tc1out.asm

来自「范例程序 SONiX」· 汇编 代码 · 共 87 行

chip	sn8p2758

.data

.code

	org	00h
	jmp	main
	

	org	10h

//============================================================================
//	timer TC1 --> tc1out(buzzer)
//============================================================================
//Setup TC1OUT output from TC0 to TC1OUT (P5.4). The external high-speed clock is 4MHz. The
//TC1OUT frequency is 0.5KHz. Because the TC0OUT signal is divided by 2, set the TC1 clock to 1KHz. The
//TC1 clock source is from external oscillator clock. TC1 rate is Fcpu/4. The TC1RATE2~TC1RATE1 = 110.
//TC1C = TC1R = 131.
main:

	b0bclr	ftc1enb
						
	mov	a,#60h		// Fcpu/4		
	b0mov	tc1m,a				
											
	mov	a,#131					
	b0mov	tc1c,a	
	b0mov	tc1r,a	
	
	b0bset	ftc1out		// Enable tc1out function
	b0bset	faload1		// enable auto reload		
					
	b0bset	ftc1enb		// Enable T0 timer

main10:
//==================================================================
//	
//	User code 
//
//==================================================================
									
	jmp	main10