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Copyright

 © 

Kanda 2013

14

There are example C Projects in Sample Code folder in Kanda AVR folder. Create a
project without creating an initial file and then add a C file as source file, just like
assembler.

Alternatively, you can open a C project file (*.aps) from C Sample code folder.

Important

The C compiler is a plug-in for AVR Studio and is not directly controlled by it, so there
are some important points to be aware of

1.  C projects must have AVR device set correctly, unlike assembler files which are not

so fussy, otherwise code will not run.

2.  Changing device in AVR Studio project does NOT change device in C compiler. You

need to go to 

Project > Configuration Options

 and change device there as well.

Also on this screen, make sure 

Create Hex File

 is checked.

3.  Output files are stored in a sub-folder called Default

Embedded C Book

There is a PDF book on Embedded C Programming in Embedded C Book folder. It
covers the basics of writing C for AVR microcontrollers but uses IAR C compiler instead
of WinAVR and AVR Studio.  A free 4KB limited version of the IAR compiler, called Kick
Start, is available for download from IAR. It is similar to WinAVR but produces smaller
code and has lots of advanced features.

Summary of Contents for STK300

Page 1: ...nt We recommend that you do install these unless you already have them on your PC There are three main pieces of software AVRISP This is the programmer software used for transferring code from the PC...

Page 2: ...nnect up the hardware and program some sample files on to the board using AVRISP before tackling writing code in AVRStudio However it is up to you There is also a book in Kanda AVR folder called Get G...

Page 3: ...12VAC or 9 15VDC with a current capacity greater than 300mA AVRISP software Now run the AVRISP software A Green Light should appear at the bottom of the screen with the message ISP Initialized Detect...

Page 4: ...e procedure or type data directly into the buffer in Hex numbers or ASCII characters Programming the AVR All operations on the AVR chip are carried out from the Device Menu Note AVR devices must be er...

Page 5: ...d Lockbits Click on the Fuses and Lockbits Tab to view the Fuse screen These are settings on the Atmega128 that can be altered to affect the way the device runs and interacts with the circuit The defa...

Page 6: ...rates at 5V If it is off the board operates at 3 3V Notes 1 If the board is set to 3 3V the brownout circuit should be set to 2 9V by removing JP2 2 The ISP interface is supplied with 5V regardless of...

Page 7: ...used in conjunction with the Analog header if Analog to Digital function is used ADC Circuit The ADC circuit uses Port F and the 4 way Header marked Analog To use the ADC with the Internal Reference P...

Page 8: ...nd programming debugging interface next to the mounted AVR chip This connector should NOT be used for normal ISP operations It has the recommended Atmel JTAG Interface pin out and can be used with JTA...

Page 9: ...board is not designed for use with back lit LCD modules so the extra connections needed are not included and the power supply will not supply the current required The LCD can be driven in Memory Mappe...

Page 10: ...ega128 datasheet Pull ups must be enabled on these lines Switches and Bar LED There is a 10 way bar LED fitted to the board One LED is Power labeled ON and should be on when the board is powered The n...

Page 11: ...er The board schematics are also available on the CD AVR Studio AVR Studio is Atmel s development environment Documentation is available in the AVR Studio folder in default install path There is a sub...

Page 12: ...the next screen 1 Set Debug platform to AVR Simulator unless you have an In Circuit Emulator such as our JTAGAVR In this case choose JTAG ICE 2 Set Device to Atmega128 3 Click Finish Button Now the p...

Page 13: ...added to AVR Studio Tools menu if it is installed after AVR Studio The default installer for STK300 will install them in the correct order To run AVRISP from AVR Studio go to Tools Menu Kanda Tools AV...

Page 14: ...ot so fussy otherwise code will not run 2 Changing device in AVR Studio project does NOT change device in C compiler You need to go to Project Configuration Options and change device there as well Als...

Page 15: ...e set Debug Platform to JTAG ICE not AVR Simulator The list of available devices is much smaller as only some AVR devices have the JTAG Interface Choose Atmega128 For more device support and the optio...

Page 16: ...rent version or install a new Service Pack then it may want to do a firmware update using the built in AVRProg software Serial port versions of JTAGAVR will update fine but USB versions will not be fo...

Page 17: ...upply add ons for the STK300 including LCD modules keypads Flash RAM 24C EEPROMs extra mounted Atmega128 devices ICE and a universal power supply Flash RAM and Address Latch see www kanda com go STK20...

Page 18: ...2013 18 Website www kanda com Email sales kanda com Tech support support kanda com Support Pages www kanda com support Phone 44 0 8707 446 807 Fax 44 0 8707 446 807 Address Canolafan Llanafan Aberystw...

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