hello guys, i have this code at the end of the post, which control 8 devices over bluetooth. im trying to figure out what command that i can send over hyperterminal to activate a port or a pin. to my understanding if i want to set pin1.0 i should send 'A'>0AH>31H is that correct?
any kind of help is really appreciated. here's a portion of the code
LOAD1 EQU P1.0 LOAD2 EQU P1.1 LOAD3 EQU P1.2 LOAD4 EQU P1.3 LOAD5 EQU P1.4 LOAD6 EQU P1.5 LOAD7 EQU P1.6 LOAD8 EQU P1.7 DSEG ; This is internal data memory ORG 20H ; Bit adressable memory MOBILE: DS 3 COUNTER: DS 1 CSEG ; Code begins here ; ---------==========----------==========---------=========--------- ; Main routine. Program execution starts here. ; ---------==========----------==========---------=========--------- ORG 00H ; Reset AJMP MAIN ORG 0023H AJMP SERIAL ; ---------==========----------==========---------=========--------- MAIN: MOV SP,#40H MOV TMOD,#20H ;initilize serial port MOV TH1,#0FDH ;Slect 9600 baud rate MOV SCON,#50H MOV A,PCON SETB ACC.7 MOV PCON,A MOV IE,#10010000B SETB TR1 ;start timer MOV COUNTER,#00H MOV P1,#00H AJMP $ ;************************************************************************** SERIAL: JB TI,TRAS1 MOV A,SBUF CJNE A,#'A',DOWNW MOV COUNTER,#00H AJMP DOWN1 TRAS1: AJMP TRAS DOWNW:CJNE A,#0AH,DOWNW1 CALL DEVICE_DECODE AJMP DOWN1 DOWNW1:MOV A,COUNTER CJNE A,#01H,SD1 MOV MOBILE,SBUF AJMP DOWN1 SD1: CJNE A,#02H,DOWN1 MOV MOBILE+1,SBUF DOWN1:INC COUNTER CLR RI RETI TRAS: CLR TI RETI ;************************************************************************** DEVICE_DECODE: MOV A,MOBILE ;LOAD 1 CJNE A,#31H,SDF1 MOV A,MOBILE+1 CJNE A,#31H,SDF2 SETB LOAD1 AJMP SDF1 SDF2: CJNE A,#32H,SDF1 CLR LOAD1 SDF1: