摘要
利用现在广泛使用的8位单片机C8051F020,通过通用输入输出端口(GPIO)进行数据传输和逻辑控制,实现16位数据总线的通信。针对ARINC429总线专用接口控制器HS3282扩展操作方式下逻辑控制关系复杂、操作繁琐的特点,提出一种在单片机C8051F020控制下无锁存、无编译码器的直接控制和数据传输方式。通过对该系统测试表明:操作时序符合总线要求,与其扩展方式下操作时序一致,满足系统使用要求。
The widely-used 8-bit microcontroUer C8051F020 is used to implement data transmission and logic control by General Purpose Input/Output ports （GPIO） in order to realize the communication of 16-bit data bus. Aiming at the characteristics of complex logic control relations and operation at the extended operation mode of ARINC429 bus special interface controller HS3282, this paper proposes direct control and data transmission mode without latch and codec under the control of C8051F020. The test results show that the operation time sequence accords with the bus requirements, is same as that under its extension mode and meets the operational requirements of system.
出处
《计算机与网络》
2012年第23期59-61,共3页
Computer & Network
