Hello, I'm trying to create a simple DMX controller (sender), As I dont know very much about DMX I used Kathy Quinlan's DMX receiver as base to my DMX Sender, looks simple, and also I tested this sender with Kathy's receiver and works well, but I'm not shure if it will work with another receivers (fixtures, moving lights). I was trying to learn more about DMX and looks like the break need to be bigger than 88 microseconds, and this codes dont appears to make this. As I dont have how to test the project with real DMX receivers so often I asking for help.
This can work with normal DMX receivers?
How can I make a break > 88 microseconds?

Thanks.

$mod51					;ASM DIRECTIVE FOR USE 8051 COMMAND SET

;*************************  DATA EQU AND DEF STATEMENTS ************************

CNT1     EQU    7FH		;WE HAVE A BREAK PULSE
IADDRESS EQU    7DH		;BASE ADDRESS OF UNIT


;**************************  START OF MAIN PROGRAMM *****************************

ORG 002BH			;START OF MAIN ROUTINE
START:
        SJMP SETUP		;SETUP CPU FOR SERIAL,ONLY AT START-UP
RUN:	

        CLR TB8
        MOV SBUF,#0		;BREAK
        JNB TI,$
        CLR TI
        
        SETB TB8
        MOV SBUF,#0		;SC
        JNB TI,$
        CLR TI

        MOV CNT1,#100           ;Sends some bytes
BYTESLOOP:
        SETB TB8
        MOV SBUF,#0
        JNB TI,$
        CLR TI
        
        DJNZ CNT1, BYTESLOOP
        
        
        SJMP RUN
		
				

		



;**************************  SETUP ROUTINE  ************************************



SETUP:
	MOV R0,#7FH		;THIS + NEXT 3 LINES CLEAR ALL DATA 
	CLR A			;LOCATIONS
CLEAR_LOOP:
	MOV @R0,A
	DJNZ R0,CLEAR_LOOP

        MOV CNT1,#00H		;RESET DMX STATUS REG
	MOV PCON,#00H		;SETS BAUD RATE TO 250Kb (16 Mhz XTAL)
	MOV SCON,#98H		;SETS UP THE SERIAL PORT (MODE 2)
	MOV IADDRESS,P0		;LOADS UNIT BASE ADDRESS FROM DIPS
	;MOV IE,#90H		;ENABLE RECIEVE INTERUPT
	SJMP RUN		;RETURN TO MAIN PROGRAM



END				;ASM DIRECTIVE FOR END OF FILE