Chapter 1: SP605 Evaluation Board
FPGA Design Considerations for the Configuration Flash
The SP605 has the P30 BPI flash connected to the FPGA dual use configuration pins and is not shared. It can be used to configure the FPGA, and then controlled
When the FPGA design does not use the configuration flash, the FPGA design must drive the FLASH_OE_B pin High in order to disable the configuration flash and put the flash into a quiescent,
For FPGA designs that access the flash for reading/writing stored code or data, connect the FPGA design or EDK embedded memory controller (EMC) peripheral to the flash through the pins defined in Figure
References
See the Numonyx StrataFlash Embedded Memory Data Sheet for more information. [Ref 14]
In addition, see the
5. System ACE CF and CompactFlash Connector
The Xilinx System ACE CompactFlash (CF) configuration controller allows a Type I or Type II CompactFlash card to program the FPGA through the JTAG port. Both hardware and software data can be downloaded through the JTAG port. The System ACE CF controller supports up to eight configuration images on a single CompactFlash card. The configuration address switches allow the user to choose which of the eight configuration images to use.
The CompactFlash (CF) card shipped with the board is correctly formatted to enable the System ACE CF controller to access the data stored in the card. The System ACE CF controller requires a FAT16 file system, with only one reserved sector permitted, and a
Other folders and files may also coexist with the System ACE CF project within the FAT16 partition. However, the root directory must not contain more than a total of 16 folder and/or file entries, including deleted entries. When ejecting or unplugging the CompactFlash device, it is important to safely stop any read or write access to the CompactFlash device to avoid data corruption.
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| UG526 (v1.1.1) February 1, 2010 |