基于GPS接收模块的电子钟设计，系统以msp430g2553为主控芯片，利用compass芯片sc-1513接收卫星星历数据并从中提取日期、时间，通过NRF24L01无线收发装置转发至手持式电子钟，使电子钟与标准的UTC时间同步。-Electronic clock design, system based on GPS receiver module with msp430g2553 as main control chip, using the compass chip sc- 1513 re