I am trying to create an SPI based system using the XPS SPI core in BSB.
However, BSB does not connect the SS port.
What is the reason for this ?
The board's XBD file has chip_select as the IO_IS tag while the XPS SPI v2_02_a core MPD file (which is released in 12.3) has slave_select as the IO_IS tag.
As a result, the tool does not infer the SS port in the external port list as well as in the UCF.
The system will be created without the SS signals physically connected.
This is observed only in the xps_spi_v2_02_a core which is released in EDK v12..
There has been a change in the xps_spi core MPD.
The following modifications should be made to ensure that the BSB connects to the SS port:
The MPD file for the xps_spi_v2_02_a core needs updates to the IO_IS tags for the below ports: