加载mcs文件无法运行

首先，Impact仅转换您提供的.bit文件以生成.mcs文件。
它并没有真正“创建”.mcs文件。
所以要检查的地方是bitgen（“生成编程文件”），其选项包括启动时钟。
使
确保启动时钟设置为CCLK（默认情况下应设置为此值）。
切勿将启动时钟设置为
JTAG即使您计划直接使用Impact对零件进行编程。
使用JTAG编程时，Impact
自动将启动时钟更改为JTAG，因此最好将其设置为CCLK以生成PROM文件。
除此之外，请确保在准备.mcs文件时Impact正在使用正确的闪存类型设置。
最后，如果这个板还没有使用过其他一些.mcs文件，你应该确保
模式（M0，M1，M2）引脚和变量选择（VS0，VS1，VS2）引脚已正确设置为主SPI模式。
查看FPGA系列的配置指南，了解如何完成此操作。
如果你正在使用eval
或演示套件，电路板上可能有跳线需要设置为从闪存配置。
检查
该套件的硬件用户指南。
-  Gabor
-  Gabor
在原帖中查看解决方案



以下为原文

First, Impact only translates the .bit file you give it to make the .mcs file.  It doesn't really "create" the .mcs file.
So the place to check is bitgen ("Generate Programming File") whose options include the startup clock.  Make
sure that the startup clock is set to CCLK (should be set to this by default).  Never set the startup clock to
JTAG even if you plan to program the part directly with Impact.  When using JTAG programming, Impact
automatically changes the startup clock to JTAG, so it's best to leave it set to CCLK for generating PROM files.
 
Other than that, make sure that Impact is using the correct flash type settings when preparing the .mcs file.
 
Finally, if this board has not already worked with some other .mcs file, you should make sure that the
Mode (M0, M1, M2) pins and Variant Select (VS0, VS1, VS2) pins are properly set for master SPI mode.
Check the Configuration Guide for your FPGA family to see how this is done.  If you're using an eval
or demo kit, there may be jumpers on the board that need to be set to configure from flash.  Check
the kit's hardware user guide.
 
-- Gabor
-- GaborView solution in original post

首先，Impact仅转换您提供的.bit文件以生成.mcs文件。
它并没有真正“创建”.mcs文件。
所以要检查的地方是bitgen（“生成编程文件”），其选项包括启动时钟。
使
确保启动时钟设置为CCLK（默认情况下应设置为此值）。
切勿将启动时钟设置为
JTAG即使您计划直接使用Impact对零件进行编程。
使用JTAG编程时，Impact
自动将启动时钟更改为JTAG，因此最好将其设置为CCLK以生成PROM文件。
除此之外，请确保在准备.mcs文件时Impact正在使用正确的闪存类型设置。
最后，如果这个板还没有使用过其他一些.mcs文件，你应该确保
模式（M0，M1，M2）引脚和变量选择（VS0，VS1，VS2）引脚已正确设置为主SPI模式。
查看FPGA系列的配置指南，了解如何完成此操作。
如果你正在使用eval
或演示套件，电路板上可能有跳线需要设置为从闪存配置。
检查
该套件的硬件用户指南。
-  Gabor
-  Gabor



以下为原文

First, Impact only translates the .bit file you give it to make the .mcs file.  It doesn't really "create" the .mcs file.
So the place to check is bitgen ("Generate Programming File") whose options include the startup clock.  Make
sure that the startup clock is set to CCLK (should be set to this by default).  Never set the startup clock to
JTAG even if you plan to program the part directly with Impact.  When using JTAG programming, Impact
automatically changes the startup clock to JTAG, so it's best to leave it set to CCLK for generating PROM files.
 
Other than that, make sure that Impact is using the correct flash type settings when preparing the .mcs file.
 
Finally, if this board has not already worked with some other .mcs file, you should make sure that the
Mode (M0, M1, M2) pins and Variant Select (VS0, VS1, VS2) pins are properly set for master SPI mode.
Check the Configuration Guide for your FPGA family to see how this is done.  If you're using an eval
or demo kit, there may be jumpers on the board that need to be set to configure from flash.  Check
the kit's hardware user guide.
 
-- Gabor
-- Gabor

感谢您的快速回复和进步。
我查了一下你说的那些东西。
它们和你说的一样。
所以我现在很困惑。
今天，我从ISE安装的路径（不是从ISE的窗口）打开了IMPACT，并重新创建了一个mcs文件并将其配置到我的闪存，然后我的主板有信号输出，在主单线附近只有一些杂散。
也许我的代码仍有一些缺点。
另外，我不知道如何在UCF文件中添加约束。
我的约束依赖于什么？
我怎么知道何时应该使用约束来优化我的设计？
看待。



以下为原文

Thanks for your quick reply and advances.
I checked those items you said. And they are same with what you said. So I'm confused now.
Today, I opened the IMPACT from the path ISE installed ( not from the window of ISE ), and recreated a mcs file and configure it to my flash, then my board has signal output which just has some stray near the master single tone. Maybe my code still has some drawback.
In addition, I don't know how to add constraints in UCF file. What my constraints depend on? How could I know when I should use constraints to optimize my design?
 
Regard.