Thota Suresh Avionics
Member level 2
LCD not working with External Oscillator
Hi,
I am using hd44780 4x20 LCD to display some data.. I am using PC30f5011 controller and external oscillator configured as XT Oscillator with PLL4X...
its not showing any data only Back light is switching On.
External Oscillator tested its working fine....
Same code Configured as Internal Fast RC with PLL 16x LCD working fine.
where i am missing plz let me know??
I am using data pins from 49 -57 (RD0-RD7) you can refer from below attachment.
External Oscillator -8Mhz
Internal Oscillator -7.37Mhz
Hi,
I am using hd44780 4x20 LCD to display some data.. I am using PC30f5011 controller and external oscillator configured as XT Oscillator with PLL4X...
its not showing any data only Back light is switching On.
External Oscillator tested its working fine....
Same code Configured as Internal Fast RC with PLL 16x LCD working fine.
where i am missing plz let me know??
I am using data pins from 49 -57 (RD0-RD7) you can refer from below attachment.
External Oscillator -8Mhz
Internal Oscillator -7.37Mhz
Last edited: