【求助】NIOS ii 中CFI模块时序参数设置？
在Nios中设置CFI模块的参数。请教一下CFI模块的三个参数到底是如何计算的？
setup--片选有效后，发起读或写信号之前所需的时间。
wait--对每次传送，使能读/写信号所需的时间。
hold--写信号无效后，使片选无效之前所需的时间。
http://cache.amobbs.com/bbs_upload782111/files_49/ourdev_703956EUBBY3.png
(原文件名:s29gl256.png)
http://cache.amobbs.com/bbs_upload782111/files_49/ourdev_703957CI374T.png
(原文件名:timing.png)
手册ourdev_703958N2PR3A.pdf(文件大小:1.54M) (原文件名:S29GL256P11TFI020.pdf) 高手给指条明路啊。
./emotion/em103.gif 一直出现这个错误！
#!/bin/sh
#
# This file was automatically generated by the Nios II IDE Flash Programmer.
#
# It will be overwritten when the flash programmer options change.
#
cd G:/EP2C35/flash/flash_ide/hello_world/hello_world/Debug
# Creating .flash file for the FPGA configuration
"$SOPC_KIT_NIOS2/bin/sof2flash" --epcs --input="G:/EP2C35/flash/flash_sopc/flash
_sopc.sof" --output="flash_sopc.flash"
Info: *******************************************************************
Info: Running Quartus II Convert_programming_file
Info: Command: quartus_cpf --no_banner --convert --device=EPCS128 --option=flash
_sopc.opt G:/EP2C35/flash/flash_sopc/flash_sopc.sof flash_sopc.pof
Info: Quartus II Convert_programming_file was successful. 0 errors, 0 warnings
Info: Peak virtual memory: 71 megabytes
Info: Processing ended: Mon Dec 12 17:28:22 2011
Info: Elapsed time: 00:00:02
Info: Total CPU time (on all processors): 00:00:02
Info: *******************************************************************
Info: Running Quartus II Convert_programming_file
Info: Command: quartus_cpf --no_banner --convert flash_sopc.pof flash_sopc.rpd
Info: Quartus II Convert_programming_file was successful. 0 errors, 0 warnings
Info: Peak virtual memory: 68 megabytes
Info: Processing ended: Mon Dec 12 17:28:24 2011
Info: Elapsed time: 00:00:02
Info: Total CPU time (on all processors): 00:00:02
# Programming flash with the FPGA configuration
"$SOPC_KIT_NIOS2/bin/nios2-flash-programmer" --epcs --base=0x04000000 --sidp=0x0
4001818 --id=1515470202 --timestamp=1323681187"flash_sopc.flash"
Using cable "USB-Blaster ", device 1, instance 0x00
Resetting and pausing target processor: OK
Reading System ID at address 0x04001818: verified
: Checksumming existing contents
00000000 : Verifying existing contents
00010000 : Verifying existing contents
00020000 : Verifying existing contents
00030000 : Verifying existing contents
00040000 : Verifying existing contents
00000000 : Reading existing contents
00010000 : Reading existing contents
00020000 : Reading existing contents
00030000 : Reading existing contents
00040000 : Reading existing contents
Checksummed/read 31kB in 3.3s
00000000 ( 0%): Erasing
00010000 (20%): Erasing
00020000 (40%): Erasing
00030000 (60%): Erasing
00040000 (80%): Erasing
Erased 320kB in 3.1s (103.2kB/s)
00000000 ( 0%): Programming
00010000 (20%): Programming
00020000 (40%): Programming
00030000 (60%): Programming
00040000 (80%): Programming
Programmed 290KB +30KB in 39.8s (8.0KB/s)
Did not attempt to verify device contents
Leaving target processor paused
# Creating .flash file for the project
"$SOPC_KIT_NIOS2/bin/elf2flash" --base=0x00000000 --end=0x3ffffff --reset=0x0 --
input="hello_world.elf" --output="cfi_flash.flash" --boot="C:/altera/81/ip/alter
a/nios2_ip/altera_nios2/boot_loader_cfi.srec"
# Programming flash with the project
"$SOPC_KIT_NIOS2/bin/nios2-flash-programmer" --base=0x00000000 --sidp=0x04001818
--id=1515470202 --timestamp=1323681187"cfi_flash.flash"
Using cable "USB-Blaster ", device 1, instance 0x00
Resetting and pausing target processor: OK
Reading System ID at address 0x04001818: verified
No CFI table found at address 0x00000000
Leaving target processor paused 已经解决。原来是硬件的问题。
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