The Soft Error Mitigation (SEM) IP Core is recommended for use with Xilinx programming solutions.
Incorrect behavior of the SEM IP Core can occur when using Digilent programming solutions.
The SEM IP core might fail to initialize when the bitstream containing the SEM IP core is downloaded by a Digilent programming solution.
This issue is independent of the design tool version or IP core version.
This can be observed through the initialization report. A normal report should look like the following:
When initialization fails due to this issue, the report looks similar to the following:
Notice that after 'INIT' there is no indication of an 'OK' status. This issue is currently under investigation and will be updated in this answer record when more details are known.
A work-around is to use a Xilinx programming solution such as the Platform Cable USB or Platform Cable USB II.
This issues is fixed for Digilent by updating the programming cable driver. Please download the latest cable driver for the Digilent cable.
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