Microcontroller Implementation of the Biased Dual-State DPCM

This work describes in details the microcontroller implementation of our previously proposed method in data compression applications known as the Biased Dual-State DPCM (BDS-DPCM). The focus of this paper is on the Microcontroller implementation of the Biased Dual-State DPCM proposed in our previous work. For this preliminary hardware implementation, MSP-EXP430G2 LaunchPad Development Kit is used which is an easy-to-use microcontroller development board for the low-power applications. The code is written in C programing and imported on the MSP-430 using the CCS Debug-Code Composer Studio. This paper describes in detail different cases when packing delta values into an 8-bit buffer for transmission or storage. Lastly, we developed two Graphical User Interfaces (GUIs) based on our predictive models described in our previous published work. The first GUI allows users to load the delta files and outputs the compression rate for the BDS-DPCM and the conventional DPCM. This allows user to study where the proposed method is superior over the conventional DPCM. The second GUI is designed using the math model to predict the compression rate for different probabilistic parameters which can be inputted by the user. The second GUI allows user to study data with different distributions and to determine where to use the BDS-DPCM over the DPCM method.