Design and Implementation of Direct Memory Access & Compression in PSoC5LP

Abstract

A reliable streaming of sensor data is very critical for a disaster management application like forest fire detection and landslide early warning system. It becomes challenging especially when it is deployed in a remote location [1,2]. The size of the data has to be accounted when transmitted through a communication module, since the bandwidth of the module is fixed. Also, there can be data loss, when the CPU of the processor is allocated with several processing tasks on complex signal processing algorithms. This is because the microcontroller executes the code in the sequentially and ADC need to wait until the microcontroller reads the value from the output register of ADC. Since every data is very crucial in disaster management, we cannot afford to lose data. The selection of an embedded processor or a controller plays a significant role in designing an efficient system. Conventionally, general processors [3] are used in most of the applications due its low cost, ease of implementation, and availability. Some of the high-end processors has DMA features and can run at high speed.PSoC series is likewise an alternative that simplify large portion of novel preference which is further useful for researchers, designers, developers, and engineers to facilitate their works. It is designed in such a way that both hardware designing besides the product of software development is applicable. Some more com-