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...
a893589a9c
@ -1,274 +0,0 @@
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/*
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* This file is part of the bmp180 project.
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* Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
|
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||||||
* it under the terms of the GNU General Public License as published by
|
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||||||
* the Free Software Foundation, either version 3 of the License, or
|
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||||||
* (at your option) any later version.
|
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||||||
*
|
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||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
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||||||
*/
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#include <stdio.h>
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#include <usefull_macros.h>
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#include "i2c.h"
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#include "BMP180.h"
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static uint8_t addr = 0x77;
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typedef enum{
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BMP180_OVERS_1 = 0, // oversampling is off
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BMP180_OVERS_2 = 1,
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BMP180_OVERS_4 = 2,
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BMP180_OVERS_8 = 3,
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BMP180_OVERSMAX = 4
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} BMP180_oversampling;
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#define BMP180_CHIP_ID 0x55
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/**
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* BMP180 registers
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*/
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#define BMP180_REG_OXLSB (0xF8)
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#define BMP180_REG_OLSB (0xF7)
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#define BMP180_REG_OMSB (0xF6)
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#define BMP180_REG_OUT (BMP180_REG_OMSB)
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#define BMP180_REG_CTRLMEAS (0xF4)
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#define BMP180_REG_SOFTRESET (0xE0)
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#define BMP180_REG_ID (0xD0)
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#define BMP180_REG_CALIB (0xAA)
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// shift for oversampling
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#define BMP180_CTRLM_OSS_SHIFT (6)
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// start measurement
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#define BMP180_CTRLM_SCO (1<<5)
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// write it to BMP180_REG_SOFTRESET for soft reset
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#define BMP180_SOFTRESET_VAL (0xB6)
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// start measurement of T/P
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#define BMP180_READ_T (0x0E)
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#define BMP180_READ_P (0x14)
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typedef enum{
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WAIT_T,
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WAIT_P,
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WAIT_NONE
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} waitmsr_t;
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static waitmsr_t wait4 = WAIT_NONE;
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static BMP180_oversampling bmp180_os = BMP180_OVERSMAX;
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static struct {
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int16_t AC1;
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int16_t AC2;
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int16_t AC3;
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uint16_t AC4;
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uint16_t AC5;
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uint16_t AC6;
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int16_t B1;
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int16_t B2;
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int16_t MB;
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int16_t MC;
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int16_t MD;
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int32_t MCfix;
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int32_t AC1_fix;
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} __attribute__ ((packed)) CaliData = {0};
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static sensor_status_t bmpstatus = SENS_NOTINIT;
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static uint8_t calidata_rdy = 0;
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//static uint32_t milliseconds_start = 0; // time of measurement start
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//static uint32_t p_delay = 8; // delay for P measurement
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static uint8_t uncomp_data[3]; // raw uncompensated data
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static int32_t Tval; // uncompensated T value
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// compensated values:
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static uint32_t Pmeasured; // Pa
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static float Tmeasured; // degC
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static uint8_t devID = 0;
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/*
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static void BMP180_setOS(BMP180_oversampling os){
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bmp180_os = os & 0x03;
