Bootloaders for AT90USB1286
While the AT90USB1286 MCU in the Teensylu/Printrboard can be programmed with an ICSP or JTAG programmer, you can also install a bootloader, which will allow you to program it via a USB connection alone. Besides the convenience of not having to attach a hardware programmer, uploading firmware via a USB bootloader is blazingly fast. Also, [...]
grbl CNC Firmware Ported to Printrboard
If you want to use your RepRap for CNC use, such as milling PCB’s, regular 3D printing firmwares might not be ideal. For instance, Marlin is not able to handle the slow step rates used for CNC work. I have ported grbl, a firmware specifically for CNC use (from which Marlin derived its acceleration routines), [...]
Repetier Firmware Now Runs on Printrboard
I spent this past weekend porting Repetier-Firmware to Printrboard and Teensyduino. It took me a while to get it working properly, because the code intermixes calls to fastio and Arduino, and the pin definitions in fastio.h were different from the Teensyduino Arduino library. It is now working pretty well, so Printrboard and Teensylu users now [...]
Running Marlin Firmware on a Printrboard
As of this writing, the official version of Marlin firmware from github does not yet work with Printrboard. Printrboard is a fork of Teensylu, designed by the folks at Printrbot. Printrboard isn’t yet available for purchase, but since the design is open source, anyone can download it and get the PCB’s manufactured themselves. Sprinter is currently [...]
How to Program an AT90USB1286/Teensylu/Printrboard with Arduino and USBtinyISP
My first step in loading Marlin RepRap firmware into the Printrboard is to get Arduino to play nicely with it. The method I am going to describe in this article for programming a Printrboard with Arduino will work with the Teensylu or any other device that uses the AT90USB1286 and has an ICSP connector. [...]