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i wrote a code for adc with rs232 in mikroC , to control a stepper with feedback, here i just made dummy values just to toggle the port bits , but its not working as the condition is satisfied , what will be the problem ?
Rich (BB code):
unsigned char ch; //
unsigned int adc_rd; // Declare variables
char *text; //
long tlong,ulong;
char output[7];
int i,rot;
float ufloat,tfloat;
int uint;
void main() {
CMCON |= 7;
ADCON1 = 0X04;
ADCON1 = 0;
TRISA = 0x04;
ADCON1 = 0x80;
TRISB =0; //
PORTB=0x00;
while (1) {
adc_rd = ADC_Read(2); // A/D conversion. Pin RA2 is an input.
Lcd_Out(2,1,text); // Write result in the second line
tlong = (long)adc_rd * 5000; // Convert the result in millivolts
tlong = tlong / 1023; // 0..1023 -> 0-5000mV
ch = tlong / 1000; // Extract volts (thousands of millivolts)
// from result
UART1_Init(9600); // Initialize UART1 module at 9600 bps
Delay_ms(100); // Wait for UART 1module to stabilize
UART1_Write_Text("Start");
UART1_Write(13);
UART1_Write(10);
while (!UART1_Data_Ready()); // wait for UART character in buffer
// Initialize string with all '\0'
for(i=0; i<7; i++){
output = '\0';
}
UART1_Read_Text(output, "m", 255); // read input from uart
ulong = atol(output);
while(1) {
if ( ulong =! tlong )
{
if (ulong > tlong )
{ PORTB.f1=1;
UART1_Write_Text("1");
break;
}
else //(ulong < tlong )
{PORTB.f1=0;
PORTB.f2=1;
UART1_Write_Text("2");
break;
}
}
if ( ulong == tlong )
{
PORTB.f3=1;
UART1_Write_Text("3");
PORTB.f1=0;
PORTB.f2=1;
break;
}
}
}
}
