcess,
OS_TASKPRINORM, OS_TASKSTKHIGH, 0, 4);
#endif
}
static void NetworkClose()
{
DaemonFree( hOob );
DaemonFree( hNull );
DaemonFree( hData );
DaemonFree( hEchoUdp );
DaemonFree( hEcho );
#ifdef _INCLUDE_IPv6_CODE
Daemon6Free (hEcho6);
Daemon6Free (hEchoUdp6);
Daemon6Free (hTelnet6);
Daemon6Free (hOob6);
Daemon6Free (hWeb6);
#endif
#ifdef TEST_RAW_SEND
TaskDestroy (hSendRaw);
#endif
#ifdef TEST_RAW_RECV
TaskDestroy (hRecvRaw);
#endif
// Kill any active console
ConsoleClose();
}
//
// 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 )
{
static uint fAddGroups = 0;
IPN IPTmp;
if( fAdd )
platform_write("Network Added: ");
else
platform_write("Network Removed: ");
// Print a message
IPTmp = ntohl( IPAddr );
platform_write("If-%d:%d.%d.%d.%d\n", IfIdx,
(UINT8)(IPTmp>>24)&0xFF, (UINT8)(IPTmp>>16)&0xFF,
(UINT8)(IPTmp>>8)&0xFF, (UINT8)IPTmp&0xFF );
// This is a good time to join any multicast group we require
if( fAdd && !fAddGroups )
{
fAddGroups = 1;
// IGMPJoinHostGroup( inet_addr("224.1.2.3"), IfIdx );
}
/* Create a Task to send/receive Raw ethernet traffic */
#ifdef TEST_RAW_SEND
hSendRaw = TaskCreate( SendRawEth, "TxRawEthTsk", OS_TASKPRINORM, 0x1400, 0, 0, 0 );
#endif
#ifdef TEST_RAW_RECV
hRecvRaw = TaskCreate( RecvRawEth, "PerformRawRX", OS_TASKPRIHIGH, 0x1400, 0, 0, 0 );
#endif
}
//
// DHCP_reset()
//
// Code to reset DHCP client by removing it from the active config,
// and then reinstalling it.
//
// Called with:
// IfIdx set to the interface (1-n) that is using DHCP.
// fOwnTask set when called on a new task thread (via TaskCreate()).
//
void DHCP_reset( uint IfIdx, uint fOwnTask )
{
CI_SERVICE_DHCPC dhcpc;
HANDLE h;
int rc,tmp;
uint idx;
// If we were called from a newly created task thread, allow
// the entity that created us to complete
if( fOwnTask )
TaskSleep(500);
// Find DHCP on the supplied interface
for(idx=1; ; idx++)
{
// Find a DHCP entry
rc = CfgGetEntry( 0, CFGTAG_SERVICE, CFGITEM_SERVICE_DHCPCLIENT,
idx, &h );
if( rc != 1 )
goto RESET_EXIT;
// Get DHCP entry data
tmp = sizeof(dhcpc);
rc = CfgEntryGetData( h, &tmp, (UINT8 *)&dhcpc );
// If not the right entry, continue
if( (rc<=0) || dhcpc.cisargs.IfIdx != IfIdx )
{
CfgEntryDeRef(h);
h = 0;
continue;
}
// This is the entry we want!
// Remove the current DHCP service
CfgRemoveEntry( 0, h );
// Specify DHCP Service on specified IF
bzero( &dhcpc, sizeof(dhcpc) );
dhcpc.cisargs.Mode = CIS_FLG_IFIDXVALID;
dhcpc.cisargs.IfIdx = IfIdx;
dhcpc.cisargs.pCbSrv = &ServiceReport;
CfgAddEntry( 0, CFGTAG_SERVICE, CFGITEM_SERVICE_DHCPCLIENT, 0,
sizeof(dhcpc), (UINT8 *)&dhcpc, 0 );
break;
}
RESET_EXIT:
// If we are a function, return, otherwise, call TaskExit()
if( fOwnTask )
TaskExit();
}
void CheckDHCPOptions();
//
// 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 )
{
platform_write( "Service Status: %-9s: %-9s: %-9s: %03d\n",
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 );
#if 0
// We can now check on what the DHCP server supplied in
// response to our DHCP option tags.
