Hardware-software codesign must set which functions should run in a programmable processor and which be implemented in specific peripherals, designed for that purpose. Such a decision is not trivial at all, and, with this aim, several solutions must be evaluated and compared. To this end, several electronic design tools must be used. However, despite computers aiding, Electronics market, specially the consume one, does not allow long times of fabrication, so the features of the different architectures must be estimated anyway. At this point, the design tools are not powerful enough. Therefore, the purpose is finding algorithms in order to estimate the electronic resources consumed and the highest performance reached when designing complex electronic systems in FPGAs.