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}*/
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// get compensation data, return 1 if OK
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static int readcompdata(){
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FNAME();
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if(!i2c_read_data8(BMP180_REG_CALIB, sizeof(CaliData), (uint8_t*)&CaliData)) return FALSE;
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// convert big-endian into little-endian
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uint8_t *arr = (uint8_t*)&CaliData;
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for(int i = 0; i < (int)sizeof(CaliData); i+=2){
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register uint8_t val = arr[i];
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arr[i] = arr[i+1];
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arr[i+1] = val;
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}
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// prepare for further calculations
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CaliData.MCfix = CaliData.MC << 11;
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CaliData.AC1_fix = CaliData.AC1 << 2;
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calidata_rdy = 1;
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DBG("Calibration rdy");
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return TRUE;
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}
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// do a soft-reset procedure
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static int BMP180_reset(){
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if(!i2c_write_reg8(BMP180_REG_SOFTRESET, BMP180_SOFTRESET_VAL)){
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DBG("Can't reset\n");
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return FALSE;
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}
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return TRUE;
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}
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||||||
// read compensation data & write registers
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static int BMP180_init(){
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bmpstatus = SENS_NOTINIT ;
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if(!BMP180_reset()) return FALSE;
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if(!i2c_read_reg8(BMP180_REG_ID, &devID)){
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DBG("Can't read BMP180_REG_ID");
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return FALSE;
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}
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DBG("Got device ID: 0x%02x", devID);
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if(devID != BMP180_CHIP_ID){
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DBG("Not BMP180\n");
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return FALSE;
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}
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if(!readcompdata()){
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DBG("Can't read calibration data\n");
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return FALSE;
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}else{
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DBG("AC1=%d, AC2=%d, AC3=%d, AC4=%u, AC5=%u, AC6=%u", CaliData.AC1, CaliData.AC2, CaliData.AC3, CaliData.AC4, CaliData.AC5, CaliData.AC6);
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||||||
DBG("B1=%d, B2=%d", CaliData.B1, CaliData.B2);
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||||||
DBG("MB=%d, MC=%d, MD=%d", CaliData.MB, CaliData.MC, CaliData.MD);
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||||||
}
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bmpstatus = SENS_RELAX;
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||||||
return TRUE;
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||||||
}
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// start measurement, @return 1 if all OK
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static int BMP180_start(){
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if(!calidata_rdy || bmpstatus == SENS_BUSY) return FALSE;
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uint8_t reg = BMP180_READ_T | BMP180_CTRLM_SCO;
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if(!i2c_write_reg8(BMP180_REG_CTRLMEAS, reg)){
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bmpstatus = SENS_ERR;
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||||||
DBG("Can't write CTRL reg\n");
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return FALSE;
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||||||
}
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bmpstatus = SENS_BUSY;
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wait4 = WAIT_T;
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return TRUE;
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}
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||||||
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// calculate T degC and P in Pa
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static inline void compens(uint32_t Pval){
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// T:
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int32_t X1 = ((Tval - CaliData.AC6)*CaliData.AC5) >> 15;
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int32_t X2 = CaliData.MCfix / (X1 + CaliData.MD);
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int32_t B5 = X1 + X2;
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Tmeasured = (B5 + 8.) / 160.;
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// P:
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int32_t B6 = B5 - 4000;
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X1 = (CaliData.B2 * ((B6*B6) >> 12)) >> 11;
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X2 = (CaliData.AC2 * B6) >> 11;
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int32_t X3 = X1 + X2;
