Booting ATMEGA2560

Hi all ,

I have just designed a board with a JTAG interface and ISP interface
( with some good advice from past discussions on this forum)and have
also bought the JTAG programmer. Now before I send the board for
layout , I am looking at the nitty gritty of bootloading a hello world
programme ( flashing leds!)  on it. Does the ATMEL parts come
preprogrammed with a standard bootloader in the boot section of the
flash , so that I can compile link and load using the AVRISP mkII? If
yes what are the functionalities of the boot loader?

If no are there any example bootloader for ATmega which i could use to
start off, without reinventing the wheel.


BR
Rate

On Oct 19, 11:30 am, ratemonotonic <niladri1...@gmail.com> wrote:

> preprogrammed with a standard bootloader in the boot section of the
> flash , so that I can compile link and load using the AVRISP mkII? If

By definition, you do not need any code in the micro in order to
program over ISP.

"ratemonotonic" <niladri1979@gmail.com> skrev i meddelandet 
news:1192807850.637196.324650@q3g2000prf.googlegroups.com...
> Hi all ,
>
> I have just designed a board with a JTAG interface and ISP interface
> ( with some good advice from past discussions on this forum)and have
> also bought the JTAG programmer. Now before I send the board for
> layout , I am looking at the nitty gritty of bootloading a hello world
> programme ( flashing leds!)  on it. Does the ATMEL parts come
> preprogrammed with a standard bootloader in the boot section of the
> flash , so that I can compile link and load using the AVRISP mkII? If
> yes what are the functionalities of the boot loader?
>
> If no are there any example bootloader for ATmega which i could use to
> start off, without reinventing the wheel.
>
>
> BR
> Rate
>
It is enough to download AVR Studio connect the AVR ISP
to the ISP interface.
No need for a bootloader.
If you want to be able to do field upgrade later, without the
AVR ISP or a JTAG ICE; then there are some application
notes available on www.atmel.com or www.avrfreaks.net


-- 
Best Regards,
Ulf Samuelsson
This is intended to be my personal opinion which may,
or may not be shared by my employer Atmel Nordic AB 

On 19 Oct, 20:28, "Ulf Samuelsson" <u...@a-t-m-e-l.com> wrote:
> "ratemonotonic" <niladri1...@gmail.com> skrev i meddelandetnews:1192807850.637196.324650@q3g2000prf.googlegroups.com...
>
>
>
> > Hi all ,
>
> > I have just designed a board with a JTAG interface and ISP interface
> > ( with some good advice from past discussions on this forum)and have
> > also bought the JTAG programmer. Now before I send the board for
> > layout , I am looking at the nitty gritty of bootloading a hello world
> > programme ( flashing leds!)  on it. Does the ATMEL parts come
> > preprogrammed with a standard bootloader in the boot section of the
> > flash , so that I can compile link and load using the AVRISP mkII? If
> > yes what are the functionalities of the boot loader?
>
> > If no are there any example bootloader for ATmega which i could use to
> > start off, without reinventing the wheel.
>
> > BR
> > Rate
>
> It is enough to download AVR Studio connect the AVR ISP
> to the ISP interface.
> No need for a bootloader.
> If you want to be able to do field upgrade later, without the
> AVR ISP or a JTAG ICE; then there are some application
> notes available onwww.atmel.comorwww.avrfreaks.net
>
> --
> Best Regards,
> Ulf Samuelsson
> This is intended to be my personal opinion which may,
> or may not be shared by my employer Atmel Nordic AB- Hide quoted text -
>
> - Show quoted text -

thanks, Very good !  So I can get started developing code easy peasy!
an worry about field upgrade at a later stage.