interrupt_service.c

来自「Blackfin 处理器使用GPIO模拟NAND控制器读写nandflash的源」· C语言 代码 · 共 35 行

#include "main.h"

/********************************************************************************/
/***** Defines the interrupt service routines for CoreA						*****/
/********************************************************************************/


EX_INTERRUPT_HANDLER(PPI0_RxIsr) {

	*pDMA1_0_IRQ_STATUS |= DMA_DONE;		// acknowledge interrupt

	if (current_in_Frame < 0)		// this was the first Frame received now signal core B to start Video Out

	//++current_in_Frame;
	//if(current_in_Frame>0)
	
	*pPPI0_CONTROL &= 0xfffe;
	ssync();
	*pDMA1_0_CONFIG &= 0xfffe;
	ssync();
	p=1;
	//while (current_in_Frame =4)
	//p=1;

	current_in_Frame = (current_in_Frame) % 4;

}



EX_EXCEPTION_HANDLER(ex_handler_coreA) {
	while(1);
}