D2IO - LCD
description
Transcript of D2IO - LCD
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D2IO - LCD
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5x8
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5x8
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5x8
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KS0066 Samsung controller
•204 5x8 Characters
•32 5x11 Characters
•8 8x5 User Defined Characters
•80 Character Code RAM
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DDRAM
0x00 ….
….
0x27
0x40 0x67
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Initialization
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Initialization Parameters
Page 4 of D2IO manual
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Characters
• 0x00 through 0x7F are standard ASCII characters
• Higher values map to extended characters
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How to Instantiate
• UCF File– NET "lcd_rw_n" LOC = "P34" ;– NET "lcd_rs" LOC = "P33" ;– NET "lcd_e" LOC = "P36" ;– NET "lcd_data<7>" LOC = "P46" ;– NET "lcd_data<6>" LOC = "P47" ;– NET "lcd_data<5>" LOC = "P44" ;– NET "lcd_data<4>" LOC = "P45" ;– NET "lcd_data<3>" LOC = "P42" ;– NET "lcd_data<2>" LOC = "P43" ;– NET "lcd_data<1>" LOC = "P37" ;– NET "lcd_data<0>" LOC = "P31" ;
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After initialization
• Perform command or instruction
• Read busy flag
• Wait for busy flag to go low