Altera Cyclone V SoC Manuel d'utilisateur télécharger pdf (Page 39)

November 2013 Altera Corporation Cyclone V SoC Development Kit

User Guide

A. Programming Flash Memory

This appendix describes programming information for the following memory

devices:

■ Common flash interface (CFI) flash memory

■ Quad serial peripheral interface (quad SPI) flash memory

■ SD card flash memory

The Cyclone V development board’s flash memory ships preconfigured with the

parallel flash loader (PFL) option bits to support FPGA designs to be written to any of

the three locations as shown in Table A–1. The PFL is disabled by default. Set SW2.3 to

ON to enable FPGA programming from CFI flash memory on power up.

1 There are several other factory software files written to flash memory to support the

Board Update Portal. These software files were created using the Nios II EDS, just as

the hardware design was created using the Quartus II software.

CFI Flash Memory

CFI Flash Memory Map

Table A–1 shows the default memory contents of the 512 Mb CFI flash device.

c Altera recommends that you do not overwrite the factory hardware images unless

you are an expert with Altera tools. If you unintentionally overwrite the factory

hardware or factory software image, refer to “Restoring the CFI Flash Device to the

Factory Defaults” on page 3–6.

Programming CFI Flash Using the Quartus II Programmer

You can use the JTAG interface in Altera CPLDs to indirectly program the flash

memory device. The Altera CPLD JTAG block interfaces directly with the logic array

in a special JTAG mode. This mode brings the JTAG chain through the logic array

instead of the Altera CPLD boundary-scan cells (BSC). The PFL megafunction

provides JTAG interface logic to do the following:

■ Convert the JTAG stream provided by the Quartus II software.

Table A–1. Byte Address Flash Memory Map

Block Description KB Size Address Range

Unused 44711 0x0145.635C - 03FF.FFFF

User hardware 2 6872 0x00DA.0000 - 0145.635B

User hardware 1 6872 0x006E.0000 - 00D9.635B

Factory hardware 6872 0x0002.0000 - 006D.635B

PFL option bits 32 0x0001.8000 - 0001.8080

1 2 ... 34 35 36 37 38 39 40 41 42 43 44

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Altera Cyclone V SoC Manuel d'utilisateur Page 39