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int32_t B3 = (((CaliData.AC1_fix + X3) << bmp180_os) + 2) >> 2;
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X1 = (CaliData.AC3 * B6) >> 13;
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X2 = (CaliData.B1 * ((B6 * B6) >> 12)) >> 16;
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X3 = ((X1 + X2) + 2) >> 2;
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uint32_t B4 = (CaliData.AC4 * (uint32_t) (X3 + 32768)) >> 15;
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uint32_t B7 = (uint32_t)((int32_t)Pval - B3) * (50000 >> bmp180_os);
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int32_t p = 0;
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||||||
if(B7 < 0x80000000){
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||||||
p = (B7 << 1) / B4;
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||||||
}else{
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||||||
p = (B7 / B4) << 1;
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||||||
}
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X1 = p >> 8;
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||||||
X1 *= X1;
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X1 = (X1 * 3038) >> 16;
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||||||
X2 = (-7357 * p) / 65536;
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||||||
Pmeasured = p + ((X1 + X2 + 3791) / 16);
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||||||
}
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static int still_measuring(){
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uint8_t reg;
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if(!i2c_read_reg8(BMP180_REG_CTRLMEAS, ®)) return TRUE;
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if(reg & BMP180_CTRLM_SCO){
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return TRUE;
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||||||
}
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||||||
return FALSE;
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|
||||||
}
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|
||||||
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static sensor_status_t BMP180_process(){
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uint8_t reg;
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if(bmpstatus != SENS_BUSY) goto ret;
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||||||
if(wait4 == WAIT_T){ // wait for temperature
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|
||||||
if(still_measuring()) goto ret;
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|
||||||
// get uncompensated data
|
|
||||||
DBG("Read uncompensated T\n");
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if(!i2c_read_data8(BMP180_REG_OUT, 2, uncomp_data)){
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|
||||||
bmpstatus = SENS_ERR;
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|
||||||
goto ret;
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|
||||||
}
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|
||||||
Tval = uncomp_data[0] << 8 | uncomp_data[1];
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|
||||||
DBG("Start P measuring\n");
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|
||||||
reg = BMP180_READ_P | BMP180_CTRLM_SCO | (bmp180_os << BMP180_CTRLM_OSS_SHIFT);
|
|
||||||
if(!i2c_write_reg8(BMP180_REG_CTRLMEAS, reg)){
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|
||||||
bmpstatus = SENS_ERR;
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|
||||||
goto ret;
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|
||||||
}
|
|
||||||
wait4 = WAIT_P;
|
|
||||||
}else{ // wait for pressure
|
|
||||||
if(still_measuring()) goto ret;
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|
||||||
DBG("Read uncompensated P\n");
|
|
||||||
if(!i2c_read_data8(BMP180_REG_OUT, 3, uncomp_data)){
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||||||
bmpstatus = SENS_ERR;
|
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||||||
goto ret;
|
|
||||||
}
|
|
||||||
uint32_t Pval = uncomp_data[0] << 16 | uncomp_data[1] << 8 | uncomp_data[2];
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||||||
Pval >>= (8 - bmp180_os);
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|
||||||
// calculate compensated values
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|
||||||
compens(Pval);
|
|
||||||
DBG("All data ready\n");
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|
||||||
bmpstatus = SENS_RDY; // data ready
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|
||||||
wait4 = WAIT_NONE;
|
|
||||||
}
|
|
||||||
ret:
|
|
||||||
return bmpstatus;
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|
||||||
}
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|
||||||
|
|
||||||
// read data & convert it
|
|
||||||
static int BMP180_getdata(sensor_data_t *d){
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|
||||||
if(!d || bmpstatus != SENS_RDY) return FALSE;
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|
||||||
d->T = Tmeasured;
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|
||||||
d->P = Pmeasured / 100.; // convert Pa to hPa
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|
||||||
bmpstatus = SENS_RELAX;
|
|
||||||
return TRUE;
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|
||||||
}
|
|
||||||
|
|
||||||
static sensor_props_t BMP180_props(){
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|
||||||
sensor_props_t p = {.T = 1, .H = 0, .P = 1};
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|
||||||
return p;
|
|
||||||
}
|
|
||||||
|
|
||||||
static uint8_t address(uint8_t new){
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|
||||||
if(new) addr = new;
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|
||||||
return addr;
|
|
||||||
}
|
|
||||||
|
|
||||||
sensor_t BMP180 = {
|
|
||||||
.name = "BMP180",
|
|
||||||
.address = address,
|
|
||||||
.init = BMP180_init,
|
|
||||||
.start = BMP180_start,
|
|
||||||
.process = BMP180_process,
|
|
||||||
.properties = BMP180_props,
|
|
||||||
.get_data = BMP180_getdata
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|
||||||
};
|
|
||||||
@ -1,22 +0,0 @@
|
|||||||
/*
|
|
||||||
* This file is part of the BMP180 project.
