From 998419816c815175cd4c4f226e619c578d42e0aa Mon Sep 17 00:00:00 2001 From: Daniel Friesel Date: Sun, 7 Feb 2021 21:12:04 +0100 Subject: add arch atmega2560 (preliminary support) --- src/arch/atmega2560/Makefile.inc | 185 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 185 insertions(+) create mode 100644 src/arch/atmega2560/Makefile.inc (limited to 'src/arch/atmega2560/Makefile.inc') diff --git a/src/arch/atmega2560/Makefile.inc b/src/arch/atmega2560/Makefile.inc new file mode 100644 index 0000000..d78db66 --- /dev/null +++ b/src/arch/atmega2560/Makefile.inc @@ -0,0 +1,185 @@ +# vim:ft=make +# +# Copyright 2021 Daniel Friesel +# +# SPDX-License-Identifier: BSD-2-Clause + +MCU = atmega2560 +SERIAL_PORT ?= /dev/ttyUSB0 +BAUD = 115200 + +ifdef CONFIG_arch_atmega2560_cpufreq + cpu_freq = ${CONFIG_arch_atmega2560_cpufreq} +endif + +cpu_freq ?= 16000000 + +COMMON_FLAGS += -Werror=overflow +COMMON_FLAGS += -mmcu=${MCU} -DMULTIPASS_ARCH_atmega2560 +COMMON_FLAGS += -DF_CPU=${cpu_freq}UL +COMMON_FLAGS += -DMULTIPASS_ARCH_HAS_I2C + +ifeq (${stack_usage}, ) + COMMON_FLAGS += -flto +endif + +CC = avr-gcc +CXX = avr-g++ +NM = avr-nm +OBJCOPY = avr-objcopy +OBJDUMP = avr-objdump + +ARCH_SHORTNAME = avr + +ifdef CONFIG_aspectc + CXX = ag++ -r build/repo.acp -v 0 --c_compiler avr-g++ -p . --Xcompiler +endif + +CXX_TARGETS += src/arch/atmega2560/arch.cc +CXX_TARGETS += src/arch/atmega2560/driver/gpio.cc +CXX_TARGETS += src/arch/atmega2560/driver/stdout.cc + +# Command-line driver selection + +ifneq ($(findstring softi2c,${drivers}), ) +else ifneq ($(findstring i2c,${arch_drivers}), ) + CONFIG_arch_atmega2560_driver_i2c = y +endif + +ifneq ($(findstring adc,${arch_drivers}), ) + CONFIG_arch_atmega2560_driver_adc = y +endif + +ifneq ($(findstring spi,${arch_drivers}), ) + CONFIG_arch_atmega2560_driver_spi = y +endif + +ifneq ($(findstring stdin,${arch_drivers}), ) + CONFIG_arch_atmega2560_driver_stdin = y +endif + +ifneq ($(findstring timer,${arch_drivers}), ) + CONFIG_arch_atmega2560_driver_timer = y +endif + +ifneq ($(findstring counter,${arch_drivers}), ) + CONFIG_arch_atmega2560_driver_counter = y +endif + +ifneq ($(findstring neopixel,${arch_drivers}), ) + CONFIG_arch_atmega2560_driver_neopixel = y +endif + +ifeq (${timer_s}, 1) + CONFIG_arch_atmega2560_driver_uptime = y +endif + +# Kconfig driver selection + +ifdef CONFIG_arch_atmega2560_driver_i2c + CXX_TARGETS += src/arch/atmega2560/driver/i2c.cc +endif + +ifdef CONFIG_arch_atmega2560_driver_adc + CXX_TARGETS += src/arch/atmega2560/driver/adc.cc +endif + +ifdef CONFIG_arch_atmega2560_driver_spi + CXX_TARGETS += src/arch/atmega2560/driver/spi.cc +endif + +ifdef CONFIG_arch_atmega2560_driver_stdin + CXX_TARGETS += src/arch/atmega2560/driver/stdin.cc +endif + +ifdef CONFIG_arch_atmega2560_driver_timer + CXX_TARGETS += src/arch/atmega2560/driver/timer.cc +endif + +ifdef CONFIG_arch_atmega2560_driver_counter + CXX_TARGETS += src/arch/atmega2560/driver/counter.cc +endif + +ifdef CONFIG_arch_atmega2560_driver_neopixel + CXX_TARGETS += src/arch/atmega2560/driver/neopixel.cc +endif + +ifdef CONFIG_arch_atmega2560_driver_uptime + COMMON_FLAGS += -DTIMER_S + CXX_TARGETS += src/arch/atmega2560/driver/uptime.cc +endif + +ifeq (${cpu_freq}, 16000000) + uart_baud = 57600 +else ifeq (${cpu_freq}, 8000000) + uart_baud = 38400 +else ifeq (${cpu_freq}, 4000000) + uart_baud = 38400 +else ifeq (${cpu_freq}, 2000000) + uart_baud = 19200 +else ifeq (${cpu_freq}, 1000000) + uart_baud = 9600 +else ifeq (${cpu_freq}, 500000) + uart_baud = 4800 +else ifeq (${cpu_freq}, 250000) + uart_baud = 2400 +else ifeq (${cpu_freq}, 125000) + uart_baud = 1200 +else ifeq (${cpu_freq}, 62500) + uart_baud = 300 +else + uart_baud = 9600 +endif + +COMMON_FLAGS += -DBAUD=${uart_baud}UL + +OBJECTS = ${CXX_TARGETS:.cc=.o} ${C_TARGETS:.c=.o} + +.cc.o: + ${QUIET}${CXX} ${INCLUDES} ${COMMON_FLAGS} ${CXXFLAGS} -c -o $@ ${@:.o=.cc} + +.c.o: + ${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} ${CFLAGS} -c -o $@ ${@:.o=.c} + +build/system.elf: ${OBJECTS} + ${QUIET}mkdir -p build + ${QUIET}${CXX} ${COMMON_FLAGS} ${CXXFLAGS} -Wl,--gc-sections -o $@ ${OBJECTS} + ${QUIET}avr-size --format=avr --mcu=${MCU} $@ + ${QUIET}test $$(avr-size --format=avr --mcu=${MCU} build/system.elf | fgrep Program | grep -o '[0-9.]*%' | cut -d . -f 1) -lt 100 + +build/system.hex: build/system.elf + ${QUIET}${OBJCOPY} -O ihex ${@:.hex=.elf} $@ + +program: build/system.hex + ${QUIET}avrdude -p ${MCU} -c wiring -P ${SERIAL_PORT} -b ${BAUD} -D -U flash:w:build/system.hex + +arch_clean: + ${QUIET}rm -f ${OBJECTS} build/system.hex + +cat: + ${QUIET}script/cat.py ${SERIAL_PORT} ${uart_baud} ${cpu_freq} 65536 + +monitor: + ${QUIET}screen ${SERIAL_PORT} ${uart_baud} + +size: build/system.elf + ${QUIET}avr-size --format=avr --mcu=${MCU} build/system.elf | fgrep Program | perl -nE 'if (m{(\d+) bytes \(([0-9.]+%)}) { print("$$1;$$2;") }' + ${QUIET}avr-size --format=avr --mcu=${MCU} build/system.elf | fgrep Data | perl -nE 'if (m{(\d+) bytes \(([0-9.]+%)}) { print("$$1;$$2;") }' + ${QUIET}echo + +arch_help: + @echo "atmega2560 specific flags:" + @echo " SERIAL_PORT = ${SERIAL_PORT}" + @echo " BAUD = ${BAUD} (only used for programming)" + +arch_info: + @echo "CPU Freq: ${cpu_freq} Hz" + @echo "Timer Freq: ${timer_freq} Hz" + @echo "I2C Freq: ${i2c_freq} Hz" + @echo "Counter Overflow: 65536/255" + @echo "Monitor: ${SERIAL_PORT} ${uart_baud}" + +attributes: build/system.elf + ${QUIET}script/size.py avr-size text,data data,bss + +.PHONY: arch_clean arch_help arch_info attributes cat monitor program size -- cgit v1.2.3