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I am going to create a game console. The games will be in an SD card and an Arduino (or an Atmega chip) will read a hex file's contents to RAM and will flash it to another one. Something like this but here, the guy says that this only works for atmega328, and I am planning to use a ATSAM3X8E chip and also I am worried about the power levels (5v - 3v3).

Is there any way for me to use an Atmega chip like Atmega16u2 and use that to flash something like an ATSAM3X8E? If so, what protocol should I use and how may I implement it in my code?

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  • That video isn't really relevant. Unless you want to waste two arduinos for this project, which is a bit wasteful. What you want to do is have the Arduino program itself. This is normally done via a bootloader (at least on the ATMegas). I found a bootloader that updates it main program via a SD card Commented Jul 1, 2020 at 14:20
  • As for the ATSAM, have a look at stackoverflow.com/questions/14960075/… Commented Jul 1, 2020 at 14:23
  • @Gerben I want to waste two arduino's, actually I will use an Atmega16u2 for flashing the ATSAM3X8E from the sd card. Commented Jul 1, 2020 at 14:23
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    @Juraj I need to display a GUI to ask the user about which program to flash. Commented Jul 1, 2020 at 14:26
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    @Juraj how may I flash then? Commented Jul 1, 2020 at 14:36

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