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HD44780 LCD is only showing row of square blocks on 2nd line!

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Hey there,

I'm now doing some LCD experiments using the 16x2 LCD panel purchased in my local store.

I've put the code into the PIC18F45K20, and however, all I got is still the square blocks on the 2nd line.

Edit: [Solved] I realized that the LCD panel is a bit peculiar - I flipped it upside down! For casual note, the JHD-162A brand display sets have their connectors on top of the LCD panel, not below.
 
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