Real-time recognition of two-dimensional barcode based on ARM and DMA

Two-dimensional barcode symbology is an emerging technology used for compactly storing and retrieving information. Accompanied with the development of the technology of 2D-barcode and speech coding, the dream of storing the speech on the paper has come true. Since the data capacity of speech 2D-barcode is large and must be decoded with the least delay, a high-performance, low-cost device is extremely needed in the decoding system. ARM (advanced RISC machines) microcontroller is widely used in many fields due to its characteristics of high-performance, small volume, low power dissipation and low-cost exactly. This paper proposes a novel implementation of real-time 2D-barcode recognition using ARM and DMA, which is an important technology used for high speed data transfer