Data moving的单片机小程序与英文说明

ID:435608 · 发表于 2018-12-1 13:06

Instructions for the experiment on data moving

Experiment Objectives

The main objective of in-class lab 2 is to achieve data moving on the appropriate hardware and software development platform, with the specific objective as follow:

Be able to use the different addressing mode, including immediate, register, direct, indirect, register indexed etc., to accomplish the required tasks.

Main Experiment Apparatus

Software platform:

This experiment could be implemented by using simulation software Keil μvision and burning software PZISP which are stored in the optical accompanied withmicrocontroller development toolkit.

Hardware platform:

PRECHIN microcontroller development toolkit as shown below, including the main board (HC6800EM3-V3.0) and other accessories:

Seven-segment display (SSD)

The SSD used in the experimental toolkit adopts common anode configuration with the circuit shown below.

Experiment Tasks and Requirements

Each student should complete the following task independently in class:

Write a program to display your own student matriculation number on the seven-segment display (SSD) sequentially.

Reference steps:

Connect the SSD (JP3) with port 0 (P0) with wires as shown in the following figure

Create a project in Keil uvision IDE
Add the assembly code “DataMoving.asm” into the project
Write the program in the section shown in the following figure

Store your student matriculation number in RAM address starting from 40H using immediate addressing mode.
Copy each digit of the matriculation number stored in RAM using register indirect addressing mode to register A.
Fetch the corresponding hexadecimal encoding stored in ROM using register indexed addressing mode and store it in register A.
Copy the fetched hexadecimal encoding to port 0 (P0).
After copying a number to P0, add an instruction “AJMP DELAY” below to pause for a moment so that we can check the result on SSD clearly.

Grading

Performance in-class (70%);
Lab report (30 %);

单片机源程序如下:

ORG 0000H ;程序从此地址开始运行
LJMP MAIN ;跳转到 MAIN 程序处
ORG 030H ;MAIN 从030H处开始
MAIN:
;*************Add your code below*************************************
MOV 40H,#02H
MOV 41H,#00H
MOV 42H,#01H
MOV 43H,#06H
MOV 44H,#01H
MOV 45H,#04H
MOV 46H,#01H
MOV 47H,#04H
MOV 48H,#01H
MOV 49H,#01H
MOV 4AH,#02H
MOV 4BH,#02H
MOV 4CH,#02H ;在40H-4CH里面存入2016141411222学号
MOV DPTR,#TAB
MOV R0,#40H ;R0=40H
MOV A,@R0 ;A=02H
MOVC A,@A+DPTR ;A=0A4H
MOV P0,A ;2
INC R0 ;R0=41H
LCALL DELAY ;延时
MOV A,@R0 ;A=00H
MOVC A,@A+DPTR ;A=0C0H
MOV P0,A ;0
INC R0 ;R0=42H
LCALL DELAY
MOV A,@R0 ;A=01H
MOVC A,@A+DPTR ;A=0F9H
MOV P0,A ;1
INC R0 ;R0=43H
LCALL DELAY
MOV A,@R0 ;A=06H
MOVC A,@A+DPTR ;A=82H
MOV P0,A ;6
INC R0 ;R0=44H
LCALL DELAY
MOV A,@R0 ;A=01H
MOVC A,@A+DPTR ;A=0F9H
MOV P0,A ;1
INC R0 ;R0=45H
LCALL DELAY
MOV A,@R0 ;A=04H
MOVC A,@A+DPTR ;A=99H
MOV P0,A ;4
INC R0 ;R0=46H
LCALL DELAY
MOV A,@R0 ;A=01H
MOVC A,@A+DPTR ;A=0F9H
MOV P0,A ;1
INC R0 ;R0=47H
LCALL DELAY
MOV A,@R0 ;A=04H
MOVC A,@A+DPTR ;A=99H
MOV P0,A ;4
INC R0 ;R0=48H
LCALL DELAY
MOV A,@R0 ;A=01H
MOVC A,@A+DPTR ;A=0F9H
MOV P0,A ;1
INC R0 ;R0=49H
LCALL DELAY
MOV A,@R0 ;A=01H
MOVC A,@A+DPTR ;A=0F9H
MOV P0,A ;1
INC R0 ;R0=4AH
LCALL DELAY
MOV A,@R0 ;A=02H
MOVC A,@A+DPTR ;A=0A4H
MOV P0,A ;2
INC R0 ;R0=4BH
LCALL DELAY
MOV A,@R0 ;A=02H
MOVC A,@A+DPTR ;A=0A4H
MOV P0,A ;2
INC R0 ;R0=4CH
LCALL DELAY
MOV A,@R0 ;A=02H
MOVC A,@A+DPTR ;A=0A4H
MOV P0,A ;2
LCALL DELAY
;*********************************************************************
AJMP MAIN ;跳转到主程序处
DELAY:
MOV R5,#04H ;将立即数传给寄存器R5
F3:
MOV R6,#0FFH
F2:
MOV R7,#0FFH
F1:
DJNZ R7,F1 ;若为0程序向下执行，若不为0程序跳转到
DJNZ R6,F2
DJNZ R5,F3
RET
;七段数码显管显示数字编码(对应0~F)
;TAB: DB 3Fh,06h,5Bh,4Fh,66h,6Dh,7Dh,07h,7Fh,6Fh,77h,7Ch,39h,5Eh,79h,71h ;共阴极七段数码显管
TAB: DB 0C0h,0F9h,0A4h,0B0h,99h,92h,82h,0F8h,80h,90h,88h,83h,0C6h,0A1h,86h,8Eh ;共阳极七段数码显管
END

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Data moving的单片机小程序与英文说明

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