Webmov r5,#248; djnz r5,$ djnz r6,d2; djnz r7,d1; ret delay_2s: ;10ms(11.0592mhz) mov r3,#200 jmp delay10ms delay_100ms: ;100ms(11.0592mhz) mov r3,#10 jmp delay10ms 结论：论文针对初学者的困惑，对汇编程序的延时算法进行了分步讲解，并就几种不同写法分别总结出相应的计算公式，只要仔细阅读例1中 ...
单片机指令CJNE字母各代表什么意思 - 搜狗问问
WebSince the DJNZ loop test control is at the end of the loop, all the operations for the loop happen on the zeroth time when the loop exits as they do all the previous times. This would be different if the loop test control was at the top (or head) of the loop. Thus, Huisman's answer is correct. Counting from Part1, the loop ends after: Webdjnz r7, $ djnz r6, $ - 4 djnz r5, $ - 8 ret;-----setb p1.7 acall dfra baidu biblioteklay ajmp start delay:mov r7,#250 d1:mov r6,#250 d2:djnz r6,d2 djnz r7,d1 ret end 开发板上的8只led为共阳极连接，即单片机输出端为低电平时即可点亮led。 程序a：;用最直接的方式实现流水灯 ... mainzplus citymarketing gmbh mainz
锐龙R5和R7的差别？笔记本类专业解读 - 知乎 - 知乎专栏
WebOct 3, 2024 · 1. 点亮第一个led灯 org 0000h ljmp main main: clr p2.0 ljmp main end 2. led闪烁 org 0000h ljmp main delay: mov r5,#2 mov r6,#0 mov r7,#0 delayloop: nop;延时程序 djnz r7,delayloop djnz r6,delayloop djnz r5,delayloop ret main: clr p2.0 lcall delay setb p2.0 lcall delay ljmp main end WebMar 17, 2014 · C8051F560 DJNZ. When testing the C8051F560 with DJNZ in a timing loop I find that the DJNZ R5,$ gives a delay of 4 cycles (3 when R5 = 0), rather than the delay … Web单片机—DJNZ 指令练习. 1、 延时 假设fosc=12MHz，则一个机器周期为1us,若要求达到10ms延时。. 2、 闪烁灯 在P1.0端口上接一个发光二极管L1，使L1不停一亮一灭， … mainz river germany