《26hwswsimulation.ppt

System Simulation Objectives After completing this module, you will be able to: Describe the functionality of SimGen Describe the integration of SimGen within XPS Describe the simulation process Describe what SmartModel? Libraries are and how to use them Outline SimGen Simulation Procedure SmartModel Libraries SimGen The Simulation Model Generation tool (SimGen) generates and configures various simulation models for the specified hardware SimGen will generate simulation models by using a Microprocessor Hardware Specification (MHS) file SimGen searches for input files in the following directories located in the project directory project_directory/hdl/ system_name.[vhd|v] peripheral_wrapper.[vhd|v] project_directory/implementation/ (if any of the peripherals are black-box) peripheral_wrapper.ngc system_name.ngc system_name.ncd SimGen SimGen produces peripheral_wrapper.[vhd|v] *** system_name.[vhd|v] system_name.do system_name_sim.bmm system_name.sdf ** Memory Initialization To initialize memory in the simulation models created by SimGen, you need: The compiled executable executable.elf The simulation hardware model generated by executing SimGen system.vhd or system.v The BMM file generated by PlatGen project_directory/implementation directory Data2MEM uses these files and generates a system_init.vhd file that contains block memory initialization content Memory Initialization The system.bmm file is created by the PlatGen tool and carries block memory related information (see next slide) Number of block memories Address range for each set of block memory Data indexing for each block memory in a set The executable.elf file is generated by the compiler and carries data variables and code The system.vhd file is generated by the SimGen tool and carries a hardware model of the system The Data2MEM program uses the above mentioned files, extracts data code information, and generates a system_init.vhd file that contains block memory initialization content System.bmm File