Altera Stratix IV GX FPGA Manuale Utente Scaricare il pdf (Pagina 50)

A–2 Chapter :

Preparing Design Files for Flash Programming

Stratix IV GX FPGA Development Kit User Guide March 2014 Altera Corporation

c Altera recommends that you do not overwrite the factory hardware and factory

software images unless you are an expert with the Altera tools. If you unintentionally

overwrite the factory hardware or factory software image, refer to “Restoring the

Flash Device to the Factory Settings” on page A–4.

Preparing Design Files for Flash Programming

You can obtain designs containing prepared .flash files from the Stratix IV GX FPGA

Development Kit page of the Altera website or create .flash files from your own

custom design.

The Nios II EDS sof2flash command line utility converts your Quartus II-compiled

.sof into the .flash format necessary for the flash device. Similarly, the Nios II EDS

elf2flash command line utility converts your compiled and linked Executable and

Linking Format File (.elf) software design to .flash. After your design files are in the

.flash format, use the Board Update Portal or the Nios II EDS nios2-flash-

programmer utility to write the .flash files to the user hardware and user software

locations of the flash memory.

f For more information about Nios II EDS software tools and practices, refer to the

Embedded Software Development page of the Altera website.

Creating Flash Files Using the Nios II EDS

If you have an FPGA design developed using the Quartus II software, and software

developed using the Nios II EDS, follow these instructions:

1. On the Windows Start menu, click All Programs > Altera > Nios II EDS > Nios II

Command Shell.

2. In the Nios II command shell, navigate to the directory where your design files

reside and type the following Nios II EDS commands:

■ For Quartus II .sof files:

sof2flash --input=<yourfile>_hw.sof --output=<yourfile>_hw.flash --offset=0x00C20000

--pfl --optionbit=0x00018000 --programmingmode=PSr

■ For Nios II .elf files:

elf2flash --base=0x08000000 --end=0x0BFFFFFF --reset=0x08820000

--input=<yourfile>_sw.elf --output=<yourfile>_sw.flash

--boot=$SOPC_KIT_NIOS2/components/altera_nios2/

boot_loader_sources/boot_loader_cfi.srecr

1 For boards with dual-die CFI flash devices, use

--base=0x0A000000

only

when programming sw.flash. Continue to use

--base=0x08000000

for

hw.flash. For more information, refer to the Board Revision History appendix

of the Stratix IV GX FPGA Development Board Reference Manual.

The resulting .flash files are ready for flash device programming. If your design uses

additional files such as image data or files used by the runtime program, you must

first convert the files to .flash format and concatenate them into one .flash file before

using the Board Update Portal to upload them.

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