hi When I work with the xilinx edk(ver8.1), after buttoning down th ? download bitstream?, I want to make a bootloader from the externa flash ,but a problem still baffles me all the time, when I pressed th ?program flash memory?, here is the context showed to me..------------- At Local date and time: Mon Aug 28 09:39:00 2006 xmd -tcl flashwriter.tcl started... Xilinx Microprocessor Debug (XMD) Engine Xilinx EDK 8.1.02 Build EDK_I.20.4 Copyright (c) 1995-2005 Xilinx, Inc. All rights reserved. Executing xmd script : C:/EDK/data/xmd/flashwriter.tcl Flashwriter starting... Connecting to target... Connecting to cable (Parallel Port - LPT1). Checking cable driver. Driver windrvr6.sys version = 7.0.0.0. LPT base address = 0378h. ECP base address = 0778h. Cable connection established.
JTAG chain configuration
-------------------------------------------------- Device ID Code IR Length Part Name
1 0127e093 14 XC2VP30 2 05058093 16 XCF16PXMD: Connected to PowerPC target. Processor Version No : 0x200108a0 Address mapping for accessing special PowerPC features from XMD/GDB: I-Cache (Data) : Disabled I-Cache (Tag) : Disabled D-Cache (Data) : Disabled D-Cache (Tag) : Disabled ISOCM : Start Address - 0x24800000, Size - 16384 bytes TLB : Disabled DCR : Disabled
INFO:MDT - Assumption: Selected Device 1 for debugging.
Connected to "ppc" target. id = 0 Starting GDB server for "ppc" target (id = 0) at TCP port no 1234 done. Opening image file to be programmed...done. Setting up Flashwriter sources for compilation -- Copying flashwriter sources from C:/EDK/data/xmd/flashwriter/src t ./etc/flashwriter/src...done. Compiling flashwriter (CFI Query Mode)... done. Target reset successfully Downloading flashwriter to memory... section, .text: 0xfffe0000-0xfffe0cec section, .init: 0xfffe0cec-0xfffe0d10 section, .fini: 0xfffe0d10-0xfffe0d30 section, .sdata2: 0xfffe0d30-0xfffe0d30 section, .sbss2: 0xfffe0d30-0xfffe0d30 section, .data: 0xfffe0d30-0xfffe0f20 section, .gcc_except_table: 0xfffe0f20-0xfffe0f20 section, .eh_frame: 0xfffe0f20-0xfffe0f28 section, .jcr: 0xfffe0f28-0xfffe0f2c section, .fixup: 0xfffe0f2c-0xfffe0f2c section, .got1: 0xfffe0f2c-0xfffe0f2c section, .got2: 0xfffe0f2c-0xfffe0f48 section, .ctors: 0xfffe0f48-0xfffe0f50 section, .dtors: 0xfffe0f50-0xfffe0f58 section, .got: 0xfffe0f58-0xfffe0f58 section, .sdata: 0xfffe0f58-0xfffe0f70 section, .sbss: 0xfffe0f70-0xfffe0f80 section, .bss: 0xfffe0f80-0xfffe13b0
Downloaded Program ./etc/flashwriter/flashwriter.elf
Setting PC with program start addr = 0xfffe0000
PC reset to 0xfffe0000, Clearing MSR Register done.
./etc/flashwriter/flashwriter.elf :: rcvptr(0xfffe0f6c): 0xfffe0d38
./etc/flashwriter/flashwriter.elf :: sndptr(0xfffe0f68): 0xfffe0d4c
./etc/flashwriter/flashwriter.elf :: membufptr(0xfffe0f58): 0xfffe0f70
./etc/flashwriter/flashwriter.elf :: membufsiz(0xfffe0f5c): 0x00000004 Setting breakpoint at 0xfffe01c4 Performing CFI Query on the flash part(s)...Processor started. Type "stop" to stop processor
XMD% ERROR: Flashwriter application reported an error: Unable to quer target part layout!
Processor started. Type "stop" to stop processor Flashwriter terminating !
Done!
What causes this problem? And What should I do to solve the problem? The flash I use is AM29LV040B-70JC.thanks