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# External memory test -- build simulation and execution VHDL modules

# Get common makefile stuff (toolchain & system config)

include ..\\common\\makefile

# We'll run the simulation for long enough to complete the test

SIM_LENGTH = 400000

# FPGA Block RAM parameters

BRAM_START = 0xbfc00000

CODE_BRAM_SIZE = 2048

FLASH_START = 0xb0000000

# External RAM parameters (size in words)

XRAM_SIZE = 1024

XRAM_START = 0x00000000

LFLAGS = -Ttext $(BRAM_START) -Tdata $(XRAM_START) -eentry -I elf32-big

LFLAGS_FLASH = -Ttext $(FLASH_START) -eflash_test -I elf32-big

clean:

        -$(RM) *.o *.obj *.map *.lst *.hex *.exe *.axf *.code *.data

# Use this target when you want to test execution from FLASH

memtest_main_noflash:

        $(AS_MIPS) -defsym TEST_CACHE=1 -defsym XRAM_BASE=$(XRAM_START) -o memtest.o memtest.s

# Use this target when you DON'T want to test execution from FLASH

memtest_main:

        $(AS_MIPS) -defsym TEST_CACHE=1 -defsym EXEC_FLASH=1 -defsym XRAM_BASE=$(XRAM_START) -o memtest.o memtest.s

memtest: memtest_main

        $(LD_MIPS) $(LFLAGS) -Map memtest.map -s -N -o memtest.axf memtest.o

        -@$(DUMP_MIPS) -I elf32-big --disassemble memtest.axf > memtest.lst

# Dump code and data to separate binaries (data binary will be empty but TB2 needs it)

        $(COPY_MIPS) -I elf32-big -j .text -j .rodata -O binary memtest.axf memtest.code

        $(COPY_MIPS) -I elf32-big -j .sbss -j .data -j .bss -O binary memtest.axf memtest.data

flashtest: memtest_main

        $(AS_MIPS) -defsym TEST_CACHE=1 -defsym FLASH_BASE=$(FLASH_START) -o flash.o flash.s

        $(LD_MIPS) $(LFLAGS_FLASH) -Map flash.map -s -N -o flash.axf flash.o

        -@$(DUMP_MIPS) -I elf32-big --disassemble flash.axf > flash.lst

        $(COPY_MIPS) -I elf32-big -j .text -j .rodata -O binary flash.axf flash.bin

# Create VHDL file for simulation test bench using TB2 template

memtest_sim: memtest flashtest

        $(TO_VHDL) --code memtest.code --data memtest.data --log_trigger=0xbfc00000 \

                --flash flash.bin --flash_size 4096 \

                --code_size $(CODE_BRAM_SIZE) --data_size $(XRAM_SIZE) \

                -s $(SIM_LENGTH) -v $(SRC_DIR)\\mips_tb2_template.vhdl \

                -o $(TB_DIR)\\mips_tb2.vhdl -e mips_tb2

# Create VHDL file for hardware demo

memtest_demo: memtest flashtest

        $(TO_VHDL) --code memtest.code --data memtest.data --log_trigger=0xb0000000 \

        --code_size $(CODE_BRAM_SIZE) --data_size $(XRAM_SIZE) \

        -v $(SRC_DIR)/mips_mpu1_template.vhdl \

        -o $(DEMO_DIR)/mips_mpu.vhdl -e mips_mpu