CheckDHCPOptions();
#endif
}
// Reset DHCP client service on failure
if( Item==CFGITEM_SERVICE_DHCPCLIENT && (Report&~0xFF)==NETTOOLS_STAT_FAULT )
{
CI_SERVICE_DHCPC dhcpc;
int tmp;
// Get DHCP entry data (for index to pass to DHCP_reset).
tmp = sizeof(dhcpc);
CfgEntryGetData( h, &tmp, (UINT8 *)&dhcpc );
// Create the task to reset DHCP on its designated IF
// We must use TaskCreate instead of just calling the function as
// we are in a callback function.
TaskCreate( DHCP_reset, "DHCPreset", OS_TASKPRINORM, 0x1000,
dhcpc.cisargs.IfIdx, 1, 0 );
}
}
void CheckDHCPOptions()
{
char IPString[16];
IPN IPAddr;
int i, rc;
// Now scan for DHCPOPT_SERVER_IDENTIFIER via configuration
platform_write("\nDHCP Server ID:\n");
for(i=1;;i++)
{
// Try and get a DNS server
rc = CfgGetImmediate( 0, CFGTAG_SYSINFO, DHCPOPT_SERVER_IDENTIFIER,
i, 4, (UINT8 *)&IPAddr );
if( rc != 4 )
break;
// We got something
// Convert IP to a string:
NtIPN2Str( IPAddr, IPString );
platform_write("DHCP Server %d = '%s'\n", i, IPString);
}
if( i==1 )
platform_write("None\n\n");
else
platform_write("\n");
// Now scan for DHCPOPT_ROUTER via the configuration
platform_write("Router Information:\n");
for(i=1;;i++)
{
// Try and get a DNS server
rc = CfgGetImmediate( 0, CFGTAG_SYSINFO, DHCPOPT_ROUTER,
i, 4, (UINT8 *)&IPAddr );
if( rc != 4 )
break;
// We got something
// Convert IP to a string:
NtIPN2Str( IPAddr, IPString );
platform_write("Router %d = '%s'\n", i, IPString);
}
if( i==1 )
platform_write("None\n\n");
else
platform_write("\n");
}
#ifdef TEST_RAW_SEND
/* Routine to demonstrate sending raw ethernet packets using
* send() / sendnc() APIs and AF_RAWETH family socket.
*/
static void SendRawEth()
{
char* pBuffer = NULL;
ETHHDR* ptr_eth_header;
UINT32 rawether_type = 0x300, rawchannel_num = 0;
UINT8 src_mac[6], dst_mac[6], bData[20];
int i, j, val, bytes, retVal;
SOCKET sraw = INVALID_SOCKET;
#ifdef TEST_RAW_NC
PBM_Handle hPkt = NULL;
#endif
/* Allocate the file environment for this task */
fdOpenSession( TaskSelf() );
/* wait for the ethernet link to come up. */
TaskSleep(20000);
platform_write("Raw Eth Task Started ... \n");
/* Demonstrating use of SO_PRIORITY to configure
* custom properties for all packets travelling
* using this socket.
*
* Here, in this example we will use it for
* configuring a distinct EMAC channel number for each
* of the raw ethernet sockets.
*
* For example, Channel Assignment:
* Chan 0 - IP
* Chan 3 - Raw
*/
rawchannel_num = 3;
/* Create the raw ethernet socket */
sraw = socket(AF_RAWETH, SOCK_RAWETH, rawether_type);
if( sraw == INVALID_SOCKET )
{
platform_write("Fail socket, %d\n", fdError());
fdCloseSession (TaskSelf());
return;
}
/* Configure the transmit device */
val = 1;
retVal = setsockopt(sraw, SOL_SOCKET, SO_IFDEVICE, &val, sizeof(val));
if(retVal)
platform_write("error in setsockopt \n");
/* Configure the EMAC channel number */
val = rawchannel_num;
retVal = setsockopt(sraw, SOL_SOCKET, SO_PRIORITY, &val, sizeof(val));
if(retVal)
platform_write("error in setsockopt \n");
/* Send the RAW eth packets out */
for(j = 0; j < PACKET_COUNT; j++)
{
#ifndef TEST_RAW_NC
if ((pBuffer = mmAlloc (sizeof(char) * PACKET_SIZE)) == NULL)
{
platform_write("OOM ?? \n");
TaskExit();
}
#else
if(getsendncbuff(sraw, PACKET_SIZE, (void **) &pBuffer, &hPkt))
{
platform_write("Error: Raw Eth getsendncbuff failed Error:%d\n", fdError());
