Assembly 加上一句「;延迟“;PIC16F684上LED时钟的部分?
好的,我已经写了一个.asm来操作3个LED,但是我很久以前就做过了,并且对命令/结构非常生疏。我甚至不知道这个脚本到底是做什么的 据我所知,它以二进制形式从0-7计数(3个LED=0-7?) 我的问题是:如何在LED开启之间增加~1秒的延迟,使其作为基本的视觉二进制时钟工作 非常感谢Assembly 加上一句「;延迟“;PIC16F684上LED时钟的部分?,assembly,pic,Assembly,Pic,好的,我已经写了一个.asm来操作3个LED,但是我很久以前就做过了,并且对命令/结构非常生疏。我甚至不知道这个脚本到底是做什么的 据我所知,它以二进制形式从0-7计数(3个LED=0-7?) 我的问题是:如何在LED开启之间增加~1秒的延迟,使其作为基本的视觉二进制时钟工作 非常感谢 ; WRITTEN BY JL ; DATE 28/03/05 ; FILE SAVED AS SAMPLE6.ASM ; DEVICE
; WRITTEN BY JL
; DATE 28/03/05
; FILE SAVED AS SAMPLE6.ASM
; DEVICE PIC16F684
; OSCILLATOR XT (4MHZ)
; WATCHDOG DISABLED
; FUNCTION LEDs are switched ON in a binary sequence
list p=16f684 ; list directive to define processor
#include <p16f684.inc> ; processor specific variable definitions
__CONFIG _CP_OFF & _WDT_OFF &_PWRTE_ON & _INTRC_OSC_NOCLKOUT & _MCLRE_OFF & _CPD_OFF
;*******************************Equates****************************************
PORTA EQU 05h
COUNT1 EQU 20h; Set up two counters to count down a delay
COUNT2 EQU 21h
;*******************************Defines****************************************
; define input/output designation for LEDs (what TRISA will equal)
#define TRIS_D0_D1 B'00001111' ; TRISIO setting for D0 and D1
#define TRIS_D2_D3 B'00101011' ; TRISIO setting for D2 and D3
#define TRIS_D4_D5 B'00011011' ; TRISIO setting for D4 and D5
; define LED state (what PORTA will equal)
#define D0_ON B'00010000' ; D0 LED
#define D1_ON B'00100000' ; D1 LED
#define D2_ON B'00010000' ; D2 LED
;****************************** Start of Program ******************************
org 0x000 ; processor reset vector
;************* Initialize PortA **********
movlw B'00111111' ; Set all I/O pins of PORTA as inputs
TRIS PORTA
clrf PORTA ; clear all outputs
;************** LED0 ON *********************
START movlw TRIS_D0_D1 ; move predefined value to TRISA to switch ON LED0
TRIS PORTA
movlw D0_ON ; move predefined value to PORTA TO switch ON LED0
movwf PORTA
decfsz COUNT1,1 ;Subtract 1 from 00h (this gives 255 or FFh)
goto START ;If COUNT is zero, carry on.
decfsz COUNT2,1 ;Subtract 1 from 00h
goto START ;Go back to the start of our loop
;************** LED1 ON *********************
LOOP2 movlw D1_ON ; move predefined value to PORTA TO switch ON LED1
movwf PORTA
decfsz COUNT1,1 ;Subtract 1 from 00h (this gives 255 or FFh)
goto LOOP2 ;If COUNT is zero, carry on.
decfsz COUNT2,1 ;Subtract 1 from 00h
goto LOOP2 ;Go back to the start of our loop
;************** LED0 and LED1 ON **************
LOOP3 movlw D0_ON ; move predefined value to PORTA TO switch ON LED0
movwf PORTA
movlw D1_ON ; move predefined value to PORTA TO switch ON LED1
movwf PORTA
decfsz COUNT1,1 ;Subtract 1 from 00h (this gives 255 or FFh)
goto LOOP3 ;If COUNT is zero, carry on.
decfsz COUNT2,1 ;Subtract 1 from 00h
goto LOOP3 ;Go back to the start of our loop
;************** LED2 ON *********************
LOOP4 movlw TRIS_D2_D3 ; move predefined value to TRISA to switch ON LED2
TRIS PORTA
movlw D2_ON ; move predefined value to PORTA TO switch ON LED2
movwf PORTA
decfsz COUNT1,1 ;Subtract 1 from 00h (this gives 255 or FFh)
goto LOOP4 ;If COUNT is zero, carry on.
decfsz COUNT2,1 ;Subtract 1 from 00h
goto LOOP4 ;Go back to the start of our loop
;************** LED0 and LED2 ON **************
LOOP5 movlw TRIS_D0_D1 ; move predefined value to TRISA to switch ON LED0
TRIS PORTA
movlw D0_ON ; move predefined value to PORTA TO switch ON LED0
movwf PORTA
movlw TRIS_D2_D3 ; move predefined value to TRISA to switch ON LED2
TRIS PORTA
movlw D2_ON ; move predefined value to PORTA TO switch ON LED2
movwf PORTA
decfsz COUNT1,1 ;Subtract 1 from 00h (this gives 255 or FFh)
goto LOOP5 ;If COUNT is zero, carry on.
decfsz COUNT2,1 ;Subtract 1 from 00h
goto LOOP5 ;Go back to the start of our loop
;************** LED1 and LED2 ON **************
LOOP6 clrf PORTA ; clear all outputs
movlw TRIS_D0_D1 ; move predefined value to TRISA to switch ON LED1
TRIS PORTA
movlw D1_ON ; move predefined value to PORTA TO switch ON LED1
movwf PORTA
movlw TRIS_D2_D3 ; move predefined value to TRISA to switch ON LED2
TRIS PORTA
movlw D2_ON ; move predefined value to PORTA TO switch ON LED2
movwf PORTA
decfsz COUNT1,1 ;Subtract 1 from 00h (this gives 255 or FFh)
goto LOOP6 ;If COUNT is zero, carry on.
