如何使用mplab实现pic16f887芯片的流水灯实验求帮助

ID:502115 · 发表于 2019-4-1 02:03

如何使用mplab实现pic16f887芯片的流水灯实验！
要求从上到下逐个点亮，从下岛上逐个熄灭，上下逐个往中间点亮，从中间往外围熄灭

ID:499770 · 发表于 2019-4-1 09:11

比如8位的，高电平是点亮，你用一个字节，把每次变化的对应位置1，再间隔传到端口，就能实现了

ID:18297 · 发表于 2019-4-1 09:32

#include"sys.h"
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
uint8_t disp_buff=0;
#define LED_OUTPUT PORTD
uint8_t i=0;
uint8_t disp_tabA[8]={0b0000000,0b10000001,0b11000011,0b11100111,0b11111111};
void main()
{
TRISD=0;
LED_OUTPUT=0;
while(1)
{
for(i=0;i<8;i++)
{
disp_buff=(uint8_t)((disp_buff<<1)+1); //右移加1 实现逐个点亮
LED_OUTPUT=disp_buff;
__delay_ms(500);
}
for(i=0;i<8;i++)
{
disp_buff=(uint8_t)(disp_buff>>1); //左移，实现逐个灭灯
LED_OUTPUT=disp_buff;
__delay_ms(500);
}
for(i=0;i<5;i++)
{
LED_OUTPUT=disp_tabA[i]; //由disp_tabA[0]---disp_tabA[5]依次旁边向中间点亮
__delay_ms(500);
}
for(i=0;i<5;i++)
{
LED_OUTPUT=disp_tabA[(uint8_t)(4-i)]; //由disp_tabA[5]---disp_tabA[0]依次旁边向中间到两边逐渐灭灯
__delay_ms(500);
}
}
}

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// PIC16F887 Configuration Bit Settings
// 'C' source line config statements
// CONFIG1
#pragma config FOSC = INTRC_NOCLKOUT// Oscillator Selection bits (INTOSCIO oscillator: I/O function on RA6/OSC2/CLKOUT pin, I/O function on RA7/OSC1/CLKIN)
#pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT disabled and can be enabled by SWDTEN bit of the WDTCON register)
#pragma config PWRTE = OFF // Power-up Timer Enable bit (PWRT disabled)
#pragma config MCLRE = OFF // RE3/MCLR pin function select bit (RE3/MCLR pin function is digital input, MCLR internally tied to VDD)
#pragma config CP = OFF // Code Protection bit (Program memory code protection is disabled)
#pragma config CPD = OFF // Data Code Protection bit (Data memory code protection is disabled)
#pragma config BOREN = ON // Brown Out Reset Selection bits (BOR enabled)
#pragma config IESO = OFF // Internal External Switchover bit (Internal/External Switchover mode is disabled)
#pragma config FCMEN = OFF // Fail-Safe Clock Monitor Enabled bit (Fail-Safe Clock Monitor is disabled)
#pragma config LVP = ON // Low Voltage Programming Enable bit (RB3/PGM pin has PGM function, low voltage programming enabled)
// CONFIG2
#pragma config BOR4V = BOR40V // Brown-out Reset Selection bit (Brown-out Reset set to 4.0V)
#pragma config WRT = OFF // Flash Program Memory Self Write Enable bits (Write protection off)
// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.
#include <xc.h>
#define _XTAL_FREQ 16000000

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如何使用mplab实现pic16f887芯片的流水灯实验 求帮助

如何使用mplab实现pic16f887芯片的流水灯实验求帮助