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13.4 EDK - "ERROR:Pack:2501 - Symbol " "of type MCB has a property "MEM_DDR3_WRT_RECOVERY" with an illegal value of "3"
If I use axi_s6_ddrx_0, an error similar to the following occurs in Implementation:
ERROR:Pack:2501 - Symbol "u2/axi_s6_ddrx_0/axi_s6_ddrx_0/mcb_ui_top_0/mcb_raw_wrapper_inst/samc_0" of type MCB has a property "MEM_DDR3_WRT_RECOVERY" with an illegal value of "3".
The equation of MEM_DDR3_WRT_RECOVERY is:
localparam C_MEM_DDR3_WRT_RECOVERY = (C_MEM_TYPE !="DDR3") ? 5: ((C_MEM_TWR +C_MEMCLK_PERIOD -1) /C_MEMCLK_PERIOD);
This message is generally based on clock frequency.
The error can occur if an invalid clock frequency for DDR3 is used, (for example 200 MHz), which is below the ~300 MHz DDR3 minimum frequency.
- AXI Spartan-6 FPGA DDRX Memory Controller