Standard infrared remote control receiver-songhan assembler source code

/*************************************** * ************ Name: the 4byte platform for the standard redfa remote control receiver is: the sn8p2511 mode is set to 100u *************************** **************************/; register definition sts1 DS 1f_irecok equ sts1. 0; receive a pair of Data t_irsta DS 1t_irnumposi DS 1; High level counter r_irdat1 DS 1; Receive Buffer r_irdat2 DS 1r_irdat3 DS 1r_irdat4 DS limit DS 1; the data received successfully; the constant defines vt_level0 equ 10; 1msvt_level1 equ 20; 2 ms; The following is the interruption receiving program -- 100u enters the interruption once; &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& &&&&&&&&&&&&&&&&&&&&&&&; first receive r_irdat4 and finally receive r_irdat1; r_irdat4 r_irdat3 r_irdat2 r_irdat1 respectively indicate the address code, the data code, and the data code bts0 f_irecok; when the data is not retrieved, the system does not receive the new data JMP l_irexit CLR t_irsta bts1 p_ir incms t_irsta bts1 t_irsta. 1 JMP resume:; the current value is 0 mov A, t_irnumposi 1_fz JMP l_irexit mov A, t_irnumposi sub A, # vt_level1; when the high level time is greater than data 1, the initial value fc jmp l_initirdat bts0. 0 bset f_irecok; receives a batch of Data mov A, t_irnumposi sub A, # vt_level0; when the High-Level time is greater than DATA 0, it is deemed that the received data is 1 rrcm r_irdat1 rrcm r_irdat2 rrcm r_irdat3 rrcm r_irdat4 CLR t_irnumposi JMP l_irexitl_initirdat:; after receiving the start code,, #0x80 mov r_irdat1, a clr r_irdat2 CLR r_irdat3 CLR r_irdat4; BCLR f_irecok JMP l_irexit; ------------------------------- l_irposi:; currently 1 incms t_irnumposi NOP l_irexit:; exit the receiver; &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& &&&&&&&&&&&&&&&&&&&&&&&&

Standard infrared remote control receiver-songhan assembler source code