Elastic Sheep

Because elasticdog was already taken

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Entries Tagged as 'avrispmkii'

Installing the LUFA TeensyHID bootloader

January 5th, 2010 · 48 Comments · Uncategorized

The LUFA project contains the TeensyHID bootloader that can be used as a replacement of the original HalfKay bootloader preloaded on the Teensy boards. It can be useful if like me you have completely erased the original flash with an external programmer. Because the HalfKay bootloader is proprietary code and is protected by lock bits, [...]

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Blinking the leds

September 29th, 2009 · No Comments · Project Wiggum

My prototyping of the Wiggum project will begin with the usual blinking leds demo. This will help to establish a simple basis for hardware and software by slowly adding features layer after layer. Building a basic circuit My target is an ATMEGA168. Here is the datasheet. I will use an USB port as the 5V [...]

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Speeding up AVRISPMKII transfers

April 15th, 2009 · No Comments · Uncategorized

Last fall I got an AVRISPMKII to program some ATMEGA168 chips. The programming speed seemed OK back then. But my programs have been steadily growing up in size and soon I had to painfully watch a 4 min progress bar to program only 16kBytes of Flash! The solution: http://www.mail-archive.com/avr-chat@nongnu.org/msg01037.html http://wiki.dataflow.ws/Electronix/AvrIsp2OnOSX It appears the transfer clock [...]

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