arduino : An open-source AVR electronics prototyping platform ( http://arduino.cc/ https://arduino.googlecode.com/ )
avarice : Interface for GDB to Atmel AVR JTAGICE in circuit emulator ( http://avarice.sourceforge.net/ )
avr-libc : C library for Atmel AVR microcontrollers ( http://www.nongnu.org/avr-libc/ )
avrdude : AVR Downloader/UploaDEr ( http://savannah.nongnu.org/projects/avrdude )
bitbake : package management tool for OpenEmbedded ( http://git.openembedded.org/bitbake/ )
dc-tool-ip : ethernet program loader for the Dreamcast ( http://cadcdev.sourceforge.net/ )
dfu-programmer : A Device Firmware Update based USB programmer for Atmel chips ( http://dfu-programmer.sourceforge.net )
ftdi_eeprom : Utility to program external EEPROM for FTDI USB chips ( http://www.intra2net.com/en/developer/libftdi/ )
gnap : Gentoo-based Network Appliance building system ( https://embedded.gentoo.org/gnap.xml )
gnap-dev : Gentoo-based Network Appliance building system development tools ( https://embedded.gentoo.org/gnap.xml )
gnap-ext : Gentoo-based Network Appliance extensions and remastering tool ( https://embedded.gentoo.org/gnap.xml )
gnome-avrdude : GNOME GUI for avrdude ( http://www.sourceforge.net/projects/gnome-avrdude/ )
gnusim8085 : A GTK2 8085 Simulator ( http://gnusim8085.org )
gpsim : A simulator for the Microchip PIC microcontrollers ( http://gpsim.sourceforge.net )
gputils : Collection of tools including assembler, linker and librarian for PIC microcontrollers ( http://gputils.sourceforge.net/ )
icdprog : Microchip PIC Programmer using ICD hardware ( http://icdprog.sf.net/ )
include : A collection of useful, independent include files for C/Assembler developers ( http://openwince.sourceforge.net/include/ )
jal : A high-level language for a number of Microchip PIC and Ubicom SX microcontrollers ( http://jal.sourceforge.net/ )
jtag : Software for working with JTAG-aware (IEEE 1149.1) devices (parts) and boards through JTAG adapter ( http://openwince.sourceforge.net/jtag/ )
kobs-ng : utility to write u-boot images to NAND on Freescale iMX devices ( http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX6_SW )
libdisasm : Library for providing basic disassembly of Intel x86 instructions from a binary stream ( http://bastard.sourceforge.net/libdisasm.html )
libftd2xx : Library that allows a direct access to a USB device ( http://www.ftdichip.com/Drivers/D2XX.htm )
libftdi : Userspace access to FTDI USB interface chips ( http://www.intra2net.com/en/developer/libftdi/ )
lpc21isp : In-circuit programming (ISP) tool for the NXP microcontrollers ( http://sourceforge.net/projects/lpc21isp/ )
mspdebug : A free debugger for use with MSP430 MCUs ( http://dlbeer.co.nz/mspdebug/ https://github.com/dlbeer/mspdebug )
openocd : OpenOCD - Open On-Chip Debugger ( http://openocd.sourceforge.net )
parapin : A parallel port pin programming library ( http://parapin.sourceforge.net/ )
picasm : An assembler and disassembler for 12 and 14-bit PIC chips ( http://www.iki.fi/trossi/pic/ )
picp : A commandline interface to Microchip's PICSTART+ programmer ( http://home.pacbell.net/theposts/picmicro/ )
picprog : A PIC16, PIC18 and dsPIC microcontroller programmer software for the serial port ( http://www.iki.fi/hyvatti/pic/picprog.html )
pikdev : Simple graphic IDE for the development of PIC-based applications ( http://pikdev.free.fr/ )
pista : Commandline-driven interface to PICSTART+ PIC programmer ( http://gatling.ikk.sztaki.hu/~kissg/pd/pista/pista.html )
pk2-la : Logic Analyzer and I/O Probe for the Microchip PICkit2 ( http://sourceforge.net/projects/pk2-la )
pk2cmd : An application for working with the Microchip PicKit2 PIC programmer ( http://www.microchip.com/pickit2 )
ponyprog : Serial device programmer ( http://www.lancos.com/ppwin95.html )
powersoftplus-libftdi : Library which includes a table of VIDs and PIDs of Ever UPS devices ( http://www.ever.com.pl )
scratchbox : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-apt-https : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-cputransp : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-debian : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-debian-squeeze : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-doctools : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-git : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-maemo3 : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-perl : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-qemu : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-devkit-svn : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-toolchain-cs2005q3_2-glibc2_5 : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-toolchain-cs2007q3-glibc2_5 : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-toolchain-cs2009q1-203sb1 : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-toolchain-cs2009q1-eglibc2_8 : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox-toolchain-cs2009q3-eglibc2_10 : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.scratchbox.org/ )
scratchbox2 : A cross-compilation toolkit designed to make embedded Linux application development easier ( http://www.freedesktop.org/wiki/Software/sbox2 )
sdcc : Small device C compiler (for various microprocessors) ( http://sdcc.sourceforge.net/ )
sgpp-lite-arm-eabi-bin : regular, validated releases of the GNU Toolchain for ${CPU} processors by CodeSourcery ( http://www.codesourcery.com/sgpp/lite/${CPU} )
sgpp-lite-arm-linux-bin : regular, validated releases of the GNU Toolchain for ${CPU} processors by CodeSourcery ( http://www.codesourcery.com/sgpp/lite/${CPU} )
sgpp-lite-arm-uclinux-bin : regular, validated releases of the GNU Toolchain for ${CPU} processors by CodeSourcery ( http://www.codesourcery.com/sgpp/lite/${CPU} )
smdk-dltool : Tool to communicate with Samsung SMDK boards ( http://www.fluff.org/ben/smdk/tools/ )
srecord : A collection of powerful tools for manipulating EPROM load files ( http://srecord.sourceforge.net/ )
sunxi-tools : Tools for Allwinner A10 devices. ( http://linux-sunxi.org/ )
tavrasm : Compiles code written for Atmels AVR DOS assembler ( http://www.tavrasm.org/ )
tigcc : Cross compiler for Texas Instruments TI-89, TI-92(+) and V200 calculators ( http://tigcc.ticalc.org/ )
u-boot-tools : utilities for working with Das U-Boot ( http://www.denx.de/wiki/U-Boot/WebHome )
uisp : tool for AVR microcontrollers which can interface to many hardware in-system programmers ( http://savannah.nongnu.org/projects/uisp )
upslug2 : util for flashing NSLU2 machines remotely ( http://www.nslu2-linux.org/wiki/Main/UpSlug2 )
urjtag : tool for communicating over JTAG with flash chips, CPUs, and many more (fork of openwince jtag) ( http://urjtag.sourceforge.net/ )
usbprog : flashtool for the multi purpose programming adapter usbprog ( http://www.embedded-projects.net/index.php?page_id=215 )
zmac : Z80 macro cross-assembler ( http://www.tim-mann.org/trs80resources.html )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gentoo
For Paludis use this rsync : rsync://gentoo.zugaina.org/gentoo-portage
If you have a problem : ycarus(-at-)zugaina.org