How to build it own Arduino Due?

Projects General Guidance
1

Hi,

I would like to know how to build my own Arduino Due!
I have seen the schematic of the Arduino Due, but in the schematic, we can found an ATMEGA16U2-MU. So it's mean that you have to progam this microchip. But do know where we can found this code?

I have also think to change the ATMEGA16U2-MU by an FTDI 232. But with this solution, we can't have RESET_CMD and ERASE_CMD.
Is that really important ?

Do you have some solution for me?

Thanks
Sani300

2

Hi,

I would like to know how to build my own Arduino Due!
I have seen the schematic of the Arduino Due, but in the schematic, we can found an ATMEGA16U2-MU. So it's mean that you have to progam this microchip. But do know where we can found this code?

I have also think to change the ATMEGA16U2-MU by an FTDI 232. But with this solution, we can't have RESET_CMD and ERASE_CMD.
Is that really important ?

Do you have some solution for me?

Thanks
Sani300

3

Sani300:
Hi,

I would like to know how to build my own Arduino Due!
I have seen the schematic of the Arduino Due, but in the schematic, we can found an ATMEGA16U2-MU. So it's mean that you have to progam this microchip. But do know where we can found this code?

Ummm.... have you looked on the Due page?

http://arduino.cc/en/Main/arduinoBoardDue

4

Sani300:
I have also think to change the ATMEGA16U2-MU by an FTDI 232. But with this solution, we can't have RESET_CMD and ERASE_CMD.
Is that really important ?

Do you have some solution for me?

The "standard" FTDI programming cable has DTR which can be used to toggle reset, you could have a "boot" button on the board which the user is required to press before programming.

I am looking into creating a programming cable which can control both reset and boot/erase lines, but that requires an FTDI breakout with more lines, or using a Pro Micro. In either case it requires new versions of software to toggle both lines.