topic WAKEUP0 pin intermittent in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/WAKEUP0-pin-intermittent/m-p/535110#M10948 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by jinfeei on Thu Dec 31 01:22:57 MST 2015</STRONG><BR /><SPAN>Hi, I'm using LPC1820. To wakeup the MCU, I'm using the WAKEUP0 pin. This PIN is also tied to another pin on the MCU configured as an INPUT.</SPAN><BR /><BR /><SPAN>However, I found the WAKEUP0 pin tend to pull this other (input) pin low intermittently. If I disconnect the WAKEUP0 pin, the other input pin is working properly.</SPAN><BR /><BR /><SPAN>The WAKEUP0 pin can function properly most of the time (to wake up the MCU from Deep Sleep). I don't know what else I need to configure the WAKEUP0 pin aside from bits 14/15 in the CREG0 register.</SPAN><BR /><BR /><SPAN>I seriously suspect there is a bug on the WAKEUP0 pin. Does anyone else have the same problem?</SPAN><BR /><BR /></BODY></HTML> Wed, 15 Jun 2016 18:20:54 GMT lpcware 2016-06-15T18:20:54Z WAKEUP0 pin intermittent https://community.nxp.com/t5/LPC-Microcontrollers/WAKEUP0-pin-intermittent/m-p/535110#M10948 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by jinfeei on Thu Dec 31 01:22:57 MST 2015</STRONG><BR /><SPAN>Hi, I'm using LPC1820. To wakeup the MCU, I'm using the WAKEUP0 pin. This PIN is also tied to another pin on the MCU configured as an INPUT.</SPAN><BR /><BR /><SPAN>However, I found the WAKEUP0 pin tend to pull this other (input) pin low intermittently. If I disconnect the WAKEUP0 pin, the other input pin is working properly.</SPAN><BR /><BR /><SPAN>The WAKEUP0 pin can function properly most of the time (to wake up the MCU from Deep Sleep). I don't know what else I need to configure the WAKEUP0 pin aside from bits 14/15 in the CREG0 register.</SPAN><BR /><BR /><SPAN>I seriously suspect there is a bug on the WAKEUP0 pin. Does anyone else have the same problem?</SPAN><BR /><BR /></BODY></HTML> Wed, 15 Jun 2016 18:20:54 GMT https://community.nxp.com/t5/LPC-Microcontrollers/WAKEUP0-pin-intermittent/m-p/535110#M10948 lpcware 2016-06-15T18:20:54Z