准备把de2-115上面的存储器外设都给驱动一下，首先就先从简单的sram开始。Sram的驱动比较简单，和FPGA内部的ram差不多，只不过不是由时钟来控制读写，而是由控制信号来控制读写，读写都很快，基本上一个时钟就可以读取和写入数据，当然这时钟不能太快，不能超过芯片规定的最小时间。
2021-08-10 16:17:28
343KB
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通过FPGA控制sram的读写，经过实际在电路板上验证测试，在开发产品中使用验证过。
通过S0 = 0, S1 = 1, S2 = 2, S3 = 3, S11 = 4, S12 = 5, S13 = 6, S21 = 7, S22 = 8，8个状态机控制读写，实现了MCU发地址和长度，即可实现读sram，在空闲期间不断把AD数据写入到sram。
2021-07-25 13:02:35
4KB
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In embedded systems, resources are often limited and getting
the best possible performance out of those resources can be
critical. Although the idea of performance and low power
might seem contradictory, the ability to perform a task quickly
and then enter a low power mode can lead to an overall
reduction in system power consumption. Therefore, almost
any system can benefit from efforts to improve performance.
2021-07-21 09:02:01
312KB
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