怎么在XAPP468中实现参考设计

用户界面是一个tcl脚本，用于读取和写入PicoBlaze也可以看到的寄存器。
脚本中的（B）来自比特流的选项将向用户查询他们想要用于ICAP多重引导命令的SPI地址。
脚本收集地址后，地址将写入Spartan-3A（N）中的寄存器，然后最终寄存器写入触发ICAP事务，将多引导地址复制到配置逻辑中并发出reboot命令。
有关扩展Spartan-3A系列的ICAP事务和多引导寄存器的更多信息，请参阅“Spartan-3系列配置用户指南”（http://www.xilinx.com/support/documentation/user_guides/ug332.pdf）的第14章。
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以下为原文

The user interface is a tcl script that reads and writes registers that the PicoBlaze can also see. The (B)oot from bitstream option in the script will query the user for a SPI address that they would like to use for the ICAP multiboot command. Once the script collects the address, the address is written to registers in the Spartan-3A(N) and then a final register write triggers the ICAP transactions to copy the multiboot address into the configuration logic and issue a reboot command.
 
For more information regarding the ICAP transactions and multiboot registers for the Extended Spartan-3A family consult Chapter 14 of the Spartan-3 Generation Configuration User Guide (http://www.xilinx.com/support/documentation/user_guides/ug332.pdf).

很高兴你的回复。
在这种情况下，如果用户从比特流中选择引导选项，引导加载程序将选择要加载的最佳比特流，或者用户指定的应用程序将加载
FPGA怪胎



以下为原文

Happy with your reply.
 
In this case, if the user selects the option boot from bitstream, will bootstrap loader selects the optimal bitstream to load or the application specified by the user will load
FPGA freak

bootstap加载程序仅在启动时立即进行选择并重新启动。
从比特流引导选项作为应用程序强制重新启动到特定图像的附加手段，可能是因为计时（例如，新图像刚刚被编程并且现在需要）或者因为图像未被选中
通过引导程序。



以下为原文

The bootstap loader only does its selection and reboot only immediately upon startup. The boot from bitstream option is provided as an additional means for an application to force a reboot to a specific image, either because of timing (for example, a new image was just programmed and it is needed now) or because the image was not selected by the bootstrap.