In order to extend the use range of the system equipment in the future , we introduced the tms320vc5402 dsp 1c ( integrated circuit chip ) produced by ti corporation and pld ( programmable logic device ) produced by altera corporation . it is very convinent to upgrade the system because these integrated circuit chips adopted in it can be programmed on them 为了将来的扩展,本系统中采用了ti公司的tms320vc5402dsp芯片和altera公司的大规模可编程逻辑器件epf10k50e芯片作为整个系统的核心器件,由于二者都是可编程的,这就为将来的升级提供了便利的条件。
In the designed hardware , at89c51 single chip computer and many kinds of new type circuit chip ( including : special power measuring chip - cs5460a , ds1302 calendar / clock chip , sms0601 lcd , x5045 serial memory ) are used for design . the hardware circuit is simplified , the meter ' s anti - interference ability is enhanced and the precision of measurement is also advanced 设计中以at89c51单片机为核心,采用多种新型集成电路芯片(包括电能计量专用芯片cs5460a 、 ds1302日历时钟芯片、 sms0601液晶显示器、 x5045串行存储器)进行接口设计,简化了硬件电路,提高了电能表的抗干扰能力和测量精度。