Design of electronic settlement terminal based on ARM processor and CAN bus
Su Rui · Modern Electronics Technique · 2012
In order to meet the needs of the transaction management,financial settlement and collection of market fees in electronic settlement system,and improve the efficiency of transactions,this paper presents a new digital transaction terminal which uses the ARM7 processor LPC2292 as the core and takes the SJAI000 and PCA82C251 as the interface between CAN protocol controller and the physical bus.At the same time,it transplants the real-time embedded operating system μC / OS-II to manage the different tasks module,which improves real-time performance and reliability of the system.The actual test and operation show that the system has good practicability,and can be used in many electronic settlement field.