About
AVR Programmer
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This
simple AVR Programmer will allow you to painlessly
transfer hex programs to most ATMEL AVR microcontrollers
without sacrificing your budget and time. It is
more reliable than most other simple AVR programmers
available out there and can be built in very short
amount of time.
AVR programmer consists of
in-circuit serial programmer (dongle) and small
pcb with a DIP socket where you can fit your microcontroller
and have it quickly programmed.
You may also use this programmer
as a stand alone in-circuit serial programmer that
can be used to conveniently program AVR microcontrollers
without removing them from the target circuit.
Entire AVR programmer has been
build with using common parts and fits in the case
of the serial connector. The socket pcb has been
created to fit a 28-DIP AVR ATmega8 microcontroller,
but you can build a socket pcb for any other AVR
microcontroller out there. This AVR programmer is
compatible with a popular PonyProg software that
shows you a status bar of the programming progress.
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AVR
In-Circuit Serial Programmer
AVR
Socket PCB
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Socket PCB has
very minimal number of components and is used for
programming your desired AVR microcontroller outside
of your target circuit.
Socket PCB with 28-DIP AVR ATmega8 microcontroller.
There are two connections; ICSP that connects to
AVR Programmer, and external +5V supply.
Socket PCB consists of
the PCB, 28-DIP socket, 4MHz crystal resonator,
or crystal with two 22pF decoupling capacitors,
and two header connectors. Two-PIN connector supplies
+5V voltage to the AVR microcontroller, and 6-PIN
ICSP connects to AVR Programmer dongle.
Supplying microcontroller with external +5V voltage
as opposed to taking it directly from computer's
serial connection port ensures that the chip is
receiving exactly +5V voltage and provides very
reliable error free programming.
Socket PCB for 28-DIP AVR ATmega8 microcontroller.
+5V voltage
supply for AVR chip may be provided from external
power supply or even better - directly from USB
connection.
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PonyProg
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To be able to
send hex file from your computer to AVR microcontroller
you will need to download and install PonyProg2000.
After the installation, the first thing you will
need to do is configure PonyProg to work with our
AVR Programmer. To do this go to "Setup"
menu and select "Interface Setup". The
following window will be shown and highlighted areas
show you exactly which options should be selected.
In the next step select "AVR micro" and
your microcontroller type that you will be programming
(ex. ATmega8).
At this point PonyProg configuration is complete
and we can open hex program with which AVR microcontroller
will be flashed. Go to "File" menu, select
"Open Program (FLASH) File ...", and point
to the hex file to open it up. You should see hex
numbers as shown on the screen below. If you haven't
connected AVR Programmer dongle to your computer's
serial port yet, then now is the time. Make sure
that AVR Programmer is physically connected to your
AVR microcontroller through Socket PCB or through
ICSP 6-PIN connector. Finally click on the highlighted
icon "Write Program Memory (FLASH)", or
go to "Command" menu and select "Write
Program (FLASH)".
Click on "Yes" button to confirm the programming.
Now sit tight,
relax and watch the programming progress on the
status bar. PonyProg will program AVR microcontroller
and verify if the hex file was transferred without
any errors. For your information this process shouldn't
really take more than 10 to 30 seconds. This depends
on the size of the program that you're trying to
flash.
After programming is completed "Write successful"
window will be shown letting you know that AVR microcontroller
has been programmed, and is now ready to be used.
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