NAME Device::GBA - Perl Interface to the Gameboy Advance VERSION version 0.002 SYNOPSIS use Device::GBA; my $gba = Device::GBA->new(buspirate => '/dev/ttyUSB0') or die "No such device!\n"; $gba->upload('helloworld.gba'); DESCRIPTION The Nintendo Gameboy Advance can either boot from cartridge or over link cable. The latter is caled multiboot mode and is basically SPI and a homebrew encoding scheme. Unfortunately, the Bus Pirate doesn't have a 100k SPI mode, so we are using 125000 instead. If you encounter problems with booting, use the next lower speed (30000) as bitrate. This utility allows uploading multiboot GBA images via Device::Chip::Adapters. Don't forget to pass -specs=gba_mb.specs to devkitARM GCC if you want to link a multiboot image. The package's share/ subdirectory contains an example Makefile for cross-compilation. The wiring is as follows: GBA Bus Pirate SO --> MISO SI <-- MOSI CLK <-- CLK GND --- GND (Note to myself:) The cable I made looks like this: ___________________ .--------GND (white)----/ .-------._ | | .-----SD (black)------------|SD (B) |_ | | | .--SO (yellow)---, -|SC (R) |_--+-. _|__|__|_ \ -|GND (W)|_--' | / 6 4 2 \ \____-|SO (Y) |_ | \_5_ 3 _1_/ ___-|SI (O) |_ | | \_/ '-- VDD (n/a) / '-------' | | '----- SI (orange) ---/ | '-------- SC (red) --------------------------' Note: This is still work in progress! METHODS AND ARGUMENTS new() Opens specified device and returns the corresponding object reference. Returns undef if an attempt to open the device has failed. Accepts following parameters: adapter An instance of Device::Chip::Adapter capable of SPI communication. verbose if true, methods on this instance will narrate what they're doing. Default is 0. upload $gba->upload($firmware_file) Reads in $firmware_file and uploads it to the Gameboy Advance. spi_readwrite $miso = $gba->spi_readwrite($mosi) reads and writes 32 bit from the SPI bus. crc $c = Device::GBA::crc($w, [$c = 0x0000c387]) Calculates CRC for word $w and CRC $c according to the algrithm used by the GBA multiboot protocol. GIT REPOSITORY http://github.com/athreef/Device-GBA SEE ALSO gba -- The command line utility AUTHOR Ahmad Fatoum , http://a3f.at Based on The uploader written by Ken Kaarvik. COPYRIGHT AND LICENSE Copyright (C) 2018 Ahmad Fatoum This library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License v2.0 or later.