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metastability comment

This commit is contained in:
Peter McGoron 2022-10-23 14:06:38 -04:00
parent e65cb07b75
commit 6459fc5c2a
1 changed files with 7 additions and 1 deletions
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8
spi_master.v
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@ -44,7 +44,13 @@ spi_master
); );
`ifndef SPI_MASTER_NO_READ `ifndef SPI_MASTER_NO_READ
/* MISO is almost always an external wire, so buffer it. */ /* MISO is almost always an external wire, so buffer it.
* This might not be necessary, since the master and slave do not respond
* immediately to changes in the wires, but this is just to be safe.
* It is trivial to change, just do
* wire read_miso = miso;
*/
reg miso_hot = 0; reg miso_hot = 0;
reg read_miso = 0; reg read_miso = 0;