Já už nevím napadá mi jestli nedělám chybu TEMP_RESOLUTION protože nevím jak nastavit na 9 defaultně je 12.
Tento zdroják mi funguje
// LCD module connections
sbit LCD_RS at RB4_bit;
sbit LCD_EN at RB5_bit;
sbit LCD_D4 at RB0_bit;
sbit LCD_D5 at RB1_bit;
sbit LCD_D6 at RB2_bit;
sbit LCD_D7 at RB3_bit;
sbit LCD_RS_Direction at TRISB4_bit;
sbit LCD_EN_Direction at TRISB5_bit;
sbit LCD_D4_Direction at TRISB0_bit;
sbit LCD_D5_Direction at TRISB1_bit;
sbit LCD_D6_Direction at TRISB2_bit;
sbit LCD_D7_Direction at TRISB3_bit;
// End LCD module connections
// Set TEMP_RESOLUTION to the corresponding resolution of used DS18x20 sensor:
// 18S20: 9 (default setting; can be 9,10,11,or 12)
// 18B20: 12
const unsigned short TEMP_RESOLUTION = 9;//9;
char *text = "000.0000";
unsigned temp,tempi; // -původní deklarace
//unsigned int temp;
void Display_Temperature(unsigned int temp2write) {
const unsigned short RES_SHIFT = TEMP_RESOLUTION - 8;
char temp_whole;
unsigned int temp_fraction;
unsigned char Znak;
Znak = 1; //Hodnota 1 při kladné teplotě
// Check if temperature is negative
if (temp2write & 0x8000)
{
Znak = 0; //Hodnota nula při záporné teplotě
temp2write = ~temp2write + 1;
}
// Extract temp_whole
temp_whole = temp2write >> RES_SHIFT ;
// Convert temp_whole to characters
if (temp_whole/100)
text[0] = temp_whole/100 + 48;
else
text[0] = ' ';
text[1] = (temp_whole/10)%10 + 48; // Extract tens digit
//Potlačení zobrazení zbytečných nul
if ((text[0]) == ' ')
{
if ((text[1]) == 48)
{
text[1] = ' ';
}
}
//Zobrazení záporného znaménka
if (Znak == 0)
{
text[0] = '-';
}
text[2] = temp_whole%10 + 48; // Extract ones digit
// Extract temp_fraction and convert it to unsigned int
temp_fraction = temp2write << (4-RES_SHIFT);
temp_fraction &= 0x0F;
temp_fraction *= 625;
// Convert temp_fraction to characters
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
// Print temperature on LCD
Lcd_Out(2, 5, text);
}
display(unsigned int temp2write) {
unsigned int i,x;
x=0;
//temp << 1;
for ( i = 16; i > 0; i--) {
//Lcd_Chr(1,x++,'0');
if((temp & (1<< i)) == 0)Lcd_Chr(1,x++,'0'); else Lcd_Chr(1,x++, '1');
}
}
void main() {
//ANSEL = 0; // Configure AN pins as digital I/O
//ANSELH = 0;
//C1ON_bit = 0; // Disable comparators
//C2ON_bit = 0;
TRISA1_bit = 1; //uprava tlacitko
CMCON = 0x07;
Lcd_Init(); // Initialize LCD
Lcd_Cmd(_LCD_CLEAR); // Clear LCD
Lcd_Cmd(_LCD_CURSOR_OFF); // Turn cursor off
Lcd_Out(1, 1, " Temperature: ");
// Print degree character, 'C' for Centigrades
Sound_Init(&PORTA, 0);
Sound_Play(980, 1000);
Lcd_Chr(2,13,223); // Different LCD displays have different char code for degree
// If you see greek alpha letter try typing 178 instead of 223
Lcd_Chr(2,14,'C');
//--- Main loop
do {
//--- Perform temperature reading
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_ms(1000);//Delay_us(10000); puvodne 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);
tempi = temp;
temp = (Ow_Read(&PORTA, 2) << 8) + temp;
//--- Format and display result on Lcd
if (Button(&PORTA, 1, 1, 1)){
display(tempi);
}
Display_Temperature(temp);
Delay_ms(500);
} while (1);
}[/code]
já jsem z něho vyrval jen tu část která by měla vyčíst teplotu s toho čidla,
zakomentovaná proměnná ahoj to je zkouška převodu čísla na string a poslaní na UART1 to funguje .
Ale teplota kterou si nastavím na čidle 69 stupňů v terminálu ukazuje 80 :blush: :blush:
[code] unsigned int temp,tempi;
//unsigned ahoj;
char szNumber[4];
void main() {
//ANSEL = 0; // Configure AN pins as digital I/O
//ANSELH = 0;
//C1ON_bit = 0; // Disable comparators
//C2ON_bit = 0;
TRISA1_bit = 1; //uprava tlacitko
CMCON = 0x07;
//Lcd_Init(); // Initialize LCD
//Lcd_Cmd(_LCD_CLEAR); // Clear LCD
//Lcd_Cmd(_LCD_CURSOR_OFF); // Turn cursor off
//Lcd_Out(1, 1, " Temperature: ");
// Print degree character, 'C' for Centigrades
Sound_Init(&PORTA, 0);
Sound_Play(500, 1000);
//Lcd_Chr(2,13,223); // Different LCD displays have different char code for degree
UART1_Init(9600); // If you see greek alpha letter try typing 178 instead of 223
//ahoj = 100 ;
//--- Main loop
do {
//--- Perform temperature reading
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_ms(1000);//Delay_us(10000); puvodne 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);
//tempi = temp;
//temp = (Ow_Read(&PORTA, 2) << 8) + temp;
// If data is ready, read it:
// If data is ready, read it:
//tempi =temp;
tempi= temp / 16;
Bytetostr(temp,szNumber);
UART1_Write_text(szNumber);
//UART1_Read_Text(temp);
//--- Format and display result on Lcd
//Sound_Play(980,1000);
if (temp == 80) {
Sound_Play(980,1000);
}
// if (temp == 128){
//Sound_Play(100,1000);
//}
Delay_ms(500);
} while (1);
jinak děkuji za ten přeložený dataset
prosím o shovívavost …