|
|
||||||
* Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
#include "sensor.h"
|
|
||||||
|
|
||||||
extern sensor_t BMP180;
|
|
||||||
@ -1,57 +0,0 @@
|
|||||||
# run `make DEF=...` to add extra defines
|
|
||||||
PROGRAM := sensors
|
|
||||||
LDFLAGS := -fdata-sections -ffunction-sections -Wl,--gc-sections -Wl,--discard-all
|
|
||||||
LDFLAGS += -lusefull_macros -lm
|
|
||||||
SRCS := $(wildcard *.c)
|
|
||||||
DEFINES := $(DEF) -D_GNU_SOURCE -D_XOPEN_SOURCE=1111
|
|
||||||
OBJDIR := mk
|
|
||||||
CFLAGS += -O2 -Wall -Wextra -Wno-trampolines -std=gnu99
|
|
||||||
OBJS := $(addprefix $(OBJDIR)/, $(SRCS:%.c=%.o))
|
|
||||||
DEPS := $(OBJS:.o=.d)
|
|
||||||
TARGFILE := $(OBJDIR)/TARGET
|
|
||||||
CC = gcc
|
|
||||||
#TARGET := RELEASE
|
|
||||||
|
|
||||||
ifeq ($(shell test -e $(TARGFILE) && echo -n yes),yes)
|
|
||||||
TARGET := $(file < $(TARGFILE))
|
|
||||||
else
|
|
||||||
TARGET := RELEASE
|
|
||||||
endif
|
|
||||||
|
|
||||||
ifeq ($(TARGET), DEBUG)
|
|
||||||
.DEFAULT_GOAL := debug
|
|
||||||
endif
|
|
||||||
|
|
||||||
release: $(PROGRAM)
|
|
||||||
|
|
||||||
debug: CFLAGS += -DEBUG -Werror
|
|
||||||
debug: TARGET := DEBUG
|
|
||||||
debug: $(PROGRAM)
|
|
||||||
|
|
||||||
$(TARGFILE): $(OBJDIR)
|
|
||||||
@echo -e "\t\tTARGET: $(TARGET)"
|
|
||||||
@echo "$(TARGET)" > $(TARGFILE)
|
|
||||||
|
|
||||||
$(PROGRAM) : $(TARGFILE) $(OBJS)
|
|
||||||
@echo -e "\t\tLD $(PROGRAM)"
|
|
||||||
$(CC) $(OBJS) $(LDFLAGS) -o $(PROGRAM)
|
|
||||||
|
|
||||||
$(OBJDIR):
|
|
||||||
@mkdir $(OBJDIR)
|
|
||||||
|
|
||||||
ifneq ($(MAKECMDGOALS),clean)
|
|
||||||
-include $(DEPS)
|
|
||||||
endif
|
|
||||||
|
|
||||||
$(OBJDIR)/%.o: %.c
|
|
||||||
@echo -e "\t\tCC $<"
|
|
||||||
$(CC) $< -MD -c $(LDFLAGS) $(CFLAGS) $(DEFINES) -o $@
|
|
||||||
|
|
||||||
clean:
|
|
||||||
@echo -e "\t\tCLEAN"
|
|
||||||
@rm -rf $(OBJDIR) 2>/dev/null || true
|
|
||||||
|
|
||||||
xclean: clean
|
|
||||||
@rm -f $(PROGRAM)
|
|
||||||
|
|
||||||
.PHONY: clean xclean
|
|
||||||
@ -1,21 +0,0 @@
|
|||||||
Reading information from different T/P/H sensors
|
|
||||||
================================================
|
|
||||||
|
|
||||||
Supported sensors:
|
|
||||||
|
|
||||||
- BMP180 - T/P sensor
|
|
||||||
|
|
||||||
|
|
||||||
```
|
|
||||||
|
|
||||||
sensors
|
|
||||||
|
|
||||||
-a, --address=arg sensor's address (if not default)
|
|
||||||
-d, --device=arg I2C device path
|
|
||||||
-h, --help show this help
|
|
||||||
-l, --list list all supported sensors
|
|
||||||
-m, --presmm pressure in mmHg instead of hPa
|
|
||||||
-s, --sensor=arg sensor's name
|
|
||||||
|
|
||||||
```
|
|
||||||
|
|
||||||
109
I2Csensors/aht.c
109
I2Csensors/aht.c
@ -1,109 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <usefull_macros.h>
|
|
||||||
|
|
||||||
