1)设计ADC0809与8086CPU的硬件连接图，分配ADC0809的基地址为0FF00H。

2)设计制作一个数字电压表，测量0~5V，结果显示于数码管上。-1) design ADC0809 8086CPU hardware connection diagram, the base address for the allocation ADC0809 0FF00H. 2) design a digital voltmeter, measure the 0 to 5V, the results displayed in the digital tube.