PRSDK-5738:Add makefile for PWM PRU FW

1 files changed, 131 insertions, 0 deletions

diff --git a/example/apps/icssg_pwm/firmware/src/Makefile b/example/apps/icssg_pwm/firmware/src/Makefile
new file mode 100644
index 0000000..ccfb69f
--- /dev/null
+++ b/example/apps/icssg_pwm/firmware/src/Makefile
@@ -0,0 +1,131 @@
+# PRU_CGT environment variable must point to the TI PRU code gen tools directory. E.g.:
+#(Desktop Linux) export PRU_CGT=/path/to/pru/code/gen/tools/ti-cgt-pru_2.x.y
+#(Windows) set PRU_CGT=C:/path/to/pru/code/gen/tools/ti-cgt-pru_2.x.y
+#(ARM Linux*) export PRU_CGT=/usr/share/ti/cgt-pru
+#
+# *ARM Linux also needs to create a symbolic link to the /usr/bin/ directory in
+# order to use the same Makefile
+#(ARM Linux) ln -s /usr/bin/ /usr/share/ti/cgt-pru/bin
+
+ifndef PRU_CGT
+define ERROR_BODY
+
+*******************************************************************************
+PRU_CGT environment variable is not set. Examples given:
+(Desktop Linux) export PRU_CGT=/path/to/pru/code/gen/tools/ti-cgt-pru_2.1.2
+(Windows) set PRU_CGT=C:/path/to/pru/code/gen/tools/ti-cgt-pru_2.1.2
+(ARM Linux*) export PRU_CGT=/usr/share/ti/cgt-pru
+
+*ARM Linux also needs to create a symbolic link to the /usr/bin/ directory in
+order to use the same Makefile
+(ARM Linux) ln -s /usr/bin/ /usr/share/ti/cgt-pru/bin
+*******************************************************************************
+
+endef
+$(error $(ERROR_BODY))
+endif
+
+MKFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
+CURRENT_DIR := $(notdir $(patsubst %/,%,$(dir $(MKFILE_PATH))))
+PROJ_NAME=pwm
+
+LINKER_COMMAND_FILE=./AM654x_PRU.cmd
+
+LIBS=
+
+PDK_INSTALL_DIR ?= $(PRSDK_INSTALL_DIR)/pdk_am65xx_1_0_4/packages
+
+INCLUDE=--include_path=$(PDK_INSTALL_DIR)
+STACK_SIZE=0x100
+HEAP_SIZE=0x100
+GEN_DIR=gen
+
+CDEFINES = -DSOC_AM65XX
+
+#Common compiler and linker flags (Defined in 'PRU Optimizing C/C++ Compiler User's Guide)
+#CFLAGS=-v3 -o2 --display_error_number --endian=little --hardware_mac=on --asm_directory=$(GEN_DIR) --obj_directory=$(GEN_DIR) --pp_directory=$(GEN_DIR) -ppd -ppa
+CFLAGS= $(CDEFINES) -v3 -o2 --display_error_number --endian=little --hardware_mac=on --asm_directory=$(GEN_DIR) --obj_directory=$(GEN_DIR) --pp_directory=$(GEN_DIR) -ppd -ppa
+#CFLAGS= $(CDEFINES) -v3 -o2 --opt_for_speed=0 --display_error_number --endian=little --hardware_mac=on --asm_directory=$(GEN_DIR) --obj_directory=$(GEN_DIR) --pp_directory=$(GEN_DIR) -ppd -ppa
+#CFLAGS= $(CDEFINES) -v3 -g --display_error_number --endian=little --hardware_mac=on --asm_directory=$(GEN_DIR) --obj_directory=$(GEN_DIR) --pp_directory=$(GEN_DIR) -ppd -ppa
+
+#Linker flags (Defined in 'PRU Optimizing C/C++ Compiler User's Guide)
+#LFLAGS=--reread_libs --warn_sections --stack_size=$(STACK_SIZE) --heap_size=$(HEAP_SIZE) --entry_point=SDDF_ENTRY
+LFLAGS=--reread_libs --warn_sections --stack_size=$(STACK_SIZE) --heap_size=$(HEAP_SIZE)
