> ADDRESS_SPACE prom RAMB16 [0x00000000:0x000007FF] > BUS_BLOCK > riscx_PM/Mram_mem [31:0] PLACED = X0Y22; > END_BUS_BLOCK; > END_ADDRESS_SPACE; $ data2mem -bm prom.bmm -bt ISE/risc5top.bit -bd prom.mem -o b new.bit Works and produces a new bit file in a second. -- Tomas Kral <thomas.kral at email.cz>