#include "aht.h"
|
|
||||||
#include "i2c.h"
|
|
||||||
|
|
||||||
static uint8_t addr = 0x38;
|
|
||||||
|
|
||||||
static sensor_status_t status = SENS_NOTINIT;
|
|
||||||
|
|
||||||
enum{
|
|
||||||
ISAHT10,
|
|
||||||
ISAHT15,
|
|
||||||
ISAHT21b
|
|
||||||
};
|
|
||||||
|
|
||||||
static uint32_t rawH = 0, rawT = 0;
|
|
||||||
|
|
||||||
#define AHT_CMD_INITIALIZE 0xE1
|
|
||||||
#define AHT_CMD_MEASURE 0xAC
|
|
||||||
#define AHT_CMD_SOFT_RESET 0xBA
|
|
||||||
|
|
||||||
static int s_init(){
|
|
||||||
status = SENS_NOTINIT;
|
|
||||||
if(!i2c_write_reg8(AHT_CMD_SOFT_RESET, 0)){
|
|
||||||
DBG("Can't reset");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
uint8_t data[3] = {AHT_CMD_INITIALIZE, 0x08, 0};
|
|
||||||
if(!i2c_write_raw(data, 3)){
|
|
||||||
DBG("Can't init");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
status = SENS_RELAX;
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int s_start(){
|
|
||||||
if(status != SENS_RELAX) return FALSE;
|
|
||||||
uint8_t data[3] = {AHT_CMD_MEASURE, 0x33, 0};
|
|
||||||
if(!i2c_write_raw(data, 3)){
|
|
||||||
DBG("Can't start measuring");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
static sensor_status_t s_process(){
|
|
||||||
uint8_t data[6];
|
|
||||||
//if(!i2c_read_data8(0, 6, data)) return (status = SENS_ERR);
|
|
||||||
if(!i2c_read_raw(data, 6)) return (status = SENS_ERR);
|
|
||||||
#ifdef EBUG
|
|
||||||
printf("Got data: "); for(int i = 0; i < 6; ++i) printf(" %02X", data[i]); printf("\n");
|
|
||||||
if(data[0] & 0x80) printf("BUSY ");
|
|
||||||
static const char *modes[] = {"NOR", "CYC", "CMD", "CMD"};
|
|
||||||
printf("MODE=%s ", modes[(data[0] >> 6)&3]);
|
|
||||||
printf("%sCALIBRATED\n", data[0] & 8 ? "" : "NOT ");
|
|
||||||
#endif
|
|
||||||
if(data[0] & 0x80) return (status = SENS_BUSY); // still measuring
|
|
||||||
rawH = ((uint32_t)data[1] << 12) | ((uint32_t)data[2] << 4) | (data[3] >> 4);
|
|
||||||
rawT = ((uint32_t)(data[3] & 0x0F) << 16) | ((uint32_t)data[4] << 8) | data[5];
|
|
||||||
DBG("rawH=%d, rawT=%d", rawH, rawT);
|
|
||||||
return (status = SENS_RDY);
|
|
||||||
}
|
|
||||||
|
|
||||||
static int s_getdata(sensor_data_t *d){
|
|
||||||
if(!d || status != SENS_RDY) return FALSE;
|
|
||||||
d->T = rawT * 200.0 / 1048576.0 - 50.0;
|
|
||||||
d->H = rawH * 100.0 / 1048576.0;
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
static sensor_props_t s_props(){
|
|
||||||
sensor_props_t p = {.T = 1, .H = 1, .P = 0};
|
|
||||||
return p;
|
|
||||||
}
|
|
||||||
|
|
||||||
static uint8_t address(uint8_t new){
|
|
||||||
if(new) addr = new;
|
|
||||||
return addr;
|
|
||||||
}
|
|
||||||
|
|
||||||
sensor_t AHT10 = {
|
|
||||||
.name = "AHT10",
|
|
||||||
.private = ISAHT10,
|
|
||||||
.address = address,
|
|
||||||
