bf533_ez-kit_isr.asm

测试BLACKFIN芯片的PPI视频输入功能

/******************************************************************************/
//
// Name: 	BF533 EZ-KIT video ITU-656 receive mode 
//
/******************************************************************************

(C) Copyright 2003 - Analog Devices, Inc.  All rights reserved.

File Name:		BF533_EZ-KIT_ISR.asm

Date Modified:	10/25/04		TL		Rev 2

Software:       VisualDSP++3.1

Hardware:		ADSP-BF533 EZ-KIT Board

Special Connections:  None

Purpose:		All interrupt service routines are located here 
				
				
Program Parameters:

********************************************************************************/


#include <defBF533.h>

.global		PPI_DMA_ISR;



.section L1_code;
/*******************************************************************************/


//Stop DMA Interrupt		
PPI_DMA_ISR:

	//disable the interrupt request
	p0.h = hi(DMA0_NEXT_DESC_PTR);
	p0.l = lo(DMA0_NEXT_DESC_PTR);
	r0 = 0x1(z);
	w[p0+DMA0_IRQ_STATUS-DMA0_NEXT_DESC_PTR] = r0;
	
	ssync;
	
	
PPI_DMA_ISR.END:
RTI;
/*******************************************************************************/