fdCloseSession( TaskSelf() );
fdClose(sraw);
TaskExit();
}
#endif
/* Configure the Source MAC, Destination MAC, Protocol and Payload */
for (i = 0; i < 6; i++)
{
src_mac[i] = 0x10 + i;
}
for (i = 0; i < 6; i++)
dst_mac[i] = 0x20 + i + 2;
for (i = 0; i < 20; i++)
bData[i] = 0x60 + i;
ptr_eth_header = (ETHHDR*)pBuffer;
/* Copy the source MAC address as is. */
mmCopy (ptr_eth_header->SrcMac, src_mac, 6);
/* Copy the destination MAC address as is. */
mmCopy (ptr_eth_header->DstMac, dst_mac, 6);
/* Configure the type in network order. */
ptr_eth_header->Type = HNC16(rawether_type);
/* Copy over the payload to the buffer */
mmCopy(pBuffer + ETHHDR_SIZE, bData, 20);
#ifndef TEST_RAW_NC
/* Send the packet using the copy version of send() API. */
bytes = send(sraw, (char *)pBuffer, PACKET_SIZE, 0);
#else
/* Use the no-copy version of send, sendnc() to send out the data */
bytes = sendnc(sraw, (char *)pBuffer, PACKET_SIZE, hPkt, 0);
#endif
#ifndef TEST_RAW_NC
/* If we allocated the buffer, free it up. If we used up the sendnc()
* API, the buffer will be freed up by the stack.
*/
mmFree(pBuffer);
#endif
if( bytes < 0 )
{
platform_write("Error: Raw Eth Send failed Error:%d\n", fdError());
#ifdef TEST_RAW_NC
sendncfree(hPkt);
#endif
fdCloseSession( TaskSelf() );
fdClose(sraw);
TaskExit();
}
}
platform_write("Raw Eth Task Ended ... \n");
fdClose(sraw);
/* Close the session & kill the task */
fdCloseSession( TaskSelf() );
TaskExit();
}
#endif
#ifdef TEST_RAW_RECV
/* Routine to demonstrate packet receive using recvnc() API
* and AF_RAWETH family sockets.
*/
static void RecvRawEth()
{
SOCKET sraw;
INT32 val,retVal, count = 0, bytes;
char* pBuf;
HANDLE hBuffer;
UINT32 rawchannel_num;
ETHHDR* ptr_eth_header;
platform_write ("Raw Eth Rx Task has been started\n");
/* Allocate the file environment for this task */
fdOpenSession( TaskSelf() );
/* Demonstrating use of SO_PRIORITY to configure
* custom properties for all packets travelling
* using this socket.
*
* Here, in this example we will use it for
* configuring a distinct EMAC channel number for each
* of the raw ethernet sockets.
*
* For example, Channel Assignment:
* Chan 0 - IP
* Chan 3 - Raw
*/
rawchannel_num = 3;
/* Create the main UDP listen socket */
sraw = socket(AF_RAWETH, SOCK_RAWETH, 0x300);
if( sraw == INVALID_SOCKET )
return;
/* Configure the transmit device */
val = 1;
retVal = setsockopt(sraw, SOL_SOCKET, SO_IFDEVICE, &val, sizeof(val));
if(retVal)
platform_write("error in setsockopt \n");
/* Configure the EMAC channel number as the priority tag for packets */
val = rawchannel_num;
retVal = setsockopt(sraw, SOL_SOCKET, SO_PRIORITY, &val, sizeof(val));
if(retVal)
platform_write("error in setsockopt \n");
/* Configure the Receive buffer size */
val = 1000;
retVal = setsockopt(sraw, SOL_SOCKET, SO_RCVBUF, &val, sizeof(val));
if(retVal)
platform_write("error in setsockopt \n");
while (count < PACKET_COUNT)
{
bytes = (int)recvnc( sraw, (void **)&pBuf, 0, &hBuffer );
if (bytes < 0)
{
/* Receive failed: Close the session & kill the task */
platform_write("Receive failed after packets Error:%d\n",fdError());
fdCloseSession( TaskSelf() );
TaskExit();
}
else
{
ptr_eth_header = (ETHHDR*)pBuf;
platform_write("Received RAW ETH packet, len: %d \n", PBM_getValidLen((PBM_Handle)hBuffer));
