premier tests pour avr sur atmega2560

pfrison
1 parent 4f226353
Showing 4 changed files with 54 additions and 0 deletions Show diff stats
README.md
tests/atmega2560/makefile
tests/atmega2560/servoControl.c
usefulllinks.txt
@@ -2,3 +2,4 @@
 Git du projet CREP (projet IMA 2019 P42)
+
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+export CC = avr-gcc
+
+export MCU = atmega2560
+export TARGET_ARCH = -mmcu=$(MCU)
+
+export CFLAGS =  -Wall -I. -DF_CPU=16000000 -Os #-g
+export LDFLAGS = -g $(TARGET_ARCH) -lm -Wl,--gc-sections #	-Os
+
+TARGET = usb
+TERM = /dev/ttyACM0
+CPPFLAGS = -mmcu=$(MCU)
+PGMERISP = -c stk500v2 -b 115200 -P $(TERM)
+ARVDUDECONF= -C /usr/local/arduino/arduino-0022/hardware/tools/avrdude.conf
+export DUDE = /usr/bin/avrdude -F -v -p $(MCU) $(AVRDUDECONF)
+
+C_SRC = $(wildcard *.c)
+OBJS = $(C_SRC:.c=.o)
+
+all: $(TARGET).hex
+
+clean:
+	rm -f *.o *.hex *.elf
+
+%.o:%.c
+	$(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o $@
+
+$(TARGET).elf: $(OBJS)
+	$(CC) $(LDFLAGS) -o $@ $(OBJS)
+
+$(TARGET).hex: $(TARGET).elf
+	avr-objcopy -j .text -j .data -O ihex $(TARGET).elf $(TARGET).hex
+	avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex $(TARGET).elf eeprom.hex
+
+upload: $(TARGET).hex
+	stty -F $(TERM) hupcl # reset
+	$(DUDE) $(PGMERISP) -U flash:w:$(TARGET).hex
+	make clean
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+#include <avr/io.h>
+#include <util/delay.h>
+
+int main(void){
+	DDRC = 0x01;
+
+	while(1){
+		PORTC = 0x01;
+		_delay_ms(200);
+		PORTC = 0x00;
+		_delay_ms(200);
+	}
+	return 0;
+}
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+https://www.arduino.cc/en/uploads/Main/arduino-mega2560-schematic.pdf
+