LPC MicrocontrollersのトピックLPC43xx GPIO Group Interrupt https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-GPIO-Group-Interrupt/m-p/566227#M17261 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by an.kh. on Fri Apr 12 02:25:48 MST 2013</STRONG><BR /><P>Hello! I need to receive pin change interrupts from many pins. 8 GPIO pin interrupts are not enough.</P><BR /><P>How the GPIO group interrupt works? I have tested it anf found the following: active levels for enabled pins goes to AND or OR element, then directly to interrupt or by using edge detector. Is this correct? For example: 2 pins are configured to low level, group interrupt to OR+EDGE. First pin goes low - interrupt rises. Then second pin goes low (with 1st low also) - interrupt will not rise because OR chema already gives 1 and there is no edge.</P><BR /><P>Is there any way to implement pin change interrupts in LPC43xx like it were in LPC13xx or LPC17xx?</P></BODY></HTML> Wed, 15 Jun 2016 18:51:32 GMT lpcware 2016-06-15T18:51:32Z LPC43xx GPIO Group Interrupt https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-GPIO-Group-Interrupt/m-p/566227#M17261 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by an.kh. on Fri Apr 12 02:25:48 MST 2013</STRONG><BR /><P>Hello! I need to receive pin change interrupts from many pins. 8 GPIO pin interrupts are not enough.</P><BR /><P>How the GPIO group interrupt works? I have tested it anf found the following: active levels for enabled pins goes to AND or OR element, then directly to interrupt or by using edge detector. Is this correct? For example: 2 pins are configured to low level, group interrupt to OR+EDGE. First pin goes low - interrupt rises. Then second pin goes low (with 1st low also) - interrupt will not rise because OR chema already gives 1 and there is no edge.</P><BR /><P>Is there any way to implement pin change interrupts in LPC43xx like it were in LPC13xx or LPC17xx?</P></BODY></HTML> Wed, 15 Jun 2016 18:51:32 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-GPIO-Group-Interrupt/m-p/566227#M17261 lpcware 2016-06-15T18:51:32Z