topic KBI interface with ke02 in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/KBI-interface-with-ke02/m-p/485675#M29809 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>I am working with kbi but not getting the isr working. I have ptd4 and ptd7 connected to two switches, the first one switches to vcc and the other one switch to ground(pull up resistors done). I have attached my code</P><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-337355">TEST_KBI.zip</A></STRONG></P></BODY></HTML> Thu, 28 Apr 2016 12:48:06 GMT surajka 2016-04-28T12:48:06Z KBI interface with ke02 https://community.nxp.com/t5/Kinetis-Microcontrollers/KBI-interface-with-ke02/m-p/485675#M29809 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>I am working with kbi but not getting the isr working. I have ptd4 and ptd7 connected to two switches, the first one switches to vcc and the other one switch to ground(pull up resistors done). I have attached my code</P><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-337355">TEST_KBI.zip</A></STRONG></P></BODY></HTML> Thu, 28 Apr 2016 12:48:06 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/KBI-interface-with-ke02/m-p/485675#M29809 surajka 2016-04-28T12:48:06Z Re: KBI interface with ke02 https://community.nxp.com/t5/Kinetis-Microcontrollers/KBI-interface-with-ke02/m-p/485676#M29810 <HTML><HEAD></HEAD><BODY><P>Hello, </P><P>That was the gate clocking issue. Now the issue is that I cannot enable interrupt on both pins. When Kbi1_PE is 0x90(both pin selected in pin enable) only the ptd4 pin triggers the input. Ptd7 does not. When kbi1_PE is 0x80(only ptd7 selected), ptd7 works fine. Ptd4 is the output of a logical device, ptd7 is mechanical switch pulled up.</P></BODY></HTML> Fri, 29 Apr 2016 11:42:11 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/KBI-interface-with-ke02/m-p/485676#M29810 surajka 2016-04-29T11:42:11Z Re: KBI interface with ke02 https://community.nxp.com/t5/Kinetis-Microcontrollers/KBI-interface-with-ke02/m-p/485677#M29811 <HTML><HEAD></HEAD><BODY><P>The kbi_es register was 0x00 earlier. I changed it to 0x14 and its working fine now. But I am not able to reverse the edge trigger polarity. Due to this, interrupt occurs two times back to back. May be keypad bouncing?</P></BODY></HTML> Fri, 29 Apr 2016 11:56:26 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/KBI-interface-with-ke02/m-p/485677#M29811 surajka 2016-04-29T11:56:26Z