The sampling data are displayed by 7 - segment leds that are designed in a dependent pcb , the display board has a serial interface which use less pins of mcu . it ' s a efficient way . at last the outputs by calculation and reference of fis control the capacitor - group and voltage adjuster by relay - group , the whole device is divided into three part , the first part is sampling & control board ; the second part is display leds board and the third part is supply & output board 在电压无功综合控制器的设计中,考虑到mcu管脚有限且要求显示的数据较多,使用了较多的spi接口形式的外围芯片(如cs5460a 、 ezprom ) ,而且将数码管显示部分设计为串行数据传输模式,这样其数据线也可以利spi接口的数据线复用,提高了mcu管脚的利用率也保证了功能的实现。
串行: serial; tandem数据传输: data transmission同步串行数据传输: synchronous serial data transfer; transfer synchronous serial data; transfer, synchronous serial data串行数据传送: serial data transfer并行数据传输: parallel data transmission平行数据传输: parallel data transmission串行数据: serial data串行数据集: serial data set串行数据流: serial data stream串行数据线: sda串行数据采集: serial data acquisition串行数据方式: serial data mode串行数据交换: serial data exchange; serial data handshaking串行数据链路: serial data link串行数据输出: serial data out (sdo); serial data output串行数据输入: serial data in (sdi); serial data input串行数据形式: serial data form位串行数据流: bit serial data stream异步串行数据: asynchronous serial data光数据传输: optical data transmission流数据传输: stream data transmission数据传输: data transmission◇数据传输发送机 data transmitter; 数据传输率 data transmission rate; data-signalling rate; 数据传输系统 data transmission system; 数据传输装置 data transmission device数据传输机: data set; data-set数据传输率: data rate; data tra mi ion rate; data-signal rate; data-signaling rate; data-signalling rate; dtr data transmission rate; transfer rate数据传输器: data down link; data link; data tra mi ion unit; data transmission unit; data-link