topic Lcd's Green4 can not be used with internal Rtc in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Lcd-s-Green4-can-not-be-used-with-internal-Rtc/m-p/562990#M16587 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by askar on Thu Feb 05 06:00:58 MST 2015</STRONG><BR /><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have been faced with a strange matter that need some help,</SPAN><BR /><SPAN>i am using a system that uses Lpc4357 with 208 pin LQFP package,</SPAN><BR /><SPAN>the processor pin number 181 is used as PB_5 and set to LCDVD14</SPAN><BR /><SPAN>that is used as bit4 for Green color&nbsp; in LCD defined as RGB 5:6:5.</SPAN><BR /><SPAN>the pin number 182 is RTCX1 crystal signal used for internal Rtc.</SPAN><BR /><SPAN>When i use the bit4 of Green color as described above, Rtc goes forward or backward for</SPAN><BR /><SPAN>example, 50 minutes every day, when I use PB_5 as a normal Gpio, then</SPAN><BR /><SPAN>the Rtc operates accurately.</SPAN><BR /><SPAN>Any Help is appreciated.</SPAN><BR /><BR /><SPAN>Best Regards,</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:48:55 GMT lpcware 2016-06-15T18:48:55Z Lcd's Green4 can not be used with internal Rtc https://community.nxp.com/t5/LPC-Microcontrollers/Lcd-s-Green4-can-not-be-used-with-internal-Rtc/m-p/562990#M16587 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by askar on Thu Feb 05 06:00:58 MST 2015</STRONG><BR /><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have been faced with a strange matter that need some help,</SPAN><BR /><SPAN>i am using a system that uses Lpc4357 with 208 pin LQFP package,</SPAN><BR /><SPAN>the processor pin number 181 is used as PB_5 and set to LCDVD14</SPAN><BR /><SPAN>that is used as bit4 for Green color&nbsp; in LCD defined as RGB 5:6:5.</SPAN><BR /><SPAN>the pin number 182 is RTCX1 crystal signal used for internal Rtc.</SPAN><BR /><SPAN>When i use the bit4 of Green color as described above, Rtc goes forward or backward for</SPAN><BR /><SPAN>example, 50 minutes every day, when I use PB_5 as a normal Gpio, then</SPAN><BR /><SPAN>the Rtc operates accurately.</SPAN><BR /><SPAN>Any Help is appreciated.</SPAN><BR /><BR /><SPAN>Best Regards,</SPAN></BODY></HTML> Wed, 15 Jun 2016 18:48:55 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Lcd-s-Green4-can-not-be-used-with-internal-Rtc/m-p/562990#M16587 lpcware 2016-06-15T18:48:55Z