why my programm has no response after i added some opb_bram_if

I try to use some opb_bram to store data as SDRAM, so i add three opb_bram_if_ctrl core when i create the project, and then i set the all programm's sections into LMB_BRAM,the linker script is : /*******************************************************************/ /* */ /* This file is automatically generated by linker script generator.*/ /* */ /* Version: Xilinx EDK 6.3EDK_Gmm.10

*/ /* */ /* Copyright (c) 2004 Xilinx, Inc. All rights reserved. */ /* */ /* Description : MicroBlaze Linker Script */ /* */ /*******************************************************************/

_STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 0x400; _HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 0x400;

/* Define Memories in the system */

MEMORY { opb_bram_if_cntlr_3 : ORIGIN = 0x88000000, LENGTH = 0x0000FFFF opb_bram_if_cntlr_2 : ORIGIN = 0x88010000, LENGTH = 0x0000FFFF opb_bram_if_cntlr_1 : ORIGIN = 0x88020000, LENGTH = 0x0000FFFF SDRAM_8Mx32_2 : ORIGIN = 0x8A000000, LENGTH = 0x01FFFFFF SDRAM_8Mx32_1 : ORIGIN = 0x8C000000, LENGTH = 0x01FFFFFF ilmb_cntlr_dlmb_cntlr : ORIGIN = 0x00000000, LENGTH = 0x0000FFFF }

/* Specify the default entry point to the program */

ENTRY(_start)

/* Define the sections, and where they are mapped in memory */

SECTIONS { .text : { __text_start = .; *(.text) *(.text.*) *(.gnu.linkonce.t*) __text_end = .; } > ilmb_cntlr_dlmb_cntlr

.rodata : { __rodata_start = .; *(.rodata) *(.rodata.*) *(.gnu.linkonce.r*) __rodata_end = .; } > ilmb_cntlr_dlmb_cntlr

.sdata2 : { . = ALIGN(8); __sdata2_start = .; *(.sdata2) . = ALIGN(8); __sdata2_end = .; } > ilmb_cntlr_dlmb_cntlr

.sbss2 : { __sbss2_start = .; *(.sbss2) __sbss2_end = .; } > ilmb_cntlr_dlmb_cntlr

.data : { . = ALIGN(4); __data_start = .; *(.data) *(.data.*) *(.gnu.linkonce.d*) __data_end = .; } >ilmb_cntlr_dlmb_cntlr

.sdata : { . = ALIGN(8); __sdata_start = .; *(.sdata) __sdata_end = .; } > ilmb_cntlr_dlmb_cntlr

.sbss : { . = ALIGN(4); __sbss_start = .; *(.sbss) . = ALIGN(8); __sbss_end = .; } > ilmb_cntlr_dlmb_cntlr

.bss : { . = ALIGN(4); __bss_start = .; *(.bss) *(COMMON) . = ALIGN(4); __bss_end = .; } > ilmb_cntlr_dlmb_cntlr

PROVIDE (_SDA_BASE_ = __sdata_start + (__sbss_end - __sdata_start / 2 ));

PROVIDE (_SDA2_BASE_ = __sdata2_start + (__sbss2_end - __sdata2_start /

2 ));

/* Generate Stack and Heap definitions */

bss_stack : { . = ALIGN(8); _heap = .; _heap_start = _heap; . += _HEAP_SIZE; . += _STACK_SIZE; . = ALIGN(8); _stack = .; __stack = _stack; } > ilmb_cntlr_dlmb_cntlr

}

But my programm has not any response after i downloaded it into FPGA. Can you tell me the reason? How can i change it? Any advice is appreciated!!!!!!

schrieb im Newsbeitrag news: snipped-for-privacy@g44g2000cwa.googlegroups.com...

[snip]

you are using a device with 256 KBYTE of available BRAMs `!? thats pretty huge FPGA, and doesnt cost peanuts!

your linker script is not ok! just get the manuals for GNU linker and read them, and again and again. then fix the linker script its boring stuff, but there is no way around it, if you are modifying the linker scripts you need to know what you are doing, not just typing something into it hoping it will all work. it want.

and verify that your design matches the fpga configuration, do really have all that 256 KBYTE of BRAMs there? its possible of course in real big V2 or V4, but usually its better idea to use the external memories and small bootloader in BRAM

antti

why my programm has no response after i added some opb_bram_if_ctrl core my project?