README


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ToyKeeper's flashlight firmware repository
==========================================

This is a collection of firmware for flashlights or torches, mostly 
collected from BLF (http://budgetlightforum.com/).  It's collected 
here mostly for convenience, and to provide bug tracking and revision 
control services for the code.


Getting Started
===============

A general overview of what you need to get going is here:

  http://flashlightwiki.com/AVR_Drivers

To set up an attiny dev environment on Ubuntu (13.10):

  sudo apt-get install flex byacc bison gcc libusb-dev libc6-dev
  sudo apt-get install gcc-avr avr-libc binutils-avr
  sudo apt-get install avrdude avrdude-doc

Installing attiny dev tools on UNIX systems in general:

  http://www.ladyada.net/learn/avr/setup-unix.html

To build a .hex file from a .c file, in Windows:

  http://budgetlightforum.com/node/29081

After wiring everything up, this tests the connection to the ATTINY13A chip:

  avrdude -p t13 -c usbasp -n
  (you may need to put 'sudo' in front, on UNIX systems)

To flash NLITE, which is a good second test...  (this is the output from my
terminal, which may or may not be quite correct...  not sure what the sck
period error is about, and the verify fails, but it otherwise works)

  ~/src/torches/DrJones/NLITE/> sudo avrdude -p t13 -c usbasp -u -Uflash:w:nlite.hex:a -Ulfuse:w:0x75:m -Uhfuse:w:0xFF:m

  avrdude: warning: cannot set sck period. please check for usbasp firmware update.
  avrdude: AVR device initialized and ready to accept instructions

  Reading | ################################################## | 100% 0.00s

  avrdude: Device signature = 0x1e9007
  avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed
           To disable this feature, specify the -D option.
  avrdude: current erase-rewrite cycle count is -268439553 (if being tracked)
  avrdude: erasing chip
  avrdude: warning: cannot set sck period. please check for usbasp firmware update.
  avrdude: reading input file "nlite.hex"
  avrdude: input file nlite.hex auto detected as Intel Hex
  avrdude: writing flash (524 bytes):

  Writing | ################################################## | 100% 0.44s


  avrdude: 524 bytes of flash written
  avrdude: verifying flash memory against nlite.hex:
  avrdude: load data flash data from input file nlite.hex:
  avrdude: input file nlite.hex auto detected as Intel Hex
  avrdude: input file nlite.hex contains 524 bytes
  avrdude: reading on-chip flash data:

  Reading | ################################################## | 100% 0.30s


  avrdude: verifying ...
  avrdude: verification error, first mismatch at byte 0x0004
           0x37 != 0x13
  avrdude: verification error; content mismatch

  avrdude done.  Thank you.

  [1]    21327 exit 1     sudo avrdude -p t13 -c usbasp -u -Uflash:w:nlite.hex:a -Ulfuse:w:0x75:m