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#-----------------------------------------------------------------

# File:    xilinx_rules.mk

# Author:  David Burnette

# Date:    April 7, 2008

#

# Description:

#

# Usage:

#  This make file fragment contains translate rules for synthesizing

#  Xilinx designs.

#

# This work was based on the Xilinx Makefile by Dave Vanden Bout

# from XESS Corp. Several major differences exist between his

# implementation and mine. This Makefile does not require PERL

# (though it does require AWK).

#

# Dependencies:

#  Depends on 'def_rules.mk' fragment.

#

# Revision History:

#   dgb 2008-04-07   Original version

#

#-----------------------------------------------------------------

include $(MKFRAGS)/def_rules.mk

# Xilinx tools

XST        := xst

NGDBUILD   := ngdbuild

MAP        := map

PAR        := par

BITGEN     := bitgen

PROMGEN    := promgen

TRCE       := trce

IMPACT     := impact

# Extract info from Xilinx ISE project for use with command line tools

XST_FILE := $(DESIGN_NAME).xst

PRJ_FILE := $(shell $(AWK) '/^-ifn/ { printf("%s",$$2) }'  $(XST_FILE))

HDL_FILES := $(subst ",,$(shell $(AWK) '{ print $$3} ' $(PRJ_FILE)))

PART := $(shell $(AWK) '/^-p / { printf("%s",$$2) }' $(XST_FILE))

DEVICE_tmp := $(shell $(AWK) -F - '/^-p / { printf("%s",$$2) }' $(XST_FILE))

DEVICE := $(subst p ,,$(DEVICE_tmp))

SPEED := $(shell $(AWK) -F - '/^-p / { printf("%s",$$3) }' $(XST_FILE))

PACKAGE := $(shell $(AWK) -F - '/^-p / { printf("%s",$$4) }' $(XST_FILE))

BSD_FILE := $(XILINX)/$(FAMILY)/data/$(DEVICE).bsd

INTSTYLE         ?= -intstyle silent      # call Xilinx tools in silent mode

INTSTYLE :=

XST_FLAGS        ?= $(INTSTYLE)           # most synthesis flags are specified in the .xst file

NGDBUILD_FLAGS   ?= $(INTSTYLE) -dd _ngo  # ngdbuild flags

NGDBUILD_FLAGS += $(if $(UCF_FILE),-uc,) $(UCF_FILE)

MAP_FLAGS        ?= $(INTSTYLE) -cm area -pr b -k 4 -c 100 -tx off

PAR_FLAGS        ?= $(INTSTYLE) -w -ol std -t 1

TRCE_FLAGS       ?= $(INTSTYLE) -e 3 -l 3

BITGEN_FLAGS     ?= $(INTSTYLE)           # most bitgen flags are specified in the .ut file

PROMGEN_FLAGS    ?= -u 0                  # flags that control the MCS/EXO file generation

BITGEN_OPTIONS_FILE   ?= $(DESIGN_NAME).ut

#===================================================================

# TRANSLATE RULES

#   RULE: .xst => .ngc

# Synthesize the HDL files into an NGC file.  This rule is triggered if

# any of the HDL files are changed or the synthesis options are changed.

$(DESIGN_NAME).ngc: $(HDL_FILES) $(XST_FILE)

        @$(ECHO)

        @$(ECHO) "======= Synthesis - XST ============================"

        $(XST) $(XST_FLAGS) -ifn $(XST_FILE) -ofn $(DESIGN_NAME).syr

#   RULE: .ngc => .ngd

# Take the output of the synthesizer and create the NGD file.  This rule

# will also be triggered if constraints file is changed.

%.ngd: %.ngc $(UCF_FILE)

        @$(ECHO)

        @$(ECHO) "======= Synthesis - NGDBUILD ======================="

        $(NGDBUILD) $(NGDBUILD_FLAGS) -p $(PART) $*.ngc $*.ngd

#   RULE: .ngd => _map.ncd and .pcf

# Map the NGD file and physical-constraints to the FPGA to create the mapped NCD file.

%_map.ncd %.pcf: %.ngd

        @$(ECHO)

        @$(ECHO) "======= Synthesis - MAP ============================"

        $(MAP) $(MAP_FLAGS) -p $(PART) -o $*_map.ncd $*.ngd $*.pcf

#   RULE: _map.ncd and .pcf => .ncd

# Place & route the mapped NCD file to create the final NCD file.

%.ncd: %_map.ncd %.pcf

        @$(ECHO)

        @$(ECHO) "======= Synthesis - PAR ============================"

        $(PAR) $(PAR_FLAGS) $*_map.ncd $*.ncd $*.pcf

#   RULE: .ncd => .bit

# Take the final NCD file and create an FPGA bitstream file.  This rule will also be

# triggered if the bit generation options file is changed.

%.bit: %.ncd $(BITGEN_OPTIONS_FILE)

        @$(ECHO)

        @$(ECHO) "======= Generating bitstream ======================="

        $(BITGEN) $(BITGEN_FLAGS) -f $(BITGEN_OPTIONS_FILE) $*.ncd

#   RULE: .bit => .mcs

# Convert a bitstream file into an MCS hex file that can be stored into Flash memory.

%.mcs: %.bit

        @$(ECHO)

        @$(ECHO) "======= Generating MCS prom ========================"

        $(PROMGEN) $(PROMGEN_FLAGS) $*.bit -p mcs -w

#   RULE: .bit => .exo

# Convert a bitstream file into an EXO hex file that can be stored into Flash memory.

%.exo: %.bit

        @$(ECHO)

        @$(ECHO) "======= Generating EXO prom ========================"

        $(PROMGEN) $(PROMGEN_FLAGS) $*.bit -p exo

# Create the FPGA timing report after place & route.

%.twr: %.ncd %.pcf

        @$(ECHO)

        @$(ECHO) "======= Generating Timing Report ==================="

        $(TRCE) $(TRCE_FLAGS) $*.ncd -o $*.twr $*.pcf

# Preserve intermediate files.

.PRECIOUS: %.ngc %.ngd %_map.ncd %.ncd %.twr %.vm6 %.jed