.init = s_init,
|
|
||||||
.start = s_start,
|
|
||||||
.process = s_process,
|
|
||||||
.properties = s_props,
|
|
||||||
.get_data = s_getdata
|
|
||||||
};
|
|
||||||
@ -1,22 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
|
|
||||||
#include "sensor.h"
|
|
||||||
|
|
||||||
extern sensor_t AHT10;
|
|
||||||
@ -1,14 +0,0 @@
|
|||||||
Датчики влажности[-температуры[-давления]]
|
|
||||||
|
|
||||||
# датчик = паспортная точность по влажности/температуре/давлению = доступные ID = максимальная скорость = примечание
|
|
||||||
AM2320 = 3%/0.5°/- = 0x5C = 100k* = (*) модбас (!!!) поверх I2C; желательно питать 5В, хоть вроде должен и от 3.3
|
|
||||||
AHT10 = 2%/0.3°/- = 0x38/0x39 = 400k = ADDR выбирает младший бит
|
|
||||||
AHT15 = 2%/0.3°/- = 0x38 = 400k = непонятно, чем от 10 отличается
|
|
||||||
AHT21b = 3%/0.5°/- = 0x38 = 400k =
|
|
||||||
BMP180 = -/1°/12Pa = 0x77 = 3.4M = есть вариант с SPI, но не в общем случае
|
|
||||||
BME280 = 3%/1°/0.2Pa = 0x76/77 = 3.4M = выбор младшего бита ногой SDO, есть SPI
|
|
||||||
HTU21d = 3-5%/0.3°/- = 0x40 = 400k = в зависимости от маркировки точность 3-5%RH, бывают ШИМ и др. интерфейсы
|
|
||||||
HTU32d = 2%/0.2°/- = 0x40/0x41 = 10M = младший бит адреса выбирается ногой ADDR
|
|
||||||
SHT30 = 3%/0.3°/- = 0x44/0x45 = 1M = у SHT31 заявленная точность по влажности: 2%; младший бит адреса выбирается ногой ADDR; есть программируемая нога ALERT!
|
|
||||||
SHT4x = * = 0x44/0x45** (*) 40: 2-4%/>0.2-0.4°, 41: 2-2.5%/0.2-0.4°, 45: 1-2%/0.1-0.3°; (**) адрес зависит от маркировки (A/B); есть нагреватель; есть команда reset (0x06) по адресу 0
|
|
||||||
SI7005 = 4.5%/1°/- = 0x40 = 400k = возможен выбор с помощью ноги ~CS
|
|
||||||
271
I2Csensors/i2c.c
271
I2Csensors/i2c.c
@ -1,271 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <fcntl.h>
|
|
||||||
#include <sys/ioctl.h>
|
|
||||||
#include <asm/ioctl.h>
|
|
||||||
#include <linux/i2c.h>
|
|
||||||
#include <linux/i2c-dev.h>
|
|
||||||
#include <usefull_macros.h>
|
|
||||||
|
|
||||||
static uint8_t lastaddr = 0;
|
|
||||||
static int I2Cfd = -1;
|
|
||||||
|
|
||||||
static int i2c_rw(uint8_t *data, int len, uint16_t flags){
|
|
||||||
struct i2c_msg m;
|
|
||||||
struct i2c_rdwr_ioctl_data x = {.msgs = &m, .nmsgs = 1};
|
|
||||||
m.addr = lastaddr;
|
|
||||||
m.flags = flags; // 0 for w and I2C_M_RD for read
|
|
||||||
m.len = len;
|
|
||||||
m.buf = data;
|
|
||||||
if(ioctl(I2Cfd, I2C_RDWR, &x) < 0){
|
|
||||||
WARN("i2c_read_reg16, ioctl()");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
int i2c_write_raw(uint8_t *data, int len){
|
|
||||||
if(!data || I2Cfd < 1 || len < 1) return FALSE;
|
|
||||||
return i2c_rw(data, len, 0);
|
|
||||||
}
|
|
||||||
int i2c_read_raw(uint8_t *data, int len){
|
|
||||||
if(!data || I2Cfd < 1 || len < 1) return FALSE;
