我正在处理将QDR II SRAM连接到Spartan-6 FPGA的问题。
我不是斯巴达IP核的专家,但我意识到Spartan-6没有预见到的QDR接口。
但是我确信它可以做到。
米卡,
您对QDR能力的大胆信心是什么基础?
您期望什么数据速率?
我不是Spartan 6 MCB权威,但我的猜测是将MCB从16位DQ扩展到18位是不可能的。
很多(但不是全部)S6 MCB都是一个很难的'宏'。
例如,结构侧的数据端口都具有FIFO,并且配置的宽度是32位的倍数(不是36位)。
MCB的使用不会影响结构BRAM的可用性(利用率),这似乎是MCB数据路径在硅中固定的确凿证据。
- 鲍勃埃尔金德
签名:新手的自述文件在这里:http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369总结:1。
阅读手册或用户指南。
你读过手册了吗?
你能找到手册吗?2。
搜索论坛(并搜索网页)以寻找类似的主题。
不要在多个论坛上发布相同的问题。
不要在别人的主题上发布新主题或问题,开始新的主题!5。
学生:复制代码与学习设计不同.6“它不起作用”不是一个可以回答的问题。
提供有用的详细信息(请与网页,数据表链接).7。
您的代码中的评论不需要支付额外费用。
我没有支付论坛帖子的费用。
如果我写一篇好文章,那么我一无所获。
以上来自于谷歌翻译
以下为原文
I'm dealing with interfacing an QDR II SRAM to an Spartan-6 FPGA. I'm not an expert on Spartan IP cores, but I realized that there is no QDR interfacing foreseen for the Spartan-6. However I'm sure that it can be done.
Mika,
What's the basis for your bold confidence in QDR capability? What data rates are you expecting?
I'm not a Spartan 6 MCB authority, but my guess is that extending the MCB from 16 bits of DQ to 18 bits is not possible. Much (but not all) of the S6 MCB is a hard 'macro'. For instance, the data ports on the fabric side all have FIFOs, and are configured in widths which are multiples of 32 bits (not 36 bits). The use of the MCB does not affect the availability (utilisation) of fabric BRAMs, which seems to be hard evidence that the MCB datapaths are fixed in silicon.
-- Bob Elkind
SIGNATURE:
README for newbies is here: http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369
Summary:
1. Read the manual or user guide. Have you read the manual? Can you find the manual?
2. Search the forums (and search the web) for similar topics.
3. Do not post the same question on multiple forums.
4. Do not post a new topic or question on someone else's thread, start a new thread!
5. Students: Copying code is not the same as learning to design.
6 "It does not work" is not a question which can be answered. Provide useful details (with webpage, datasheet links, please).
7. You are not charged extra fees for comments in your code.
8. I am not paid for forum posts. If I write a good post, then I have been good for nothing.
我正在处理将QDR II SRAM连接到Spartan-6 FPGA的问题。
我不是斯巴达IP核的专家,但我意识到Spartan-6没有预见到的QDR接口。
但是我确信它可以做到。
米卡,
您对QDR能力的大胆信心是什么基础?
您期望什么数据速率?
我不是Spartan 6 MCB权威,但我的猜测是将MCB从16位DQ扩展到18位是不可能的。
很多(但不是全部)S6 MCB都是一个很难的'宏'。
例如,结构侧的数据端口都具有FIFO,并且配置的宽度是32位的倍数(不是36位)。
MCB的使用不会影响结构BRAM的可用性(利用率),这似乎是MCB数据路径在硅中固定的确凿证据。
- 鲍勃埃尔金德
签名:新手的自述文件在这里:http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369总结:1。
阅读手册或用户指南。
你读过手册了吗?
你能找到手册吗?2。
搜索论坛(并搜索网页)以寻找类似的主题。
不要在多个论坛上发布相同的问题。
不要在别人的主题上发布新主题或问题,开始新的主题!5。
学生:复制代码与学习设计不同.6“它不起作用”不是一个可以回答的问题。
提供有用的详细信息(请与网页,数据表链接).7。
您的代码中的评论不需要支付额外费用。
我没有支付论坛帖子的费用。
如果我写一篇好文章,那么我一无所获。
以上来自于谷歌翻译
以下为原文
I'm dealing with interfacing an QDR II SRAM to an Spartan-6 FPGA. I'm not an expert on Spartan IP cores, but I realized that there is no QDR interfacing foreseen for the Spartan-6. However I'm sure that it can be done.
Mika,
What's the basis for your bold confidence in QDR capability? What data rates are you expecting?
I'm not a Spartan 6 MCB authority, but my guess is that extending the MCB from 16 bits of DQ to 18 bits is not possible. Much (but not all) of the S6 MCB is a hard 'macro'. For instance, the data ports on the fabric side all have FIFOs, and are configured in widths which are multiples of 32 bits (not 36 bits). The use of the MCB does not affect the availability (utilisation) of fabric BRAMs, which seems to be hard evidence that the MCB datapaths are fixed in silicon.
-- Bob Elkind
SIGNATURE:
README for newbies is here: http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369
Summary:
1. Read the manual or user guide. Have you read the manual? Can you find the manual?
2. Search the forums (and search the web) for similar topics.
3. Do not post the same question on multiple forums.
4. Do not post a new topic or question on someone else's thread, start a new thread!
5. Students: Copying code is not the same as learning to design.
6 "It does not work" is not a question which can be answered. Provide useful details (with webpage, datasheet links, please).
7. You are not charged extra fees for comments in your code.
8. I am not paid for forum posts. If I write a good post, then I have been good for nothing.
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