isr.c

来自「visual dsp++ audio iir」· C语言 代码 · 共 26 行

#include "Talkthrough.h"

//--------------------------------------------------------------------------//
// Function:	Sport0_RX_ISR												//
//																			//
// Description: This ISR is executed after a complete frame of input data 	//
//				has been received. The new samples are stored in 			//
//				iChannel0LeftIn, iChannel0RightIn, iChannel1LeftIn and 		//
//				iChannel1RightIn respectively.  Then the function 			//
//				Process_Data() is called in which user code can be executed.//
//				After that the processed values are copied from the 		//
//				variables iChannel0LeftOut, iChannel0RightOut, 				//
//				iChannel1LeftOut and iChannel1RightOut into the dma 		//
//				transmit buffer.											//
//--------------------------------------------------------------------------//
EX_INTERRUPT_HANDLER(Sport0_RX_ISR)
{
	// confirm interrupt handling
	*pDMA1_IRQ_STATUS = 0x0001;

	// copy input data from dma input buffer into variables
	Process_Data();				
}