Difference between revisions of "Interfacing Seven Segment Display with Starter AVR"
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[[category:Starter AVR]] | [[category:Starter AVR]] | ||
| − | + | Now we will go further and will interface more complex peripherals. In this tutorial we will interface common anode 7 segment display to the starter AVR board. To get idea about basics of 7 segment display check out our [[Interfacing Seven segment Display with AVR]] tutorail. | |
=Basic= | =Basic= | ||
=Hookup= | =Hookup= | ||
Revision as of 17:29, 5 April 2016
Now we will go further and will interface more complex peripherals. In this tutorial we will interface common anode 7 segment display to the starter AVR board. To get idea about basics of 7 segment display check out our Interfacing Seven segment Display with AVR tutorail.
Basic
Hookup
Code
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| #include <avr/io.h> | |
| #include <util/delay.h> | |
| #define Segment 0x01 | |
| int main() { | |
| char seg_code[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e}; | |
| int cnt; | |
| /* Configure the ports as output */ | |
| DDRB = 0xff; // Data lines | |
| DDRD = 0x01; // Control signal PORTD0 | |
| while (1) | |
| { | |
| for (cnt = 0x00; cnt < 0x10; cnt++) // loop to display 0-F | |
| { | |
| PORTD = Segment; | |
| PORTB = seg_code[cnt]; | |
| _delay_ms(300); | |
| } | |
| } | |
| } |
Demo
