tpu_init.c

mpc564 时钟中断 时钟中断

#include "mpc555.h"
#include "m_tpu3.h"

void init_TPU(void);

void init_TPU()
{
	/*	enable tpu clocks( stop = 0 ) 
		tcr1 divide by 1( tcr1p = 0b00 )
		tcr2 divide by 1( tcr2p = 0b00 )
		no emulation( emu = 0 )
		tcr2 pin used as gate of DIV8 clock for TCR2( t2cg = 1 )
		stop flag
		supervisor and user space( supv = 0 )
		tpu prescaler div 4( psck = 0 )
		tpu3 mode( tpu3 = 1 )
		gated imb clock( t2csl = 0 )
	*/
	TPU_A.TPUMCR.R = 0x0220 ;

	TPU_A.TICR.B.CIRL = 1 ; // Interrupt request level 1.
	TPU_A.TICR.B.ILBS = 0 ; // Interrupt levels 0 to 7 selected.

//	USIU.SIMASK.B.LVM1 = 1 ; // Enable level 1; others disabled
}


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