flash works

.gitignore

@@ -48,3 +48,6 @@ Thumbs.db
 *.mov
 *.wmv
 
+# chips
+*.bin
+*.hex

README.md

@@ -1,29 +1,76 @@
-# README #
+# RESSOURCES #
 
-This README would normally document whatever steps are necessary to get your application up and running.
+- https://github.com/m3y54m/start-avr/tree/master
+- avrdude 6.3 doc : https://download-mirror.savannah.gnu.org/releases/avrdude/avrdude-doc-6.3.pdf
 
-### What is this repository for? ###
+## ex00 ##
 
-* Quick summary
+avrdude output without flashing :
-* Version
+```
-* [Learn Markdown](https://bitbucket.org/tutorials/markdowndemo)
+avrdude -p m328p -c arduino -b 115200 -P /dev/ttyUSB0 -v
 
-### How do I get set up? ###
+avrdude: Version 6.3-20171130
+         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
+         Copyright (c) 2007-2014 Joerg Wunsch
 
-* Summary of set up
+         System wide configuration file is "/etc/avrdude.conf"
-* Configuration
+         User configuration file is "/home/hulamy/.avrduderc"
-* Dependencies
+         User configuration file does not exist or is not a regular file, skipping
-* Database configuration
-* How to run tests
-* Deployment instructions
 
-### Contribution guidelines ###
+         Using Port                    : /dev/ttyUSB0
+         Using Programmer              : arduino
+         Overriding Baud Rate          : 115200
+         AVR Part                      : ATmega328P
+         Chip Erase delay              : 9000 us
+         PAGEL                         : PD7
+         BS2                           : PC2
+         RESET disposition             : dedicated
+         RETRY pulse                   : SCK
+         serial program mode           : yes
+         parallel program mode         : yes
+         Timeout                       : 200
+         StabDelay                     : 100
+         CmdexeDelay                   : 25
+         SyncLoops                     : 32
+         ByteDelay                     : 0
+         PollIndex                     : 3
+         PollValue                     : 0x53
+         Memory Detail                 :
 
-* Writing tests
+                                  Block Poll               Page                       Polled
-* Code review
+           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
-* Other guidelines
+           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
+           eeprom        65    20     4    0 no       1024    4      0  3600  3600 0xff 0xff
+           flash         65     6   128    0 yes     32768  128    256  4500  4500 0xff 0xff
+           lfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
+           hfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
+           efuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
+           lock           0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
+           calibration    0     0     0    0 no          1    0      0     0     0 0x00 0x00
+           signature      0     0     0    0 no          3    0      0     0     0 0x00 0x00
 
-### Who do I talk to? ###
+         Programmer Type : Arduino
+         Description     : Arduino
+         Hardware Version: 3
+         Firmware Version: 4.4
+         Vtarget         : 0.3 V
+         Varef           : 0.3 V
+         Oscillator      : 28.800 kHz
+         SCK period      : 3.3 us
 
-* Repo owner or admin
+avrdude: AVR device initialized and ready to accept instructions
-* Other community or team contact
+
+Reading | ################################################## | 100% 0.00s
+
+avrdude: Device signature = 0x1e950f (probably m328p)
+avrdude: safemode: lfuse reads as 0
+avrdude: safemode: hfuse reads as 0
+avrdude: safemode: efuse reads as 0
+
+avrdude: safemode: lfuse reads as 0
+avrdude: safemode: hfuse reads as 0
+avrdude: safemode: efuse reads as 0
+avrdude: safemode: Fuses OK (E:00, H:00, L:00)
+
+avrdude done.  Thank you.
+```

module00/ex00/Makefile

@@ -1,11 +1,50 @@
-# Set the frequency of the CPU (in Hz)
+# frequency of the CPU (in Hz)
 F_CPU = 16000000UL
+TARGET = main
+CC = avr-gcc
+
 
 all: hex flash
 
-hex:
+# ls /dev/tty* : /dev/ttyUSB0
+hex: $(TARGET).hex
 
+# avr-gcc : compiler for AVR microcontrollers, https://gcc.gnu.org/wiki/avr-gcc#Using_avr-gcc, https://gcc.gnu.org/onlinedocs/gcc/AVR-Options.html
+#   -mmcu : the target microcontrolle (ATmega328P)
+#   -D : defines a preprocessor macro (#define F_CPU <value>)
+#   -o : output filename
+$(TARGET).bin: $(TARGET).c
+	$(CC) -mmcu=atmega328p -D F_CPU=$(F_CPU) $(TARGET).c -o $(TARGET).bin
+
+
+# avr-objcopy : man avr-jobcopy, https://linux.die.net/man/1/avr-objcopy
+#   -O : specifies output format, Intel HEX
+#        some formats (list not found in any doc) :
+#        -O ihex : Used for flashing AVR chips
+#        -O binary : Raw binary file
+#        -O elf32-avr : Used for debugging
+$(TARGET).hex: $(TARGET).bin
+	avr-objcopy -O ihex $(TARGET).bin $(TARGET).hex
+
+
+# avr-dude : AVR Downloader/UploaDEr, upload firmware, https://avrdudes.github.io/avrdude, v6.3 https://download-mirror.savannah.gnu.org/releases/avrdude/avrdude-doc-6.3.pdf
+#   -p : specifies the microcontroller -> m328p
+#   -c : programmer-id
+#   -b : baud rate for serial communication
+#   -P : the serial port, found with `ls /dev/tty*` -> /dev/ttyUSB0
+#   -U : Uploads (w = write) the HEX firmware file to the flash memory
+#   (-v : verbose info dump)
 flash:
+	avrdude -p m328p -c arduino -b 115200 -P /dev/ttyUSB0 -v
+#	avrdude -p m328p -c arduino -b 115200 -P /dev/ttyUSB0 -U flash:w:$(TARGET).hex
+
+
+dump:
+	avrdude -p m328p -c arduino -b 115200 -P /dev/ttyUSB0 -U flash:r:dump_atmega328p.hex
+
 
 clean:
-    rm -f main.hex main.bin
+	rm -f main.hex main.bin
+
+
+.PHONY : all clean hex flash dump

module00/ex00/main.c

@@ -1,3 +1,3 @@
-int main() {
+int main()
-    return 0;
+{
 }