Editing Using The ISP Shield 2

This page covers basic usage of the Evil Mad Science [[ISP_Shield_2|ISP Shield 2.0]]


== ...To program the Arduino Bootloader onto an ATmega168/ATmega328 ==

#Attach the ISP Shield 2.0 to the Arduino. If using Arduino Uno, put a piece of insulating tape on top of the USB connector of the Uno to prevent the bottom of the shield from shorting against the connector housing.
#Connect the Arduino to your computer and bring up the Arduino IDE
#If necessary, configure the Arduino IDE for your Arduino or Arduino clone
#In the '''File''' menu, select '''Examples''', and open the '''ArduinoISP''' sketch
#Upload this sketch to your Arduino or Arduino clone
#At this time place an ATmega168 or ATmega328 into the ZIF socket on the ISP Shield 2.0 and lock it in place
#In the '''Tools''' menu, select '''Board''', and select either:
#* '''Arduino Duemilanove or Nano w/ ATmega328''' if you are programing an ATmega328
#* '''Arduino Diecimila, Duemilanove, or Nano w/ ATmega168''' if you are programing an ATmega168
#In the '''Tools''' menu, select '''Burn Bootloader''', and select '''w/ Arduino as ISP'''

== ...To program the Arduino Bootloader onto an ATmega168/ATmega328 located on an external target board ==

You can also use the ISP Shield 2.0 to program the Arduino bootloader onto an external target board, providing that the target is Arduino compatible and has a standard 6-pin* AVR ISP programming header.  

Follow the instructions above, however instead of placing a microcontroller into the ZIF socket connect the ISP Shield 2.0 to the target board with a 6 pin (2x3 DIL) ribbon cable.  Be sure to get the orientation correct; pin 1 is marked with an arrow on the ISP Shield 2.0 circuit board.

In addition, make sure that the target power jumper is set correctly on the ISP Shield 2.0. If your target board has its own power, the jumper (location J5) should be set to 'Nope', like so:

http://cdn2.evilmadscience.com/wiki/ispshield/assy_v2/27.jpg

It is important to make sure that your target is genuinely Arduino compatible, and that you select the appropriate target board type from the Arduino Tools menu.
If you are programming an ATmega168 your target board will need the appropriate crystal and related capacitors.
If you are programming an ATmega328 your target board may have an appropriate crystal and related capacitors. However if you wish to use the internal oscillator instead you need to install support for an additional hardware configuration. Check the [http://arduino.cc/en/Tutorial/ArduinoToBreadboard From Arduino to a Microcontroller on a Breadboard] tutorial by the Arduino Team - under the '''Minimal Circuit (Eliminating the External Clock)''' section there are instructions for downloading and installing the '''ATmega328 on a breadboard (8 MHz internal clock)''' hardware configuration in the Arduino IDE. Once installed, select this Board type when programming an ATmega328 on an external target board that has no crystal.


== ...To use the ISP Shield 2.0 in place of an AVR ISP ==

The ArduinoISP sketch mimics the [http://www.atmel.com/ Atmel] [http://www.atmel.com/dyn/products/tools_card.asp?tool_id=2726 AVRISP] programmer. The Arduino IDE won't let you use it to upload sketches, but you can use [http://savannah.nongnu.org/projects/avrdude avrdude] to upload compiled programs to an ATmega168/ATmega328 via the ISP Shield 2.0 ZIF socket or either of the ISP headers.

When using an Arduino and ArduinoISP in this capacity the avrdude programmer type should be set to 'avrisp'. If you are using Windows avrdude may not be able to use the Arduino unless it is attached to COM port 9 (COM9) or lower. To change the port number that a device is attached to first locate it in the Device Manager: in the '''System Properties''' control panel, select the '''Hardware''' tab, then click the '''Device Manager''' button, and finally expand the '''Ports (COM & LPT)''' item. Right click the appropriate device for your Arduino and select '''Properties''' option, select the '''Port Settings''' tab, and click the button labeled '''Advanced...'''. Select a new unused port in the '''COM Port Number''' drop-down selection box.

Check the avrdude webpage for complete instructions and documentation regarding the use of avrdude.


== Known Issue With Auto-Reset  ==

There is a [http://www.arduino.cc/playground/Code/MegaISP known issue] with auto-reset (a common feature on Arduino boards) and the ArduinoISP technique.   You may, for example, get the "not in sync: resp=0x15" error message.  If so, you may need to disable auto-reset.  The ISP Shield 2.0 has a resistor on board for this eventuality.

Locate header J6 on the ISP Shield 2.0 and connect a jumper across the top and middle pins to override auto-reset, like so:

http://cdn2.evilmadscience.com/wiki/ispshield/assy_v2/28.jpg

Connecting a jumper across the bottom two pins (or leaving the jumper off entirely) will allow the Arduino board to function normally:

http://cdn2.evilmadscience.com/wiki/ispshield/assy_v2/29.jpg


== Known Issue with Arduino Uno ==

According to [http://arduino.cc/en/Tutorial/ArduinoISP official ArduinoISP tutorial], the original Arduino Uno bootloader is not compatible with ArduinoISP as a technique. However, there are many forum posts indicating that the Arduino Uno can indeed run ArduinoISP if the auto-reset is disabled. I [dc42] have successfully used the ISP Shield 2 with the Arduino Uno running Arduino-0022, by selecting the jumper option on the shield to disable auto-reset.

New firmware for the Uno [http://arduino.cc/forum/index.php/topic,64105.msg468857.html#msg468857 is in development], and may be suitable for the adventurous to try.