Development of control system in electromagnetic acquisition station based on ARM and Linux

Due to the operation environment in field exploration, low-power consumption and high reliability is a basic requirement for developing control system of electromagnetic acquisition stations. In this paper, we propose the design of the control system based on AT91RM9200 microprocessor and linux-2.6.21 operation system. The hardware design and the OS porting were introduced and the key points in device drivers of UART, SPI, I2C, DS1307 real time clock and serial synchronous controller (SSC) were depicted. Finally, the control system was tested by the acquisition station. Tests show that the control system's power consumption is low and its other specifications also meet requirements.