32bit FIFO怎么从SPI闪存启动

嗨，大家好，
我想使用FX3与FPGA。我需要提供快速数据传输，所以我决定使用32位从FIFO模式。然而，我有一些疑问：
1。首先，我想从SPI闪存启动。这是第一个问题。32位FIFO不能与SPI一起使用。我假设可以从SPI启动，然后将设备重新配置为32位FIFO。但是，SPI线发生了什么呢？我应该用闪存的WP针来防止无意写入内存吗？
2。此外，我希望有可能直接从FX3重新配置FPGA。我会使用斯巴达6从串行模式，所以…我需要驱动M1配置线，复位FPGA和从串行线（时钟，串行输出，程序B，iNITHB和完成）。
三。这不是我想实现的配置可能性的结束。默认情况下，FPGA将从SPI闪存启动。我希望能够直接从FX3写这个闪存。那么另一个芯片启用和写入保护（？）线是必需的。
我的问题是，销我可以使用32位FIFO来满足这种需求？
我认为那些销完全可以当FIFO配置GPIO 23；GPIO 25；GPIO GPIO GPIO 45 27 26；。我是理发师吗？
可以使用I2S引脚（GPIO 50-52；57）作为GPIO也？
它是任何可能使用SPI来满足第三点要求？
这仅仅是概念，请把你的建议，我想知道如果它是可能的或不。
最好的问候
PNG概念
35.3 K



     以下为原文
  Hi all,
    I would like to use FX3 with FPGA. I need to provide fast data transfer, so I decided to use 32bit slave FIFO mode. However I have some doubts:
    1. First of all I'd like to boot from SPI flash. Here is first problem. 32bit FIFO can't be used with SPI. I assumed that it is possible to boot from SPI and then reconfigure device to 32bit FIFO. But what is happening with SPI lines then? Should I use WP# pin of flash to prevent unintended writing to memory?
    2. Furthermore, I'd like to have possibility of reconfiguring FPGA directly form FX3. I will use Spartan 6 Slave serial mode, so.. I need to drive M1 configuration line, reset FPGA and Slave Serial lines (CLOCK, SERIAL OUT, PROGRAM_B, INIT_B and DONE).
    3. That is not end of configuration possibilities which I would like to implement. FPGA wil boot from SPI flash by default. I'd like to be able to write that flash from FX3 directly. So another chip enable and write protect (?) lines are required.
    My question is which pins I could use with 32bit FIFO to meet this demands?
    I think those pins are fully available when FIFO is configured - GPIO 23; GPIO 25; GPIO 26; GPIO 27; GPIO 45. Am I rigth?
     
    Is it possible to use I2S pins (GPIO 50-52; 57) as GPIO also?
    Is it any possibility to use SPI to meet the requirements of the third point?
    It is only conception, please make your suggestions - I would like to know if it is possible or not.
    Best regards

•    conception.png 35.3 K