8051 Program – sawtooth wave

; sawtooth wave generation
; standard 8051
; 8-bt DAC interfaced on P1
	ORG 0H
	PORT EQU P1
	STEPS EQU 255
MAIN:
	LCALL SAWTOOTHWAVE
	SJMP MAIN
SAWTOOTHWAVE:
	MOV PORT,#00H
	MOV R0, #STEPS
	MOV A, #00H
cycle:	MOV PORT,A
	INC A
	DJNZ R0, cycle
	RET
	END

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List of topics: 8051

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