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03-05 SevenSegDisplay

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This example demonstrates the BusOut function to display digits on a 7-segment display with a common cathode. It displays digits 0, 1, 2, 3 in turn.
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This example demonstrates the BusOut function to display digits on a 7-segment display with a common cathode. It displays digits 0, 1, 2, 3 in turn.  
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Please see schematic below for further details.
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The signals used for this example are listed below:
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{| border="1" cellpadding="5" cellspacing="2" align="center" style="text-align: center;"
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|+ align="bottom"|'''Signals Used and Connector Locations for Example 03-05'''
 +
|'''Signal'''
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|'''LPC4330 PIN NAME'''
 +
|'''BAM210E'''
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|'''BAM210'''
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|'''BAM200E'''
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|'''BAM200'''
 +
|'''Used for'''
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|-
 +
|D0
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|P6_5
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|J9-1
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|J9-1
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|S2-5
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|S2-5
 +
|Segment A
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|-
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|D1
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|P6_4
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|J9-2
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|J9-2
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|S2-4
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|S2-4
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|Segment B
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|-
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|D2
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|P1_7
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|J9-3
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|J9-3
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|S3-7
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|S3-7
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|Segment C
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|-
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|D3
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|P4_0
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|J9-3
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|J9-3
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|S3-7
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|S3-7
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|Segment D
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|-
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|D4
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|P6_9
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|J9-4
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|J9-4
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|S8-7
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|n/p
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|Segment E
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|-
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|D5
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|P5_5
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|J9-5
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|J9-5
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|S3-8
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|S3-8
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|Segment F
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|-
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|D6
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|P5_7
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|J9-6
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|J9-6
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|S3-9
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|S3-9
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|Segment G
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|-
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|D7
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|P7_6
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|J9-7
 +
|J9-7
 +
|S4-6
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|S4-6
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|Segment DP
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|-
 +
|}
 +
 
 +
The following schematic can be used to build the circuit with a BAM210E or BAM210.
[[Image:BAM210_03_05_SCH.png|center|alt=BAM210|frame|<div align="center">'''Schematic for example 03-05''']]
[[Image:BAM210_03_05_SCH.png|center|alt=BAM210|frame|<div align="center">'''Schematic for example 03-05''']]

Current revision as of 17:54, 17 September 2014

This example demonstrates the BusOut function to display digits on a 7-segment display with a common cathode. It displays digits 0, 1, 2, 3 in turn.

The signals used for this example are listed below:

Signals Used and Connector Locations for Example 03-05
Signal LPC4330 PIN NAME BAM210E BAM210 BAM200E BAM200 Used for
D0 P6_5 J9-1 J9-1 S2-5 S2-5 Segment A
D1 P6_4 J9-2 J9-2 S2-4 S2-4 Segment B
D2 P1_7 J9-3 J9-3 S3-7 S3-7 Segment C
D3 P4_0 J9-3 J9-3 S3-7 S3-7 Segment D
D4 P6_9 J9-4 J9-4 S8-7 n/p Segment E
D5 P5_5 J9-5 J9-5 S3-8 S3-8 Segment F
D6 P5_7 J9-6 J9-6 S3-9 S3-9 Segment G
D7 P7_6 J9-7 J9-7 S4-6 S4-6 Segment DP

The following schematic can be used to build the circuit with a BAM210E or BAM210.

BAM210
Schematic for example 03-05
/*Program Example 3.5: Simple demonstration of 7-segment display. Display digits 0, 1, 2, 3 in turn.
                                                                       */
#include "mbed.h"
BusOut display(D0,D1,D2,D3,D4,D5,D6,D7);   // segments a,b,c,d,e,f,g,dp

int main()
{
    while(1) {
        for(int i=0; i<4; i++) {
            switch (i) {
                case 0:
                    display = 0x3F;
                    break;       //display 0
                case 1:
                    display = 0x06;
                    break;       //display 1
                case 2:
                    display = 0x5B;
                    break;
                case 3:
                    display = 0x4F;
                    break;
            }                                      //end of switch
            wait(0.2);
        }                                        //end of for
    }                                          //end of while
}

The following image shows the built circuit on a BAM210E.

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