Chairperson, Graduate Committee: Brock LaMeresTurner, David Lee Douglas2017-02-022017-02-022015https://scholarworks.montana.edu/handle/1/10163It is desired to create an inexpensive, open-source, radiation-tolerant computer for space applications using commercial, off-the-shelf parts and a proven space-grade processor. Building upon previous work to develop the triplicate architecture using MicroBlaze soft-processors, this implementation, using a modification of the popular open-source space-grade LEON3 soft processor from Cobham Gaisler, enables more compatibility with NASA and existing space computing resources. A partially reconfigurable, triple modular redundant LEON3 processor was successfully implemented in a four-core design on an Artix-7 Field Programmable Gate Array to demonstrate an inexpensive and open-source method of developing radiation-hardened-by-architecture computer systems.enField programmable gate arraysRadiationComputer softwareThesisCopyright 2015 by David Lee Douglas Turner