User:Sandip Pune: Difference between revisions

Revision as of 20:29, 15 January 2010

how to Download the programme file for hello world circuits
There are three steps need to follow to complete the task
1 write code for assembly if you are writing new codes or use assembly code available for hello circuit.
2 compile assembly code to hex code using "gvrasm"
3 download the hex AVR using "avrdude"

# Step1

if working on a linux/Ubuntu, go to the terminal window
to search the assembly file in the PC, type "which_ file".
then change to the directory where the assembly file is by using command "cd name of directory"
type "Ls" to see list of file.there asm file will appers.

# Step 2

in the terminal window type "gavrasm file.MTA.asm, hit enter
assembly file will convert to hex file and this file is ready to send to the micro controller of circuit.

#Step3

download "avrdude in-circuit programmer" from URL http://fab.cba.mit.edu/about/fab/
avrdude programmer for different Tyne microcontroller are
tiny45 load hex file, bsd cable: avrdude -p t45 -c bsd -U flash:w:file.hex
tiny45 load hex file, dasa cable: avrdude -p t45 -P /dev/ttyUSB0 -c dasa -U flash:w:file.hex
tiny45 load hex file, dragon: avrdude -p t45 -P usb -c dragon_isp -U flash:w:file.hex
tiny44 load hex file: avrdude -p t44 -c bsd -U flash:w:file.hex
tiny44 use 20 MHz xtal: avrdude -p t44 -c bsd -U lfuse:w:0x7E:m
mega88 load hex file: avrdude -p m88 -c bsd -U flash:w:file.hex
mega88 use 20 MHz xtal: avrdude -p m88 -c bsd -U lfuse:w:0x76:m
mega644 load hex file: avrdude -p m644 -c bsd -U flash:w:file.hex
mega644 use 20 MHz xtal: avrdude -p m644 -c bsd -U lfuse:w:0x76:m
if you are using tiny 45 microcontroller with serial port and ICP cable then select avrdude -p t45 -c bsd -U flash:w:file.hex
in the terminal window type, avrdude -p t45 -c bsd -U flash:w:file.hex eg. avrdude -p t45 -c bsd -U flash:w:hello.RGB.45.MTA.hex
connect circuit serial port to computer and power supply to circuit
after doing this hit enter in the terminal window the message appears as shown in "Image:AVRDUDE.png
circuit is ready with programme.
if you get the message as shown in

@@ Line 27: / Line 27: @@
 #in the terminal window type, avrdude -p t45 -c bsd -U flash:w:file.hex     eg. avrdude -p t45 -c bsd -U flash:w:hello.RGB.45.MTA.hex
 #connect circuit serial port to computer and power supply to circuit
-#after doing this hit enter in the terminal window the message appears as shown in "
+#after doing this hit enter in the terminal window the message appears as shown in [["Image:AVRDUDE.png]]
+#circuit is ready with programme.
+#if you get the message as shown in