They are used in everything from the Redboard Turbo to the Raspberry Pi to most cellphones, but that's a large range of performance. Let's start with what an ARM processor is. You still need to add a bootloader to use them with Arduino, and since ARM programmers are also a little more complicated than AVR programmers you'll want to invest in a stand alone programmer instead of trying to use the Uno you have laying around. One advantage of the newer chips is that they generally do not need a USB-to-serial adapter instead they have USB built in (at least the ones we are using do). But now the market is maturing and we are looking at a lot more ARM chips. We've programmed ATMega328s (and 168s, and 8s before that), written tutorials, and hacked all sorts of fun projects. SparkFun has been a fan of Arduino for a long time. Installing an Arduino Bootloader tutorial. If you are using an AVR microcontroller with an Arduino bootloader using ICSP pins, you'll need to head on over to the

J-Link EDU Mini or J-Link EDU Base) to connect to the port. You will need a dedicated programmer (i.e. Heads up! This tutorial was written for ARM microcontrollers with SWD or JTAG pins.

Jtag pinout download free