I have used spartan 6 to configure microblaze and now wants to transmit using axi_spi module. I configured using XPS and wrote code in SDK using XSpi_Transfer function. I got XST_SUCESS as return status from the function. But when I launched ISim from XPS after showing my elf in Sim and Imp executable path none of my pins ss,mosi,miso changes value from undefined . I have given clock and reset for simulation. Also my mem files in simulation -> behavioural folder shows only 2 addresses 0x0 and 0x14. Attached are necessary files.All the mem files loop in same address. Please make some suggestions.