C6748 ENET_ECHO例程烧写后网络起不来

C6748 的CMD中区都是放在DDR2中，ENET_ECHO例程烧写到NOR或NAND都没问题，网络正常。

发现运行速度慢，尝试CMD修改放到RAM中运行，仿真器可以跑，但是烧写到NOR或NAND后网络都起不来（创龙开发板）。

求助有办法或有尝试过的吗？

Nancy Wang：

将CMD修改到RAM上的时候请按以下帖子里method1提供的CMD文件修改并烧写。
e2e.ti.com/…/439030

user5012922：

回复 Nancy Wang:

您好，感谢您的回复，如您所说将如下CMD加入工程，仿真器运行ENET_ECHO原始工程，采用静态IP，网络连接不上,改回原来CMD可以。

然后烧写到NOR中测试，同样网络连接不上。

请问有没有其他需要注意的项？

//C6748_RAM.cmd

// ============================================================================// Linker Command File for Linking c674 DSP Programs//// These linker options are for command line linking only. For IDE linking,// you should set your linker options in Project Properties.//-cLink Using C Conventions//-stack0x1000Software Stack Size//-heap0x1000Heap Area Size// ===========================================================================-stack 0x1000-heap 0x1000// ============================================================================//Specify the System Memory Map// ============================================================================MEMORY{L1P:o = 0x11E00000l = 0x00008000L1D:o = 0x11F00000l = 0x00008000L2:o = 0x11800000l = 0x00040000DDR:o = 0xC0000000l = 0x08000000}// ============================================================================//Specify the Sections Allocation into Memory// ============================================================================SECTIONS{.cinit>L2// Initialization Tables.pinit>L2// Constructor Tables.init_array>L2//.binit>L2// Boot Tables.const>L2// Constant Data.switch>L2// Jump Tables.text>L2// Executable Code.text:_c_int00: align=1024 > L2// EntrypointGROUP (NEARDP_DATA)// group near data{.neardata.rodata.bss// note: removed fill = 0}>L2.far: fill = 0x0, load > L2// Far Global & Static Variables.fardata>L2// Far RW Data.stack>L2// Software System Stack.sysmem>L2// Dynamic Memory Allocation Area.cio>L2// C I/O Buffer.vecs>L2// Interrupt Vectors}

user5012922：

回复 Nancy Wang:

您好，感谢您的回复，如您所说将如下CMD加入工程，仿真器运行ENET_ECHO原始工程，采用静态IP，网络连接不上,改回原来CMD可以。
然后烧写到NOR中测试，同样网络连接不上。

请问有没有其他需要注意的项？

//C6748_RAM.cmd
// ============================================================================

// Linker Command File for Linking c674 DSP Programs

//

// These linker options are for command line linking only. For IDE linking,

// you should set your linker options in Project Properties.

//-cLink Using C Conventions

//-stack0x1000Software Stack Size

//-heap0x1000Heap Area Size

// ===========================================================================

-stack 0x1000

-heap 0x1000

// ============================================================================

//Specify the System Memory Map

// ============================================================================

MEMORY

{
L1P:o = 0x11E00000l = 0x00008000
L1D:o = 0x11F00000l = 0x00008000
L2:o = 0x11800000l = 0x00040000
DDR:o = 0xC0000000l = 0x08000000

}

// ============================================================================

//Specify the Sections Allocation into Memory

// ============================================================================

SECTIONS

{
.cinit>L2// Initialization Tables
.pinit>L2// Constructor Tables
.init_array>L2//
.binit>L2// Boot Tables
.const>L2// Constant Data
.switch>L2// Jump Tables
.text>L2// Executable Code
.text:_c_int00: align=1024 > L2// Entrypoint
GROUP (NEARDP_DATA)// group near data
{
.neardata
.rodata
.bss// note: removed fill = 0
}>L2
.far: fill = 0x0, load > L2// Far Global & Static Variables
.fardata>L2// Far RW Data
.stack>L2// Software System Stack
.sysmem>L2// Dynamic Memory Allocation Area
.cio>L2// C I/O Buffer
.vecs>L2// Interrupt Vectors

}