Hi all,
Im trying to drive the CFAG128128B using AVR but all I'm seeing is flickering. Its the CFAG128128B-TMI-VZ lcd and even without powering the AVR board (Arduino mega 2560 coded in GCC C) the result is a bunch of white lines running in a blue background. You can see this in the video, http://www.youtube.com/watch?v=Z4q9AMRk0q8
I'm happy to upload a link to the code but not sure how useful that would be.
In terms of connections I have mapped the following LCD->AVR pins,
The third leg of the 10k pot is connected to 5V. And unless mentioned the logic levels of the control signals RS, R/W and E are controlled appropriately.
Can anyone shed some light as to why all I'm getting is flickering ? Hopefully it isnt anything to do with my connections.
Im trying to drive the CFAG128128B using AVR but all I'm seeing is flickering. Its the CFAG128128B-TMI-VZ lcd and even without powering the AVR board (Arduino mega 2560 coded in GCC C) the result is a bunch of white lines running in a blue background. You can see this in the video, http://www.youtube.com/watch?v=Z4q9AMRk0q8
I'm happy to upload a link to the code but not sure how useful that would be.
In terms of connections I have mapped the following LCD->AVR pins,
Pins 1-8 | PORT A |
RS | PIN C0 |
R/W | PIN C1 |
E | PIN C2 |
CS | PIN C4 (Set to low during initialisation) |
RESET | PIN C5 (Set to high during initialisation) |
Vo | One end of 10k pot |
VDD | 5V |
Vss | GND |
VEE | Other end of 10k pot |
LED+ | One end of 18.8Ohm resistor |
LED- | The other end of 18.8Ohm resistor |
The third leg of the 10k pot is connected to 5V. And unless mentioned the logic levels of the control signals RS, R/W and E are controlled appropriately.
Can anyone shed some light as to why all I'm getting is flickering ? Hopefully it isnt anything to do with my connections.
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