根据instructions，我正试图在Altera DE2-115 FPGA上运行Linux。显然，第一部分起作用：
$ quartus_pgm -m jtag -c USB-Blaster[2-2] -o "p;tPad_Selector.sof"
Info: *******************************************************************
Info: Running Quartus Prime Programmer
Info: Version 16.1.0 Build 196 10/24/2016 SJ Lite Edition
Info: Copyright (C) 2016 Intel Corporation. All rights reserved.
Info: Your use of Intel Corporation's design tools, logic functions
Info: and other software and tools, and its AMPP partner logic
Info: functions, and any output files from any of the foregoing
Info: (including device programming or simulation files), and any
Info: associated documentation or information are expressly subject
Info: to the terms and conditions of the Intel Program License
Info: Subscription Agreement, the Intel Quartus Prime License Agreement,
Info: the Intel MegaCore Function License Agreement, or other
Info: applicable license agreement, including, without limitation,
Info: that your use is for the sole purpose of programming logic
Info: devices manufactured by Intel and sold by Intel or its
Info: authorized distributors. Please refer to the applicable
Info: agreement for further details.
Info: Processing started: Mon Mar 13 17:10:04 2017
Info: Command: quartus_pgm -m jtag -c USB-Blaster[2-2] -o p;tPad_Selector.sof
Info (213045): Using programming cable "USB-Blaster [2-2]"
Inconsistency detected by ld.so: dl-close.c: 811: _dl_close: Assertion `map->l_init_called' failed!
Info (213011): Using programming file tPad_Selector.sof with checksum 0x00BBDF04 for device EP4CE115F29@1
Info (209060): Started Programmer operation at Mon Mar 13 17:10:05 2017
Info (209016): Configuring device index 1
Info (209017): Device 1 contains JTAG ID code 0x020F70DD
Info (209007): Configuration succeeded -- 1 device(s) configured
Info (209011): Successfully performed operation(s)
Info (209061): Ended Programmer operation at Mon Mar 13 17:10:11 2017
Info: Quartus Prime Programmer was successful. 0 errors, 0 warnings
Info: Peak virtual memory: 453 megabytes
Info: Processing ended: Mon Mar 13 17:10:11 2017
Info: Elapsed time: 00:00:07
Info: Total CPU time (on all processors): 00:00:01
然后我会遇到一些我不明白的问题：
$ nios2-flash-programmer --epcs --base=0x0a001800 tPad_Selector.flash
Using cable "USB-Blaster [2-2]", device 1, instance 0x00
Resetting and pausing target processor:
OK
No EPCS layout data - looking for section [EPCS-010216]
Unable to use EPCS device
Leaving target processor paused
我在Altera论坛上搜索了一下，不明白。我该怎么办？
我已经用3个分区格式化了SD卡：ext3、fat和swap。可能是SD卡不兼容，或者是什么原因？
调试输出：
$ nios2-flash-programmer --epcs --debug --base=0x0a001800 tPad_Selector.flash
Using cable "USB-Blaster [2-2]", device 1, instance 0x00
Resetting and pausing target processor:
OK
Processor data bus width is 32 bits
Looking for EPCS registers at address 0x0A001800 (with 32bit alignment)
Initial values: 0001703A 04C00074 9801483A 9CFFF804 1CE7FF8983FFD1E 0000203A
Not here: reserved fields are non-zero
Looking for EPCS registers at address 0x0A001900 (with 32bit alignment)
Initial values: 92400237 4A40100C 483FFD26 90000135 1CE7FF892400237 4A40200C
Not here: reserved fields are non-zero
Looking for EPCS registers at address 0x0A001A00 (with 32bit alignment)
Initial values: 108001C4 1004D0FA 002EE03A 003F9C06 1CE7FF8002EE03A 003F9506
Not here: reserved fields are non-zero
Looking for EPCS registers at address 0x0A001B00 (with 32bit alignment)
Initial values: 00000000 00000000 00000000 00000000 1CE7FF800000000 00000000
Not here: SPI_SLAVE_SEL has 0 valid bits (should be between 1 and 16)
Looking for EPCS registers at address 0x0A001C00 (with 32bit alignment)
Initial values: 00000000 00000000 00000260 00000000 1CE7FF800000000 00000001
Valid registers found
EPCS signature is 0x16
EPCS identifier is 0x010216
No EPCS layout data - looking for section [EPCS-010216]
Unable to use EPCS device
Leaving target processor paused
最佳答案
您的指令（不是针对DE2-115，而是针对另一个板）给出了错误的指令：
No EPCS layout data - looking for section [EPCS-010216] .
http://www.alterawiki.com/wiki/Linux_with_MMU_on_VEEK/t-Pad#Unfortunately.2C_if_you_don.27t_have_VEEK.2Ft-PAD_kit.2C_but_you_have_DE2-115。。。
注意：当您执行“nios2 flash programmer”命令时，可能会出现如下错误
无EPCS布局数据-正在查找截面[EPCS-010216]。
在这种情况下，请参阅Altera论坛页面上的“nios2 flash programmer”或第23页“Nios II flash programmer用户指南”中的“A.非标准闪存”部分。
你查过“Nios II Flash程序员用户指南”吗？
使用中的程序
在本节中，您需要使用的闪存设备的数据表。确保你完全
了解设备的CFI方面。
一些CFI闪存设备包含丢失或不正确的CFI表信息。在这种情况下
Nios II Flash程序员可能会因为CFI表中的错误信息而失败。为了这些
设备，Nios II Flash程序员提供了以下方法来覆盖CFI表和
成功编程闪存。。。
始终尝试使用内置识别和
在尝试创建覆盖文件之前覆盖。确定flash程序员是否能识别
在设备上，使用
--debug选项从命令行运行flash编程器。如果闪光编程器重写CFI表，flash编程器显示一条消息“Override data for this device is build in”。
原始VEEK/T-pad和DE2-115板上的闪存设备是什么？
nios2-flash-programmer --epcs --debug --base=0x0a001800 tPad_Selector.flash命令输出什么？关于linux - 具有Altera DE2-115的Linux，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/42768455/