Hello I have very little experience and or instructions on how to program this however here is what I have. I am using a pic 18f1320 microcontroller and 2 H-bridges to drive a Mercury Stepper Motor (SM-42BYG011-25) in order for it to rotate one way with the one of the LED's lit on the microcontroller, stop and light a different LED, and then reverse its direction (clockwise to counterclock wise or v.v.) and keep it in a loop. If someone could help me through this that'd be amazing, ill probably be sticking around this forum now that I'm getting into electrical engineering.
The datasheet for the pic18f1320 is below:
PIC18F1220/1320 Data Sheet 18/20/28-Pin High ... - Microchip
I know its suppose to be in 4 parts with the Coil Energization Sequence as follows
(I believe this is the correctly matched pins:
RA0=B3
RA1=B2
RA2=A7
RA3=A6
Coil Energization Sequence
RA0: H-H-L-L-L
RA1: L-L-H-H-L
RA2: H-L-L-H-L
RA3: L-H-H-L-L
with H being high output and L being low and the last L for RA0,1,2,3 being L meaning off. (My professor gave me a circuit diagram for a PIC16F84A and it had this written on it and I am trying to match these RA0 pins to B2, B3 etc. on my Pic 18f1320. A picture of what he gave me and the microcontroller and 2 H bridges are below:
http://i43.tinypic.com/smy7t4.jpg
I am using a PCW compiler program to compile the code in C+ then MPLAB to program the microcontroller. This is what I have thus far for one step but how do I stop it, reverse it, and loop it.
*PLEASE place comments along the code so I know whats going on so I can edit delays etc.
Here is the code I made thusfar and it compiled fine in PCW compiler program:
CODE:
The datasheet for the pic18f1320 is below:
PIC18F1220/1320 Data Sheet 18/20/28-Pin High ... - Microchip
I know its suppose to be in 4 parts with the Coil Energization Sequence as follows
(I believe this is the correctly matched pins:
RA0=B3
RA1=B2
RA2=A7
RA3=A6
Coil Energization Sequence
RA0: H-H-L-L-L
RA1: L-L-H-H-L
RA2: H-L-L-H-L
RA3: L-H-H-L-L
with H being high output and L being low and the last L for RA0,1,2,3 being L meaning off. (My professor gave me a circuit diagram for a PIC16F84A and it had this written on it and I am trying to match these RA0 pins to B2, B3 etc. on my Pic 18f1320. A picture of what he gave me and the microcontroller and 2 H bridges are below:
http://i43.tinypic.com/smy7t4.jpg
I am using a PCW compiler program to compile the code in C+ then MPLAB to program the microcontroller. This is what I have thus far for one step but how do I stop it, reverse it, and loop it.
*PLEASE place comments along the code so I know whats going on so I can edit delays etc.
Here is the code I made thusfar and it compiled fine in PCW compiler program:
CODE:
Rich (BB code):
#include <18f1320.h> /*tell compiler we are using a 18f1320.h microcontroller */
#fuses INTRC_IO,NOLVP,NOWDT,PUT
#use delay (clock=4000000)
//LED lights
#define GREEN_LED PIN_A3
#define YELLOW_LED PIN_B0
#define RED_LED PIN_B1
//methods
Main(){
void part_1(void){
Output_low(PIN_A3); //led green
Output_low(PIN_B2);
Output_high(PIN_B3);
Output_high(PIN_A7);
Output_low(PIN_A6);
Delay_ms(2500);
Output_high(PIN_A3);
//turn off led
}
void part_2(void) {
Output_low(PIN_B1); //led yellow
Output_high(PIN_B3);
Output_low(PIN_B2);
Output_low(PIN_A7);
Output_high(PIN_A6);
Delay_ms(2500);
Output_high(PIN_B1);
}
void part_3(void) {
Output_low(PIN_B0); //led red
Output_low(PIN_B3);
Output_high(PIN_B2);
Output_low(PIN_A7);
Output_high(PIN_A6);
Delay_ms(2500);
Output_high(PIN_B0);
}
void part_4(void) {
Output_low(PIN_B0); //led red
Output_low(PIN_B3);
Output_high(PIN_B2);
Output_high(PIN_A7);
Output_low(PIN_A6);
Delay_ms(2500);
Output_high(PIN_B0);
}
}