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为何ADE7758中断脚IRQ始终为低电平？


		

			

									
						Yamei
					
							

			
				
									
											
			          
                                                            
			
				
			
		


				
		

			

  

   
    

     

      

        我使用ADE7758与PIC16F877,将7758的IRQ与877的INT直接相连。初始化后测IRQ始终是低电平，即使读取了复位状态寄存器后（RSTATUS)依然是低电平。然后在初始化中我将中断屏蔽寄存器（MASK)全写如入0，即屏蔽所有中断输出，按理说IRQ应为高电平了，但它依然是低电平，请那位高手予以解答谢谢！ 
      

    

   
  

 

								


				
				
		

			
						
									
									
						
						
			
			
			
			
		


					

			





	

		
	











	

	

					



			








	
	
	
	



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