CPLD技术在图形发生器中的应用

FPGA(现场可编程阵列)和CPLD(复杂可编程逻辑器件)是可编程ASIC(专用集成电路)器件的主流。根据使用空间受到限制的航空、航天对地观察电视摄像系统特点,介绍了采用CPLD技术实现该系统变焦距数据的读取,并根据变焦距数据产生特定的图形符号,产生面阵CCD摄像机行、场同步信号及复合同步信号的原理及方法。实验表明采用CPLD设计方案,在降低系统功耗,缩短研发周期,提高系统可靠性方面取得了明显效果。

Application of complex programmable logic device technology in graphic generator

Field programmable gate array (FPGA) and complex programmable logic device (CPLD) are the mainstream of application specific integrated circuits (ASIC), and FPGA with million logic gate capacity has become a proven modern electronic research and development means. In the aerospace ground observation TV camera system with limited space available, CPLD design schemes are adopted to lower system power consumption, shorten R & D cycle and improve system reliability.