Weborg 0000h ljmp main org 0003h ljmp int0_isr org 000bh ljmp timer0_isr org 0013h ljmp int1_isr org 001bh ljmp timer1_isr ///// org 0033h db 0ffh,0ffh,0ffh,0ffh,0ffh,0ffh ///// org 0100h main: mov sp, #0c0h lcall system_initial main_loop: lcall display_routine lcall key_scan lcall function_control sjmp main_loop system_initial: clr px0 ;priority 0 ;setb px0 … Web17 Apr 2012 · set by CPU when external interrupt edge (H-to-L) is detected. Does not affected by H-to-L while ISR is executed(no int on int) Cleared by CPU when RETI …
8051-Microcontroller-Sample-Codes/Example 2.asm at master
WebMCS51单片机有5个中断源,2个中断优先级,中断优先级由特殊功能寄存器IP控制,在出现同级中断申请时,CPU按如下顺序响应各个中断源的请求:INT0、T0、INT1、T1、串口,各个中断源的入口地址分别是0003H、000BH、0013H、001BH、0023H。 2.已知单片机系统晶振频率为6MHz,若要求定时值为10ms时,定时器T0工作在方式1时,定时器T0对应的 … Webthe IT0 and IT1 bits (in the TCON register): ITx = 0 for low-level triggering; ITx = 1 for negative edge triggering. The interrupt flags: IE0 and IE1 (in the TCON register); Sampling … crypto poker club reddit
51单片机中断/定时器/计数器 - 简书
WebSetB ET0 ;(or SetB IE.1) to enable interrupts from T0 After this, whenever T0 overflows, TF0 will be set (in SFR TCON), the currently running program will be interrupted, its PC value … Web11 Jan 2024 · ①为边沿触发方式;②为电平触发方式: ③T0启动运行;④T1停止运行; 解:①SETB IT0 ②CLR IT1 ③ SETB TR0 ④ CLR TRl 11、用一条指令实现下列要求: ①、T0开中,其余禁中; ②T1、串行口开中,其余禁中; ③全部开中; ④全部禁中; ⑤、T0开中,其余保持不变; ⑥、T1禁中,其余保持不变; 解:①、T0开中,其余禁中: MOV … Websetb ea;enable all the ints: mov tmod, # 0x11;set t0 to 16bit mode: mov ie, # 0x81;enable ex0: mov r0, # 0x0;r0 will be shown on 7seg: setb it0;enable interrupt on falling edge: … cryptshare verificatie pagina