license and fixes

2 files changed, 37 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index 5f0a6db..40f457a 100644
--- a/Makefile
+++ b/Makefile
@@ -368,7 +368,7 @@ ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
 # Default target.
 all: begin directories gccversion sizebefore build sizeafter end
 
-directories: .dep obj
+directories: .dep obj obj/usbdrv
 
 .dep:
 	mkdir .dep
@@ -376,6 +376,9 @@ directories: .dep obj
 obj:
 	mkdir obj
 
+obj/usbdrv: obj
+	mkdir obj/usbdrv
+
 # Change the build target to build a HEX file or a library.
 build: elf hex eep lss sym
 #build: lib
@@ -426,6 +429,7 @@ gccversion :
 
 
 # Program the device.  
+flash: program
 program: $(TARGET).hex $(TARGET).eep
 	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)
 	$(AVRDUDE_WRITE_EEPROM)
@@ -594,4 +598,4 @@ clean_list :
 # Listing of phony targets.
 .PHONY : all begin finish end sizebefore sizeafter gccversion \
 build elf hex eep lss sym coff extcoff \
-clean clean_list program debug gdb-config
+clean clean_list flash program debug gdb-config
diff --git a/main.c b/main.c
index 9f287a5..f47d043 100644
--- a/main.c
+++ b/main.c
@@ -1,3 +1,34 @@
+// USB HID test
+// Copyright (C) 2014 Florian Jung
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+
+/* Setup:
+
+   lfuse: 0xe0
+   hfuse: 0xd9
+
+   attach a 12MHz quartz to the atmega8, using the appropriate XTAL pins.
+
+   connect avr.PD{2,3} over 68 Ohm to usb.DATA{+,-}
+   connect usb.DATA{+,-} over 3v6-Z-Diode ( ----|<---- ) to GND
+   connect usb.DATA- over 1.5kOhm to usb.Vcc
+   connect usb.GND to avr.GND.
+*/
+
 #define F_CPU 12000000L
 
 #include <avr/io.h>