Solution: ①

MOV DX，0FF63H

MOV aluminum, 0000000 1B

Output DX, AL

Moval, 0000 10 10B

Output DX, AL

②

MOV El, 100 10000B

Out of 63H, aluminum

Test: In aluminum, 60 hours.

Not Al.

OUT 6 1H，AL

JMP test _ IT

Six,

There are two main ways to connect the output of 1. Interface between A/D converter and microcomputer: one is that the output of A/D chip is directly connected to the system bus; The other is that the output of the A/D chip is connected to the bus through the interface circuit. The following figure shows that the output of the A/D chip is directly connected to the system bus.

2. Solution: Assuming that the DELAY program can call the delay, the time is enough to ensure the end of an A/D conversion. Solution: Assuming that the DELAY program can call delay, the time is enough to ensure the end of an A/D conversion.

data field

BUF0 DB 1(？ )

ed

code segment

Suppose CS: code, DS: data.

Start: MOV axe, data

MOV DS，AX

MOV CX， 1； Set collection time

MOV SI，0000H

AA: MOV BX, offset, BUF0

MOV DX，0260H

OUT DX，AL； Start with channel 0.

Call delay

In AL, dx; Read the IN0 channel conversion result.

MOV [BX+SI]，AL； Save results

Company SI

Cyclic aa; The collection time does not conform to the cycle.

MOV, 4CH

INT 2 1H

End of code

End start