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Um,,,,
I send 32-bit data to slave.
0 to 3 bits are meaningless data.
If so, I should send the original strobe signal to 4'b1110.
If I send a strobe signal to 4'b1111, is this a violation of the specification? Or is it just the wrong transmission?
If the AXI bus master is correctly designed, it will send the correct WSTRB encoding to match the valid data.
If you are designing the slave in this case you've got to assume whoever has designed the master has done their job correctly, and if not, they need to fix their design.
AXI is difficult :(
Thank you for your help.