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-rw-r--r--Makefile.example35
1 files changed, 28 insertions, 7 deletions
diff --git a/Makefile.example b/Makefile.example
index c85dc8f..484c279 100644
--- a/Makefile.example
+++ b/Makefile.example
@@ -13,28 +13,49 @@ FONT := $(DESIGN_DIR)/font.mem
IVFLAGS += -I$(PROJ_DIR)/include/
-ROM_DEFINES = \
+EMBEDDED_ROM_DEFINES = \
-DROM_WORDS_COUNT=$(call FILE_LINES,instructions.mem) \
-DEMBEDDED_ROM_FILE=\"instructions.mem\" \
-DFONT_FILE=\"$(FONT)\"
+ifdef FLASH_DATA
+INCLUDE_SPI_IMAGE = 1
+
+# We put some random data in the image so as not to waste time generating
+# bitstream when we're only working in a simulator.
+spi.mem : $(PROJ_DIR)/tools/bin2hex $(FLASH_DATA)
+ (dd if=/dev/urandom bs=135100 count=1; cat $(FLASH_DATA)) \
+ 2>/dev/null | $< > $@
+else
+FLASH_DATA = /dev/null
+endif
+
+ifdef INCLUDE_SPI_IMAGE
+SPI_ROM_DEFINES = \
+ -DSPI_ROM_FILE=\"spi.mem\" \
+ -DSPI_ROM_WORDS_COUNT=$(call FILE_LINES,spi.mem)
+
+example.vvp : spi.mem
+simulate : spi.mem
+endif
+
example.vvp : $(DESIGN_DIR)/*.v soc_with_peripherals.v flash_memory.v sram.v \
vga_display.v example_toplevel.v $(FONT) messages.vh \
instructions.mem
- $(IV) $(IVFLAGS) $(SIMFLAGS) -DSIMULATION $(ROM_DEFINES) \
- -s example $(filter %.v,$^) -o $@
+ $(IV) $(IVFLAGS) $(SIMFLAGS) -DSIMULATION $(EMBEDDED_ROM_DEFINES) \
+ $(SPI_ROM_DEFINES) -s example $(filter %.v,$^) -o $@
simulate : example.vvp
$(VVP) $<
if [ -f VGAdump.mem ]; then $(MAKE) VGAdump.ppm; fi
design.v : instructions.mem $(DESIGN_DIR)/*.v $(FONT)
- $(IV) $(IVFLAGS) $(ROM_DEFINES) -E $(filter %.v,$^) -o $@
+ $(IV) $(IVFLAGS) $(EMBEDDED_ROM_DEFINES) -E $(filter %.v,$^) -o $@
clean :
find . -name "*.vvp" -delete
- rm $(call FIND_GENERATED_FILES,.) $(addprefix design.,v json asc bin) \
- $(addsuffix .log,yosys pnr) VGAdump.mem VGAdump.ppm \
- 2>/dev/null || true
+ rm $(call FIND_GENERATED_FILES,.) $(addsuffix .log,yosys pnr) \
+ $(addprefix design.,v json asc bin) spi.mem \
+ VGAdump.mem VGAdump.ppm 2>/dev/null || true
.PHONY : def simulate clean