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Altera_Forum
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7 years ago

Trying to implement SPI slave in Cyclone IV - why this isn't working?

Hi, i'm trying to implement some practical stuff in Cyclone IV. For a start i need SPI slave which will write data received from master to dual port RAM. I'm struggling with basics in SPI receiver co...
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Altera_Forum
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7 years ago

As you can see it in the RTL view, MOSI signal is not binded.

Your code tries to invert the output signal in the output signal, you never use the input signal.

To make a very simple inverted loopback, you should invert the mosi signal.

miso <= ~mosi;