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Kreg
Joined: 27 Aug 2014
Posts: 2
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| Rotate LED |
 Posted: Wed Aug 27, 2014 2:55 am |
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Hi all !
I would like to ask a question.
Actually, I have just bought a PICKIT3 with a 18F45K20
I would like to 'flash and rotate' LED.
Can you help me ? I am a beginner.
All my LEDs are connected to the port D (there is 7 LED)
I would like to introduce an array of the form
const int LED_LookupTable[8]={0,1,2,3,4,5,6,7};
Then, sending the led_data in sequence to portD will light each each LED in turn.
Here is my code but it doesn't work :
| Code: | /** I N C L U D E S **************************************************/
#include <18F45K20.h>
#FUSES INTRC_IO,NOWDT,NOLVP
#USE delay (CLOCK=1MHz)
#WORD LATD=0xF8C
#WORD PORTD=0xF83
#BIT led=LATD.0
#BIT led1=LATD.1
#BIT led2=LATD.2
#BIT led3=LATD.3
#BIT led4=LATD.4
#BIT led5=LATD.5
#BIT led6=LATD.6
#BIT led7=LATD.7
const int LED_LookupTable[8]={0,1,2,3,4,5,6,7};
void main(){
int LED_Number=0;
SET_TRIS_D(0b00000000);
led7.LED_LookupTable[LED_Number];
led7=1;
LED_Number++;
if(LED_Number==8){
LED_Number=0;
}
delay_ms(2000);
} |
And the error about led7=1;
| Quote: | | Expecting a structure/union |
How can I fix that ?
Thanks |
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Kreg
Joined: 27 Aug 2014
Posts: 2
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| Posted: Wed Aug 27, 2014 3:06 am |
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| Code: | /** I N C L U D E S **************************************************/
#include <18F45K20.h>
#FUSES INTRC_IO,NOWDT,NOLVP
#USE delay (CLOCK=1MHz)
#WORD LATD=0xF8C
#WORD PORTD=0xF83
#BIT led=LATD.0
#BIT led1=LATD.1
#BIT led2=LATD.2
#BIT led3=LATD.3
#BIT led4=LATD.4
#BIT led5=LATD.5
#BIT led6=LATD.6
#BIT led7=LATD.7
const int LED_LookupTable[8]={0,1,2,3,4,5,6,7};
void main(){
LATD=0;
int LED_Number=0;
SET_TRIS_D(0b00000000);
int i=0;
while(1){
for(i=0;i<8;i++){
bit_set(LATD,i);
delay_ms(1000);
}
i=0;
LATD=0;
}
} |
This code works but I don't use the array unfortunately |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed Aug 27, 2014 1:33 pm |
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This code lights up LEDs on PortB, bits 0 to 3. They are turned on
sequentially. Once turned on, the Leds stay on. This program
shows how to read from an array. I used PortB because that's the
way my hardware board is setup.
| Code: |
#include <18F452.h>
#fuses XT, BROWNOUT, PUT, NOWDT, NOLVP
#use delay(clock=4M)
#use rs232(baud=9600, UART1, ERRORS)
int LED_LookupTable[8]={0,1,2,3,4,5,6,7};
#byte PORTB = getenv("SFR:PORTB")
//===================================
void main()
{
int i;
output_b(0x00); // All Leds off initially, and PortB TRIS = all outputs
for(i = 0; i < 4; i++)
{
bit_set(PORTB, LED_LookupTable[i]);
delay_ms(500);
}
while(1);
} |
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