+
+TARGET=$(GEN_DIR)/$(PROJ_NAME)_array.h
+PRU_IMAGE_PREFIX=pru_$(PROJ_NAME)_image
+
+EXE=$(GEN_DIR)/$(PROJ_NAME).out
+MAP=$(GEN_DIR)/$(PROJ_NAME).map
+OBJECTS=$(patsubst %.asm,$(GEN_DIR)/%.object,$(wildcard *.asm))
+OBJECTS+=$(patsubst %.c,$(GEN_DIR)/%.object,$(wildcard *.c))
+
+
+all: printStart $(TARGET) printEnd
+
+printStart:
+        @echo ''
+        @echo '************************************************************'
+        @echo 'Building project: $(PROJ_NAME)'
+
+printEnd:
+        @echo ''
+        @echo 'Output files can be found in the "$(GEN_DIR)" directory'
+        @echo ''
+        @echo 'Finished building project: $(PROJ_NAME)'
+        @echo '************************************************************'
+        @echo ''
+
+
+# Invoke the hex format converter to translate the .out file to a C header file
+$(TARGET): $(EXE)
+        @echo ''
+        @echo 'Building image header file: $@'
+        @echo 'Invoking: PRU Hex Format Converter'
+        $(PRU_CGT)/bin/hexpru --array --array:name_prefix=$(PRU_IMAGE_PREFIX) $(EXE)
+        mv $(subst .h,.c,$(PROJ_NAME)_array.h) $(TARGET)
+        @echo 'Finished image header file: $@'
+    
+# Invokes the linker (-z flag) to make the .out file
+$(EXE): $(OBJECTS) $(LINKER_COMMAND_FILE)
+        @echo ''
+        @echo 'Building executable: $@'
+        @echo 'Invoking: PRU Linker'
+        $(PRU_CGT)/bin/clpru $(CFLAGS) -z -i$(PRU_CGT)/lib -i$(PRU_CGT)/include $(LFLAGS) -o $(EXE) $(OBJECTS) -m$(MAP) $(LINKER_COMMAND_FILE) --library=libc.a $(LIBS)
+        @echo 'Finished building executable: $@'
+
+# Invokes the compiler on all assembly files in the directory to create the object files
+$(GEN_DIR)/%.object: %.asm
+        @mkdir -p $(GEN_DIR)
+        @echo ''
+        @echo 'Building file: $<'
+        @echo 'Invoking: PRU Compiler'
+        $(PRU_CGT)/bin/clpru --include_path=$(PRU_CGT)/include $(INCLUDE) $(CFLAGS) -fe $@ $<
+
+# Invokes the compiler on all c files in the directory to create the object files
+$(GEN_DIR)/%.object: %.c
+        @mkdir -p $(GEN_DIR)
+        @echo ''
+        @echo 'Building file: $<'
+        @echo 'Invoking: PRU Compiler'
+        $(PRU_CGT)/bin/clpru -k --include_path=$(PRU_CGT)/include $(INCLUDE) $(CFLAGS) -fe $@ $<
+
+.PHONY: all clean
+
+# Remove the $(GEN_DIR) directory
+clean:
+        @echo ''
+        @echo '************************************************************'
+        @echo 'Cleaning project: $(PROJ_NAME)'
+        @echo ''
+        @echo 'Removing files in the "$(GEN_DIR)" directory'
+        @rm -rf $(GEN_DIR)
+        @rm -f $(subst .h,.c,$(PROJ_NAME)_array.h)
+        @echo ''
+        @echo 'Finished cleaning project: $(PROJ_NAME)'
+        @echo '************************************************************'
+        @echo ''
+
+# Includes the dependencies that the compiler creates (-ppd and -ppa flags)
+-include $(OBJECTS:%.object=%.pp)
+