config_timer.asm

来自「LCD output example code for BF5」· 汇编 代码 · 共 69 行

/*****************************************************************************
**																			**
**	 Project Name: 	LCD Colorbar									**	
**																			**
******************************************************************************

Analog Devices, Inc.  All rights reserved.

File Name:	config_timer.asm

Hardware:       ADSP-BF537

Special Connections:  None

Purpose:	Config timers for HSYNC and VSYNC timing parameters required by 
			LCD.
	
				
******************************************************************************/


#include "defBF537.h"

.global _config_timer;

.section program;

_config_timer:
	
	P0.L = lo(TIMER0_CONFIG);
	P0.H = hi(TIMER0_CONFIG);
	R0 = 0x02A9(z);	
	W[P0] = R0;
	SSYNC;
	
	P1.L = lo(TIMER0_WIDTH);
	P1.H = hi(TIMER0_WIDTH);
	R1 = 96(z);
	[P1] = R1;
	SSYNC;
	
	P2.L = lo(TIMER0_PERIOD);
	P2.H = hi(TIMER0_PERIOD);
	R2 = 800(z);
	[P2] = R2;
	SSYNC;
	
	P3.L = lo(TIMER1_CONFIG);
	P3.H = hi(TIMER1_CONFIG);
	R3 = 0x02A9(z);	
	W[P3] = R3;
	SSYNC;
	
	P4.L = lo(TIMER1_WIDTH);
	P4.H = hi(TIMER1_WIDTH);
	R4 = 1600(z);
	[P4] = R4;
	SSYNC;
	
	// 420000
	P5.L = lo(TIMER1_PERIOD);
	P5.H = hi(TIMER1_PERIOD);
	R5.H = 0x0006;
	R5.L = 0x68A0;
	[P5] = R5;
	SSYNC;
	
_config_timer.END:	RTS;