uart 18f4550

General discussion on mikroC.
Post Reply
Author
Message
vio2010
Posts: 9
Joined: 10 Nov 2010 08:25

uart 18f4550

#1 Post by vio2010 » 10 Nov 2010 09:22

welcome
and I want to do a project with a pic18f4550 and fail to communicate with the computer, communication is via Bluetooth wireless module. want to order six stepper motors when sending characters from the PC. I did it I mikroc software in simulated in Proteus and everything seems to work only when the program does not work at all little, I tried to write the software in its spark mikroc a light character when sending a PC through the wireless module and UART that is not working. I would like help if possible, we used a 12 MHz crystal on the project.
attach code to the command and motors
/
/
///


#define TRUE 1
#define FALSE 0
#define coil_1 PORTD.F0
#define coil_2 PORTD.F1
#define coil_3 PORTD.F2
#define coil_4 PORTD.F3
#define sensor PORTA.F0
#define limist PORTA.F1
#define limidr PORTA.F2
char uart_rd;


int test_gripper(unsigned char mot,unsigned char dir) //testeaza conditiile de limitare
{ if ((mot==6) && (dir==1) && sensor) //nu mai strange gripperul (motor 6) daca ai senzorul de gripper
{UART1_Write_Text("Blocat");
UART1_Write(10);
UART1_Write(13);
return 0;
}
else
if ((mot==2) && (dir==0) && limist) //limiteaza directia (motor 2) pe cursa cu un senzor binar
return 0;
else
if ((mot==2) && (dir==1) && limidr) //limiteaza directia (motor 2) pe cursa cu un senzor binar
return 0;
else
return 1;//altfel permite actiunea...

}


void FWD_DIRECTION (unsigned char mot,unsigned char x,const int Vdelay) //x daca vrei mai multi pasi am pus sa faca numai unu
{
unsigned char c;

while (x > 0)
{
for (c=1; c < 5; c++)
if (test_gripper(mot,0))
{
if (c == 1)
{
coil_1 = TRUE;
coil_2 = TRUE;
coil_3 = FALSE;
coil_4 = FALSE;
Vdelay_ms(Vdelay);
}

if (c == 2)
{
coil_1 = TRUE;
coil_2 = FALSE;
coil_3 = FALSE;
coil_4 = TRUE;
Vdelay_ms (Vdelay);

}

if (c == 3)
{
coil_1 = FALSE;
coil_2 = FALSE;
coil_3 = TRUE;
coil_4 = TRUE;
Vdelay_ms (Vdelay);
}

if (c == 4)
{
coil_1 = FALSE;
coil_2 = TRUE;
coil_3 = TRUE;
coil_4 = FALSE;
Vdelay_ms (Vdelay);
}
}
x--;
}
}

void REV_DIRECTION (unsigned char mot,unsigned char x,const int Vdelay)
{
unsigned char c;

while (x > 0)
{
for (c=1; c < 5; c++)
if (test_gripper(mot,1))
{
if (c == 1)
{
coil_1 = TRUE;
coil_2 = TRUE;
coil_3 = FALSE;
coil_4 = FALSE;
Vdelay_ms (Vdelay);
}

if (c == 2)
{
coil_1 = FALSE;
coil_2 = TRUE;
coil_3 = TRUE;
coil_4 = FALSE;
Vdelay_ms (Vdelay);
}

if (c == 3)
{
coil_1 = FALSE;
coil_2 = FALSE;
coil_3 = TRUE;
coil_4 = TRUE;
Vdelay_ms (Vdelay);
}

if (c == 4)
{
coil_1 = TRUE;
coil_2 = FALSE;
coil_3 = FALSE;
coil_4 = TRUE;
Vdelay_ms (Vdelay);
}
}
x--;
}
}

void motor(unsigned char mot,unsigned char dir,int _Vdelay)
{
switch(mot)
{
case 1: PORTB=0b00000001;
break;
case 2: PORTB=0b00000010;
break;
case 3: PORTB=0b00000100;
break;
case 4: PORTB=0b00001000;
break;
case 5: PORTB=0b00010000;
break;
case 6: PORTB=0b00100000;
break;
/// etc .........
default:
break;
}
if(dir==0)FWD_DIRECTION(mot,1,_Vdelay);
if(dir==1)REV_DIRECTION(mot,1,_Vdelay);
PORTB=0;
PORTD=0;

}





void main() {
ADCON1 |= 0x0F; // Configure all ports with analog function as digital
CMCON |= 7; // Disable comparators
PORTA=0;
PORTB=0;
PORTD=0;
TRISB=0;
TRISD=0;

UART1_Init(9600); // Initialize UART module at 9600 bps
Vdelay_ms(100); // Wait for UART module to stabilize

UART1_Write_Text("Start");
UART1_Write(10);
UART1_Write(13);
while (1) { // Endless loop
if (UART1_Data_Ready()) { // If data is received,
uart_rd = UART1_Read(); // read the received data,
/// UART1_Write(uart_rd); // and send data via UART

switch(uart_rd)
{
case 'A': motor(1,0,100);
break;
case 'B': motor(1,1,100);
break;
case 'C': motor(2,0,100);
break;
case 'D': motor(2,1,100);
break;
case 'E': motor(3,0,100);
break;
case 'F': motor(3,1,100);
break;
case 'G': motor(4,0,100);
break;
case 'H': motor(4,1,100);
break;
case 'I': motor(5,0,100);
break;
case 'J': motor(5,1,100);
break;
case 'K': motor(6,0,100);
break;
case 'L': motor(6,1,100);
break;
default:
break;
//..................
}

}
}
}

Sobrietytest
Posts: 619
Joined: 05 Jul 2008 06:05
Location: Thailand

Re: uart 18f4550

#2 Post by Sobrietytest » 10 Nov 2010 11:39

I think the best thing for you to do is to write a short program to test the Bluetooth link, make sure it's working before you start working with the motor control.

Post Reply

Return to “mikroC General”