Based on the in-depth research of the embedded device management system,analyze the process of the driver parameters delivery on kernel level particularly.According to this,expound the device driver 's working pri...Based on the in-depth research of the embedded device management system,analyze the process of the driver parameters delivery on kernel level particularly.According to this,expound the device driver 's working principle,structure and design methods especially.Finally realize the drivers of the character-based devices which can be dynamically loaded.Actual result shows that mastering the realization of the device driver mechanism and the process of parameters delivery with kernel can improve the embedded device driver development efficiency and reduce error probability effectively,thus saving the development cost and development cycle of embedded products.展开更多
A network communication and recording system based on China-made ARCA SOC and embedded Linux operating system is introduced in this paper. It supports TCP/IP network communication protocol and mass storage medium. It ...A network communication and recording system based on China-made ARCA SOC and embedded Linux operating system is introduced in this paper. It supports TCP/IP network communication protocol and mass storage medium. It has strong points of self-monitor, low power consumption, high timing accuracy, high reliability of operation, etc. It can serve up to 20 centers real-time waveform data at the same time. It meets not only the requirements of physical networking observation, but also virtual networking observation based on Internet in which real-time data transmission is required. Its ability of field recording also meets the requirements of portable seismic observation, strong motion observation and seismic exploration observation, etc.展开更多
Purpose Generally,the front-end computer(FEC)in a digital quench detector always acts as a communication platform between front-end data acquisition system and upper monitoring computer.SoC FPGA is the optimal option ...Purpose Generally,the front-end computer(FEC)in a digital quench detector always acts as a communication platform between front-end data acquisition system and upper monitoring computer.SoC FPGA is the optimal option for building system on chip.Aiming at developing a digital quench detector with higher integration degree,lower cost and stronger portability that meets the needs of different kinds of superconducting magnets,it is essential to develop a universal FEC based on SoC FPGA.Methods The development platform is Cyclone V SX SoC FPGA development board which has a FPGA integrated with an ARM processor.The hardware architecture of the FEC is built by using IP cores and developing custom function modules.On the other hand,the software design mainly consists of transplanting the embedded Linux and developing essential application program for communicating functions.Results The main function of FEC is reading quench detection data and transferring it to upper monitor computer through Ethernet;the test results indicate that the system design is reasonable and the function is complete.Conclusions The implementing of FEC on SoC FPGA has set a proper platform for upgrading to support more function for digital quench detection,and it is feasible to integrate more discrete devices onto one piece of SoC FPGA.展开更多
文摘Based on the in-depth research of the embedded device management system,analyze the process of the driver parameters delivery on kernel level particularly.According to this,expound the device driver 's working principle,structure and design methods especially.Finally realize the drivers of the character-based devices which can be dynamically loaded.Actual result shows that mastering the realization of the device driver mechanism and the process of parameters delivery with kernel can improve the embedded device driver development efficiency and reduce error probability effectively,thus saving the development cost and development cycle of embedded products.
文摘A network communication and recording system based on China-made ARCA SOC and embedded Linux operating system is introduced in this paper. It supports TCP/IP network communication protocol and mass storage medium. It has strong points of self-monitor, low power consumption, high timing accuracy, high reliability of operation, etc. It can serve up to 20 centers real-time waveform data at the same time. It meets not only the requirements of physical networking observation, but also virtual networking observation based on Internet in which real-time data transmission is required. Its ability of field recording also meets the requirements of portable seismic observation, strong motion observation and seismic exploration observation, etc.
文摘Purpose Generally,the front-end computer(FEC)in a digital quench detector always acts as a communication platform between front-end data acquisition system and upper monitoring computer.SoC FPGA is the optimal option for building system on chip.Aiming at developing a digital quench detector with higher integration degree,lower cost and stronger portability that meets the needs of different kinds of superconducting magnets,it is essential to develop a universal FEC based on SoC FPGA.Methods The development platform is Cyclone V SX SoC FPGA development board which has a FPGA integrated with an ARM processor.The hardware architecture of the FEC is built by using IP cores and developing custom function modules.On the other hand,the software design mainly consists of transplanting the embedded Linux and developing essential application program for communicating functions.Results The main function of FEC is reading quench detection data and transferring it to upper monitor computer through Ethernet;the test results indicate that the system design is reasonable and the function is complete.Conclusions The implementing of FEC on SoC FPGA has set a proper platform for upgrading to support more function for digital quench detection,and it is feasible to integrate more discrete devices onto one piece of SoC FPGA.
