newbie111
Member level 2
hi folks
i am using 16f690 8 m external osc compile everything with mikro c pro
i followed the examples and made this temp logger
everything worked out
*****************
i have been trying to write some codes to turn off the led on portc.7
when a certain degree is reached (let's say led goes off when it is 20 degrees)
but
i failed to do so
if anyone knows how to make it, pls kindly teach me
Thank you so much in advance
i am using 16f690 8 m external osc compile everything with mikro c pro
i followed the examples and made this temp logger
everything worked out
*****************
i have been trying to write some codes to turn off the led on portc.7
when a certain degree is reached (let's say led goes off when it is 20 degrees)
but
i failed to do so
if anyone knows how to make it, pls kindly teach me
Thank you so much in advance
Code:
sbit LCD_RS at Rc4_bit;
sbit LCD_EN at Rc5_bit;
sbit LCD_D4 at Rc0_bit;
sbit LCD_D5 at Rc1_bit;
sbit LCD_D6 at Rc2_bit;
sbit LCD_D7 at Rc3_bit;
sbit LCD_RS_Direction at TRISc4_bit;
sbit LCD_EN_Direction at TRISc5_bit;
sbit LCD_D4_Direction at TRISc0_bit;
sbit LCD_D5_Direction at TRISc1_bit;
sbit LCD_D6_Direction at TRISc2_bit;
sbit LCD_D7_Direction at TRISc3_bit;
const unsigned short TEMP_RESOLUTION = 12;
char *text = "000.0000";
unsigned temp;
void Display_Temperature(unsigned int temp2write) {
const unsigned short RES_SHIFT = TEMP_RESOLUTION - 8;
char temp_whole;
unsigned int temp_fraction;
if (temp2write & 0x8000) {
text[0] = '-';
temp2write = ~temp2write + 1;
}
temp_whole = temp2write >> RES_SHIFT ;
if (temp_whole/100)
text[0] = (temp_whole/100) + 48;
else
text[0] = '0';
text[1] = (temp_whole/10)%10 + 48;
text[2] = temp_whole%10 + 48;
temp_fraction = temp2write << (4-RES_SHIFT);
temp_fraction &= 0x000F;
temp_fraction *= 625;
text[4] = temp_fraction/1000 + 48; // Extract thousands digit
text[5] = (temp_fraction/100)%10 + 48; // Extract hundreds digit
text[6] = (temp_fraction/10)%10 + 48; // Extract tens digit
text[7] = temp_fraction%10 + 48; // Extract ones digit
Lcd_Out(2, 5, text);
UART1_Write(10);
UART1_Write(13);
UART1_Write_Text("Current temp: ");
UART1_Write_Text (text);
delay_ms(2000);
}
void main() {
ANSEL = 0;
ANSELH = 0;
C1ON_bit = 0;
C2ON_bit = 0;
trisc=0x00;
portc.B7=1;
Lcd_Init();
Lcd_Cmd(_LCD_CLEAR);
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1, 1, " Temperature: ");
Lcd_Chr(2,13,223);
Lcd_Chr(2,14,'C');
UART1_Init(9600);
Delay_ms(100);
do {
Ow_Reset(&PORTa, 2); // Onewire reset signal
Ow_Write(&PORTa, 2, 0xCC); // Issue command SKIP_ROM
Ow_Write(&PORTa, 2, 0x44); // Issue command CONVERT_T
Delay_us(120);
Ow_Reset(&PORTa, 2);
Ow_Write(&PORTa, 2, 0xCC); // Issue command SKIP_ROM
Ow_Write(&PORTa, 2, 0xBE); // Issue command READ_SCRATCHPAD
temp = Ow_Read(&PORTa, 2);
temp = (Ow_Read(&PORTa, 2) << 8) + temp;
//--- Format and display result on Lcd
Display_Temperature(temp);
Delay_ms(500);
} while (1);
}