|
|
||||||
return i2c_rw(data, len, I2C_M_RD);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief i2c_read_reg8 - read 8-bit addressed register (8 bit)
|
|
||||||
* @param regaddr - register address
|
|
||||||
* @param data - data read
|
|
||||||
* @return state
|
|
||||||
*/
|
|
||||||
int i2c_read_reg8(uint8_t regaddr, uint8_t *data){
|
|
||||||
if(I2Cfd < 1) return FALSE;
|
|
||||||
struct i2c_smbus_ioctl_data args;
|
|
||||||
union i2c_smbus_data sd;
|
|
||||||
args.read_write = I2C_SMBUS_READ;
|
|
||||||
args.command = regaddr;
|
|
||||||
args.size = I2C_SMBUS_BYTE_DATA;
|
|
||||||
args.data = &sd;
|
|
||||||
if(ioctl(I2Cfd, I2C_SMBUS, &args) < 0){
|
|
||||||
WARN("i2c_read_reg8, ioctl()");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
if(data) *data = sd.byte;
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief i2c_write_reg8 - write to 8-bit addressed register
|
|
||||||
* @param regaddr - address
|
|
||||||
* @param data - data
|
|
||||||
* @return state
|
|
||||||
*/
|
|
||||||
int i2c_write_reg8(uint8_t regaddr, uint8_t data){
|
|
||||||
if(I2Cfd < 1) return FALSE;
|
|
||||||
struct i2c_smbus_ioctl_data args;
|
|
||||||
union i2c_smbus_data sd;
|
|
||||||
sd.byte = data;
|
|
||||||
args.read_write = I2C_SMBUS_WRITE;
|
|
||||||
args.command = regaddr;
|
|
||||||
args.size = I2C_SMBUS_BYTE_DATA;
|
|
||||||
args.data = &sd;
|
|
||||||
if(ioctl(I2Cfd, I2C_SMBUS, &args) < 0){
|
|
||||||
WARN("i2c_write_reg8, ioctl()");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief i2c_read_reg16 - read 16-bit addressed register (to 16-bit data)
|
|
||||||
* @param regaddr - address
|
|
||||||
* @param data - data
|
|
||||||
* @return state
|
|
||||||
*/
|
|
||||||
int i2c_read_reg16(uint16_t regaddr, uint16_t *data){
|
|
||||||
if(I2Cfd < 1) return FALSE;
|
|
||||||
struct i2c_msg m[2];
|
|
||||||
struct i2c_rdwr_ioctl_data x = {.msgs = m, .nmsgs = 2};
|
|
||||||
m[0].addr = lastaddr; m[1].addr = lastaddr;
|
|
||||||
m[0].flags = 0;
|
|
||||||
m[1].flags = I2C_M_RD;
|
|
||||||
m[0].len = 2; m[1].len = 2;
|
|
||||||
uint8_t a[2], d[2] = {0};
|
|
||||||
a[0] = regaddr >> 8;
|
|
||||||
a[1] = regaddr & 0xff;
|
|
||||||
m[0].buf = a; m[1].buf = d;
|
|
||||||
if(ioctl(I2Cfd, I2C_RDWR, &x) < 0){
|
|
||||||
WARN("i2c_read_reg16, ioctl()");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
if(data) *data = (uint16_t)((d[0] << 8) | (d[1]));
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief i2c_write_reg16 - write 16-bit data value to 16-bit addressed register
|
|
||||||
* @param regaddr - address
|
|
||||||
* @param data - data to write
|
|
||||||
* @return state
|
|
||||||
*/
|
|
||||||
int i2c_write_reg16(uint16_t regaddr, uint16_t data){
|
|
||||||
if(I2Cfd < 1) return FALSE;
|
|
||||||
