lpcware

LCD & RTC interference

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by Atieh on Thu Dec 25 09:50:53 MST 2014
I designed a LPC4357 based 4 layer board. A 32KHZ crystal is connected to RTCX1 and RTCX2 pins with 10pF capacitors.
The board layers are : top(signal) - mid1(power) - internal plane(GND) - bottom(signal).
Internal RTC was working fine till LCD initialise was added to code. Due to LCD, RTC has lag or works fast. How can I eliminate this problem?

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