Abstract: Cooperative Asymmetric Multiprocessing allows for operating systems to function independently of each other on multiple processors sharing common resources in an embedded system. However, some degree of cooperation is required because there are resources with single instances shared across both cores, such as interrupt controller, boot sequencer, DMA engines, etc. The ability to support two distinct operating systems independently gives valuable flexibility. This method allows for reduced complexity in a multi processor system and allows use of existing tools with minimal modifications.