nie wiem tylko dlaczego sobie utrudniasz sprawę i w ustawieniach portów piszesz takie wartości: 0x40, 0x20 itd... czy nie lepiej wygląda zapis jak był początkowo w kodzie???
Proszę oto kody od dht, ale nie sądzę, żeby wina leżała po stronie tych plików, bo jak dam tylko instrukcję na wyświetlacz w kodzie to efekt jest ten sam.
[syntax=c]/*
DHT Library 0x03
copyright (c) Davide Gironi, 2012
Released under GPLv3.
Please refer to LICENSE file for licensing information.
References:
- DHT-11 Library, by Charalampos Andrianakis on 18/12/11
*/
#ifndef DHT_H_
#define DHT_H_
//setup port
#define DHT_DDR DDRC
#define DHT_PORT PORTC
#define DHT_PIN PINC
#define DHT_INPUTPIN PC0
//sensor type
#define DHT_DHT11 1
#define DHT_DHT22 2
#define DHT_TYPE DHT_DHT11
//enable decimal precision (float)
#if DHT_TYPE == DHT_DHT11
#define DHT_FLOAT 0
#elif DHT_TYPE == DHT_DHT22
#define DHT_FLOAT 1
#endif
//timeout retries
#define DHT_TIMEOUT 200
//functions
#if DHT_FLOAT == 1
extern int8_t dht_gettemperature(float *temperature);
extern int8_t dht_gethumidity(float *humidity);
extern int8_t dht_gettemperaturehumidity(float *temperature, float *humidity);
#elif DHT_FLOAT == 0
extern int8_t dht_gettemperature(int8_t *temperature);
extern int8_t dht_gethumidity(int8_t *humidity);
extern int8_t dht_gettemperaturehumidity(int8_t *temperature, int8_t *humidity);
#endif
#endif[/syntax]
[syntax=c]/*
DHT Library 0x03
copyright (c) Davide Gironi, 2012
Released under GPLv3.
Please refer to LICENSE file for licensing information.
*/
#include <stdio.h>
#include <string.h>
#include <avr/io.h>
#include <util/delay.h>
#include "dht.h"
/*
* get data from sensor
*/
#if DHT_FLOAT == 1
int8_t dht_getdata(float *temperature, float *humidity) {
#elif DHT_FLOAT == 0
int8_t dht_getdata(int8_t *temperature, int8_t *humidity) {
#endif
uint8_t bits[5];
uint8_t i,j = 0;
memset(bits, 0, sizeof(bits));
//reset port
DHT_DDR |= (1<<DHT_INPUTPIN); //output
DHT_PORT |= (1<<DHT_INPUTPIN); //high
_delay_ms(100);
//send request
DHT_PORT &= ~(1<<DHT_INPUTPIN); //low
#if DHT_TYPE == DHT_DHT11
_delay_ms(18);
#elif DHT_TYPE == DHT_DHT22
_delay_us(500);
#endif
DHT_PORT |= (1<<DHT_INPUTPIN); //high
DHT_DDR &= ~(1<<DHT_INPUTPIN); //input
_delay_us(40);
//check start condition 1
if((DHT_PIN & (1<<DHT_INPUTPIN))) {
return -1;
}
_delay_us(80);
//check start condition 2
if(!(DHT_PIN & (1<<DHT_INPUTPIN))) {
return -1;
}
_delay_us(80);
//read the data
uint16_t timeoutcounter = 0;
for (j=0; j<5; j++) { //read 5 byte
uint8_t result=0;
for(i=0; i<8; i++) {//read every bit
timeoutcounter = 0;
while(!(DHT_PIN & (1<<DHT_INPUTPIN))) { //wait for an high input (non blocking)
timeoutcounter++;
if(timeoutcounter > DHT_TIMEOUT) {
return -1; //timeout
}
}
_delay_us(30);
if(DHT_PIN & (1<<DHT_INPUTPIN)) //if input is high after 30 us, get result
result |= (1<<(7-i));
timeoutcounter = 0;
while(DHT_PIN & (1<<DHT_INPUTPIN)) { //wait until input get low (non blocking)
timeoutcounter++;
if(timeoutcounter > DHT_TIMEOUT) {
return -1; //timeout
}
}
}
bits[j] = result;
}
//reset port
DHT_DDR |= (1<<DHT_INPUTPIN); //output
DHT_PORT |= (1<<DHT_INPUTPIN); //low
_delay_ms(100);
//check checksum
if ((uint8_t)(bits[0] + bits[1] + bits[2] + bits[3]) == bits[4]) {
//return temperature and humidity
#if DHT_TYPE == DHT_DHT11
*temperature = bits[2];
*humidity = bits[0];
#elif DHT_TYPE == DHT_DHT22
uint16_t rawhumidity = bits[0]<<8 | bits[1];
uint16_t rawtemperature = bits[2]<<8 | bits[3];
if(rawtemperature & 0x8000) {
*temperature = (float)((rawtemperature & 0x7FFF) / 10.0) * -1.0;
} else {
*temperature = (float)(rawtemperature)/10.0;
}
*humidity = (float)(rawhumidity)/10.0;
#endif
return 0;
}
return -1;
}
/*
* get temperature
*/
#if DHT_FLOAT == 1
int8_t dht_gettemperature(float *temperature) {
float humidity = 0;
#elif DHT_FLOAT == 0
int8_t dht_gettemperature(int8_t *temperature) {
int8_t humidity = 0;
#endif
return dht_getdata(temperature, &humidity);
}
/*
* get humidity
*/
#if DHT_FLOAT == 1
int8_t dht_gethumidity(float *humidity) {
float temperature = 0;
#elif DHT_FLOAT == 0
int8_t dht_gethumidity(int8_t *humidity) {
int8_t temperature = 0;
#endif
return dht_getdata(&temperature, humidity);
}
/*
* get temperature and humidity
*/
#if DHT_FLOAT == 1
int8_t dht_gettemperaturehumidity(float *temperature, float *humidity) {
#elif DHT_FLOAT == 0
int8_t dht_gettemperaturehumidity(int8_t *temperature, int8_t *humidity) {
#endif
return dht_getdata(temperature, humidity);
}[/syntax]
Quote:
co zrobiłeś z pinem RW?? do masy??
Quote:
ew zobacz czy przypadkiem nie pomieszałeś pinów DB4-DB7 wyświetlacza
P.S.
Quote:
masę można brać z pinu 4, 6, 8, 10 (obojętne) tak czy tak w programatorze te piny są razem połączone.
Statystyki: Napisane przez Ifor — 7 gru 2013, o 17:13
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