MCU 8051 IDE
(Rozdíly mezi verzemi)
(→Runing Light) |
(→Write to Port) |
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| Řádka 33: | Řádka 33: | ||
[[Soubor:RD2kit_08.jpg|400px]] | [[Soubor:RD2kit_08.jpg|400px]] | ||
| + | {| | ||
| + | |- | ||
| + | | | ||
<source lang="asm"> | <source lang="asm"> | ||
| − | |||
start: | start: | ||
| − | + | mov A,#01010101b | |
mov P3,A | mov P3,A | ||
acall delay | acall delay | ||
| Řádka 47: | Řádka 49: | ||
sjmp start | sjmp start | ||
| − | delay: mov R0,#01h | + | delay: mov R0,#01h ; 108 ms |
| − | skok1: mov R1,# | + | skok1: mov R1,#100 |
| − | skok2: mov R2,# | + | skok2: mov R2,#250 |
| − | skok: DJNZ R2,skok | + | skok: DJNZ R2,skok |
| − | DJNZ R1,skok2 | + | DJNZ R1,skok2 |
| − | DJNZ R0,skok1 | + | DJNZ R0,skok1 |
ret | ret | ||
end | end | ||
</source> | </source> | ||
| + | | | ||
| + | <source lang="c"> | ||
| + | #include <at89x51.h> | ||
| + | void _delay_ms(unsigned int msec) //for 11.0592Mhz crystal | ||
| + | |||
| + | { | ||
| + | unsigned int i,j; | ||
| + | for(i=0;i<msec;i++) | ||
| + | { | ||
| + | for(j=0;j<110;j++); | ||
| + | } | ||
| + | } | ||
| + | |||
| + | void main () | ||
| + | { | ||
| + | while(1) | ||
| + | { | ||
| + | P3 = 0x55; | ||
| + | _delay_ms(100); // 100 ms | ||
| + | P3 = 0xAA; | ||
| + | _delay_ms(100); | ||
| + | } | ||
| + | } | ||
| + | </source> | ||
| + | |- | ||
| + | |} | ||
=== Read from Ports === | === Read from Ports === | ||
Verze z 5. 5. 2013, 09:08
 MCU 8051 IDE 
| |
| popis: | Vývoj aplikace pro 8051 v asm nebo C |
| vývojář | Martin Ošmera |
| aktuální verze | 1.4 (2011) |
| OS | Unix-like, Microsoft Windows, freeBSD |
| typ softwaru | aplikační |
| licence | GNU General Public License |
| web | mcu8051ide.sf.net wiki |
Obsah |
Instalace programu
Založení nového projektu
Simulace programu
Example
Write to Port
start: mov A,#01010101b mov P3,A acall delay mov A,#10101010b mov P3,A acall delay sjmp start delay: mov R0,#01h ; 108 ms skok1: mov R1,#100 skok2: mov R2,#250 skok: DJNZ R2,skok DJNZ R1,skok2 DJNZ R0,skok1 ret end |
#include <at89x51.h> void _delay_ms(unsigned int msec) //for 11.0592Mhz crystal { unsigned int i,j; for(i=0;i<msec;i++) { for(j=0;j<110;j++); } } void main () { while(1) { P3 = 0x55; _delay_ms(100); // 100 ms P3 = 0xAA; _delay_ms(100); } } |
Read from Ports
org 0 ;pseudoinstrukce umistujici program do pameti programu pocitace adresou 000h start: mov A,#P1 mov P3,A sjmp start
Runing Light
org 0 ;pseudoinstrukce umistujici program od 00h mov P3,#11111110B ;0. bit na log "0" loop: mov A,P3 rlc A ;posun obsah A přes C doleva mov P3,A acall delay ;zavolá podprogram pro zpoždění 1s sjmp loop ;skočí zpět k rotaci P1 delay: mov R0,#01h ;podprogram zpoždění skok1: mov R1,#01h skok2: mov R2,#01h skok: djnz R2,skok djnz R1,skok2 djnz R0,skok1 ret end
Runing Light C
#include <at89x51.h> #define LED P2_3 void main() { int i; while(1) { if (LED) { LED = 0; } else { LED = 1; } { for(i=0;i<10000;i++); } } }
7 segment
MOV DPTR,#TAB ;ulozi adresu cislic do DPTR nastav: MOV R5,#0 ;nastaveni prvni cislice zobraz: MOV A,R5 ;presun cislice z R5 do A MOVC A,@A+DPTR ;vybere prislusnou hodnotu pro A MOV P3,A ;presum hodnoty na port INC R5 ;zvysi cislo v R5 o 1 CJNE R5,#10,zobraz SJMP nastav TAB: DB 0C0h,0F9H,0A4H,0B0H,99H ;0,1,2,3,4, DB 92H,82H,0F8H,80H,90H ;5,6,7,8,9, end
7 segment v2
mov R6,#10 START: djnz R6,NEXT mov R6,#10 mov R5,#0 NEXT: mov DPTR,#TAB mov A,R5 movc A,@A+DPTR mov P3,A inc R5 sjmp START TAB: DB 0C0H,0F9H,0A4H,0B0H,99H ;0,1,2,3,4, DB 92H,82H,0F8H,80H,90H ;5,6,7,8,9, end
7 segment - C
__sfr __at (0xB0) P3; #define DELAYTIME 15 //Defined delay time constant, originally 65000 unsigned int temp1; void delay(unsigned int temp)//Delay process { while(--temp); } void main() { P3=255; //led is off HGFEDCBA = "1" while(1) { P3=0Xc0; //0 HG = "1" OFF temp1=DELAYTIME; delay(temp1); P3=0XF9; //1 BC = "0" = ON temp1=DELAYTIME; delay(temp1); } }
7 segment - C (tab)
#include <at89x51.h> __code unsigned char out[16] = {0xC0,0xF9,0xA4,0xB0, //0,1,2,3 0x99,0x92,0x82,0xF8, //4,5,6,7 0x80,0x90,0x08,0x03, //8.9.A.B 0x46,0x21,0x06,0x0E};//C,D,E,F void main(void) { __data unsigned char i = 0; while (1) // program loop { P3 = out[i++]; if (i==16) i=0; } }
Counter
MOV TMOD,#00000001B MOV TH0,#00H MOV TL0,#00H SETB TR0 MOV DPTR,#TAB ;ulozi adresu cislic do DPTR nastav: MOV R5,#0 ;nastaveni prvni cislice zobraz: MOV A,R5 ;presun cislice z R5 do A MOVC A,@A+DPTR ;vybere prislusnou hodnotu pro A MOV P3,A ;presum hodnoty na port INC R5 ;zvysi cislo v R5 o 1 acall test CJNE R5,#10,zobraz SJMP nastav test: ; ACALL ZPOZD JNB P1.0,$ ;bit P1.0=0 skok na sebe sama ; ACALL ZPOZD JB P1.0,$ ;bit P1.0=1 skok na sebe sama ret ZPOZD: MOV R0,#05H SKOK: JNB TF0,$ CLR TF0 DJNZ R0,SKOK RET TAB: DB 0C0h,0F9H,0A4H,0B0H,99H ;0,1,2,3,4, DB 92H,82H,0F8H,80H,90H ;5,6,7,8,9, end