platform_write("Dst MAC Address = %02x-%02x-%02x-%02x-%02x-%02x Src MAC Address = %02x-%02x-%02x-%02x-%02x-%02x Eth Type = %d Data = %s \n",
ptr_eth_header->DstMac[0],ptr_eth_header->DstMac[1],ptr_eth_header->DstMac[2],
ptr_eth_header->DstMac[3],ptr_eth_header->DstMac[4],ptr_eth_header->DstMac[5],
ptr_eth_header->SrcMac[0],ptr_eth_header->SrcMac[1],ptr_eth_header->SrcMac[2],
ptr_eth_header->SrcMac[3],ptr_eth_header->SrcMac[4],ptr_eth_header->SrcMac[5],
ntohs(ptr_eth_header->Type), (pBuf + ETHHDR_SIZE));
}
count++;
/* Clean out the buffer */
recvncfree( hBuffer );
}
/* Close the session & kill the task */
fdCloseSession( TaskSelf() );
TaskExit();
return;
}
#endif
2，在main函数中执行BIOS_start()，并创建进程StackTest()
int main()
{
/* Start the BIOS 6 Scheduler */
BIOS_start ();
}3，首先执行EVM_init()函数，也就是在main()函数之前执行，具体设置在一个*.cfg文件中
void EVM_init()
{
platform_init_flags sFlags;
platform_init_config sConfig;
/* Status of the call to initialize the platform */
int32_t pform_status;
/*
* You can choose what to initialize on the platform by setting the following
* flags. Things like the DDR, PLL, etc should have been set by the boot loader.
*/
memset( (void *) &sFlags, 0, sizeof(platform_init_flags));
memset( (void *) &sConfig, 0, sizeof(platform_init_config));
sFlags.pll = 0; /* PLLs for clocking */
sFlags.ddr = 0; /* External memory */
sFlags.tcsl = 1; /* Time stamp counter */
#ifdef _SCBP6618X_
sFlags.phy = 0; /* Ethernet */
#else
sFlags.phy = 1; /* Ethernet */
#endif
sFlags.ecc = 0; /* Memory ECC */
sConfig.pllm = 0; /* Use libraries default clock divisor */
pform_status = platform_init(&sFlags, &sConfig);
/* If we initialized the platform okay */
if (pform_status != Platform_EOK) {
/* Initialization of the platform failed... die */
while (1) {
(void) platform_led(1, PLATFORM_LED_ON, PLATFORM_USER_LED_CLASS);
(void) platform_delay(50000);
(void) platform_led(1, PLATFORM_LED_OFF, PLATFORM_USER_LED_CLASS);
(void) platform_delay(50000);
}
}
}4，完成相应配置后启动NetworkOpen服务后，关联了dtask_udp_hello任务，等待UDP连接，并执行相关操作
static void NetworkOpen()
{
// Create our local servers
hEcho = DaemonNew( SOCK_STREAMNC, 0, 7, dtask_tcp_echo,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hEchoUdp = DaemonNew( SOCK_DGRAM, 0, 7, dtask_udp_echo,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 1 );
hData = DaemonNew( SOCK_STREAM, 0, 1000, dtask_tcp_datasrv,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hNull = DaemonNew( SOCK_STREAMNC, 0, 1001, dtask_tcp_nullsrv,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hOob = DaemonNew( SOCK_STREAMNC, 0, 999, dtask_tcp_oobsrv,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
// Create the IPv6 Local Servers.
#ifdef _INCLUDE_IPv6_CODE
hEcho6 = Daemon6New (SOCK_STREAM, IPV6_UNSPECIFIED_ADDRESS, 7, dtask_tcp_echo6,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hEchoUdp6 = Daemon6New (SOCK_DGRAM, IPV6_UNSPECIFIED_ADDRESS, 7, dtask_udp_echo6,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 1 );
hTelnet6 = Daemon6New (SOCK_STREAM, IPV6_UNSPECIFIED_ADDRESS, 23,
(int(*)(SOCKET,UINT32))telnetClientProcess, OS_TASKPRINORM, OS_TASKSTKLOW,
(UINT32)ConsoleOpen, 2 );
hOob6 = Daemon6New (SOCK_STREAM, IPV6_UNSPECIFIED_ADDRESS, 999, dtask_tcp_oobsrv,
OS_TASKPRINORM, OS_TASKSTKNORM, 0, 3 );
hWeb6 = Daemon6New (SOCK_STREAM, IPV6_UNSPECIFIED_ADDRESS, HTTPPORT, httpClientProcess,
OS_TASKPRINORM, OS_TASKSTKHIGH, 0, 4);
#endif
}