Freescale Semiconductor DRM079 manual Kbisc, BUZZER, Ptad, #6, Mtimmod, #24, Mtimmod

		Temperature Sensor Measurement
NoReading:	#$00, SensorReading	; Smallest Number
mov
clr	ACMPSC	; disable ACMP
mov	#(mMTIMSC_TSTPmMTIMSC_TRST), MTIMSC ; mask interrupt and clear flag
mov	#(MTIM_BUS_CLKMTIM_DIV_256), MTIMCLK; Reset Timer resolution
rts

;%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

;6-bit Table Lookup ;%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% TableLookup:

bset SRTISC_RTIACK, MAP_ADDR_6(SRTISC);5

mov	#HIGH_6_13(TableStart), PAGESEL;5 Calculate the PAGE
lda	SensorReading	;3
add	#$c0	;2 Reference to paging window
tax	,x	;2
lda		;3
sta	TargetPeriod	;2
mov	#HIGH_6_13(SOPT), PAGESEL	;5
rts		;3

;%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

;Error Handling

;Stop the motor

;Sound the buzzer (about 520Hz) ;%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% MotorHang:

clr	PTAD	; clear	PWMp and PWMn
lda	MotorRunning	; Check	software flag
bne	SoundBuzzer	; =1, Motor is running
jmp	ResetPosition
SoundBuzzer:	#(mMTIMSC_TSTPmMTIMSC_TRST), MTIMSC; mask interrupt and clear flag
mov
clr	KBISC	; mask KBI
lda	#255	; Bump COP
sta	MAP_ADDR_6(SRS)
Beep:	BUZZER, PTAD	; a 20%	duty cycle loop
bset		; Drive	buzzer
mov	#6, MTIMMOD		Reset and Start Timer
mov	#(mMTIMSC_TRSTmMTIMSC_TOIE), MTIMSC;
wait	#(mMTIMSC_TSTPmMTIMSC_TRST), MTIMSC;		mask interrupt and clear flag
mov
sta	MAP_ADDR_6(SRS)	; Bump COP
bclr	BUZZER, PTAD	; Clear	buzzer
mov	#24, MTIMMOD		Reset and Start Timer
mov	#(mMTIMSC_TRSTmMTIMSC_TOIE), MTIMSC;
wait	#(mMTIMSC_TSTPmMTIMSC_TRST), MTIMSC;		mask interrupt and clear flag
mov
sta	MAP_ADDR_6(SRS)		; Bump COP
dbnza	Beep
	Variable Speed DC Fan Control using the MC9RS08KA2, Rev. 0
Freescale Semiconductor			31