decfsz COUNT2,1 ;Subtract 1 from 00h
goto LOOP6 ;Go back to the start of our loop
;************** LED0,LED1 and LED2 ON **************
LOOP7 movlw TRIS_D0_D1 ; move predefined value to TRISA to switch ON LED0 and LED1
TRIS PORTA
movlw D0_ON ; move predefined value to PORTA TO switch ON LED0
movwf PORTA
movlw D1_ON ; move predefined value to PORTA TO switch ON LED1
movwf PORTA
movlw TRIS_D2_D3 ; move predefined value to TRISA to switch ON LED2
TRIS PORTA
movlw D2_ON ; move predefined value to PORTA TO switch ON LED2
movwf PORTA
decfsz COUNT1,1 ;Subtract 1 from 00h (this gives 255 or FFh)
goto LOOP7 ;If COUNT is zero, carry on.
decfsz COUNT2,1 ;Subtract 1 from 00h
goto LOOP7 ;Go back to the start of our loop
;**********End of program *****************
goto START ; indefinite loop
END ; End instruction is needed by some compilers and also useful in case we miss goto instruction
;*********************************************************************************
;作者:JL
; 日期:2005年3月28日
; 文件另存为SAMPLE6.ASM
; 设备PIC16F684
; 振荡器XT(4MHZ)
; 看门狗残疾
; 功能LED以二进制顺序打开
列表p=16f684;用于定义处理器的list指令
#包括,;处理器特定变量定义
__配置CP关闭和WDT关闭和PWRTE打开和INTRC关闭和MCLRE关闭和CPD关闭
;*******************************等同于****************************************
门EQU 05h
计数1等于20小时;设置两个计数器以倒计时延迟
COUNT2 EQU 21h
;*******************************定义****************************************
; 定义LED的输入/输出名称(TRISA将等于什么)
#定义TRIS_D0_D1 B'00001111';D0和D1的TRISIO设置
#定义TRIS_D2_D3 B'00101011';D2和D3的TRISIO设置
#定义TRIS_D4_D5 B'0001011';D4和D5的TRISIO设置
; 定义LED状态(PORTA将等于什么)
#在B'00010000'上定义D0_;D0发光二极管
#在B'00100000'上定义D1_;首被告领先
#在B'00010000'上定义D2_;D2发光二极管
;****************************** 节目开始******************************
组织0x000;处理器复位向量
;************* 初始化端口**********
movlw B'00111111';将PORTA的所有I/O引脚设置为输入
三门
clrf门;清除所有输出
;************** 莱德*********************
启动movlw TRIS_D0_D1;将预定义值移动到TRISA以打开LED0
三门
移动D0_ON;将预定义值移动到PORTA以打开LED0
movwf门
decfsz计数1,1;从00h中减去1(即255或FFh)
转到开始;如果计数为零,则继续。
decfsz计数2,1;从00h中减去1
转到开始;回到循环的开始
;************** LED1接通*********************
回路2移动D1_ON;将预定义值移动到PORTA以打开LED1
movwf门
decfsz计数1,1;从00h中减去1(即255或FFh)
转到LOOP2;如果计数为零,则继续。
decfsz计数2,1;从00h中减去1
转到LOOP2;回到循环的开始
;************** LED0和LED1接通**************
LOOP3 movlw D0_ON;将预定义值移动到PORTA以打开LED0
movwf门
移动D1_ON;将预定义值移动到PORTA以打开LED1
movwf门
decfsz计数1,1;从00h中减去1(即255或FFh)
转到LOOP3;如果计数为零,则继续。
decfsz计数2,1;从00h中减去1
转到LOOP3;回到循环的开始
;************** ************************上的LED2
LOOP4 movlw TRIS_D2_D3;将预定义值移动到TRISA以打开LED2
三门
移动D2_ON;将预定义值移动到PORTA以打开LED2
movwf门
decfsz计数1,1;从00h中减去1(即255或FFh)
转到LOOP4;如果计数为零,则继续。
decfsz计数2,1;从00h中减去1
转到LOOP4;回到循环的开始
;************** LED0和LED2接通**************
回路5移动LW TRIS_D0_D1;将预定义值移动到TRISA以打开LED0
三门
移动D0_ON;将预定义值移动到PORTA以打开LED0
movwf门
movlw TRIS_D2_D3;将预定义值移动到TRISA以打开LED2
三门
移动D2_ON;将预定义值移动到PORTA以打开LED2
movwf门
decfsz计数1,1;从00h中减去1(即255或FFh)
转到环路5;如果计数为零,则继续。
decfsz计数2,1;从00h中减去1
转到环路5;回到循环的开始
;************** LED1和LED2接通**************
LOOP6 clrf端口;清除所有输出
movlw TRIS_D0_D1;将预定义值移动到TRISA以打开LED1
三门
移动D1_ON;将预定义值移动到PORTA以打开LED1
movwf门
movlw TRIS_D2_D3;将预定义值移动到TRISA以打开LED2
三门
移动D2_ON;将预定义值移动到PORTA以打开LED2
movwf门
decfsz计数1,1;从00h中减去1(即255或FFh)
转到LOOP6;如果计数为零,则继续。
decfsz计数2,1;从00h中减去1
转到LOOP6;回到循环的开始
;************** LED0、LED1和LED2接通**************
回路7移动LW TRIS_D0_D1;将预定义值移动到TRISA以打开LED0和LED1
三门
移动D0_ON;将预定义值移动到PORTA以打开LED0
movwf门
movlw D1_