union i2c_smbus_data d;
|
|
||||||
d.block[0] = 3;
|
|
||||||
d.block[1] = regaddr & 0xff;
|
|
||||||
d.block[2] = data >> 8;
|
|
||||||
d.block[3] = data & 0xff;
|
|
||||||
struct i2c_smbus_ioctl_data args;
|
|
||||||
args.read_write = I2C_SMBUS_WRITE;
|
|
||||||
args.command = regaddr >> 8;
|
|
||||||
args.size = I2C_SMBUS_I2C_BLOCK_DATA;
|
|
||||||
args.data = &d;
|
|
||||||
if(ioctl(I2Cfd, I2C_SMBUS, &args) < 0){
|
|
||||||
WARN("i2c_write_reg16, ioctl()");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
/* printf("Block: ");
|
|
||||||
for(int i = 0; i < 4; ++i) printf("0x%02x ", d.block[i]);
|
|
||||||
printf("\n");*/
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief i2c_set_slave_address - set current slave address
|
|
||||||
* @param addr - address
|
|
||||||
* @return state
|
|
||||||
*/
|
|
||||||
int i2c_set_slave_address(uint8_t addr){
|
|
||||||
if(I2Cfd < 1) return FALSE;
|
|
||||||
if(ioctl(I2Cfd, I2C_SLAVE, addr) < 0){
|
|
||||||
WARN("i2c_set_slave_address, ioctl()");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
lastaddr = addr;
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief i2c_open - open I2C device
|
|
||||||
* @param path - full path to device
|
|
||||||
* @return state
|
|
||||||
*/
|
|
||||||
int i2c_open(const char *path){
|
|
||||||
if(I2Cfd > 0) close(I2Cfd);
|
|
||||||
I2Cfd = open(path, O_RDWR);
|
|
||||||
if(I2Cfd < 1){
|
|
||||||
WARN("i2c_open, open()");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
void i2c_close(){
|
|
||||||
if(I2Cfd > 0) close(I2Cfd);
|
|
||||||
}
|
|
||||||
|
|
||||||
#if 0
|
|
||||||
// Don't work :(
|
|
||||||
/**
|
|
||||||
* @brief read_regN8 - read up to I2C_SMBUS_BLOCK_MAX bytes from 8-bit addressed register
|
|
||||||
* @param regaddr - address
|
|
||||||
* @param data - data to read
|
|
||||||
* @param N - amount of bytes
|
|
||||||
* @return state
|
|
||||||
*/
|
|
||||||
static int read_regN8(uint8_t regaddr, uint8_t *data, uint16_t N){
|
|
||||||
if(I2Cfd < 1 || N > I2C_SMBUS_BLOCK_MAX || N == 0 || !data) return FALSE;
|
|
||||||
struct i2c_smbus_ioctl_data args = {0};
|
|
||||||
union i2c_smbus_data sd = {0};
|
|
||||||
sd.block[0] = N;
|
|
||||||
DBG("block: %d, %d, %d", sd.block[0], sd.block[1], sd.block[2]);
|
|
||||||
DBG("Try to get %d bytes from 0x%02x", N, regaddr);
|
|
||||||
args.read_write = I2C_SMBUS_READ;
|
|
||||||
args.command = regaddr;
|
|
||||||
args.size = I2C_SMBUS_BLOCK_DATA;
|
|
||||||
args.data = &sd;
|
|
||||||
if(ioctl(I2Cfd, I2C_SMBUS, &args) < 0){
|
|
||||||
WARN("read_regN8, ioctl()");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
DBG("block: %d, %d, %d", sd.block[0], sd.block[1], sd.block[2]);
|
|
||||||
memcpy(data, sd.block+1, N);
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief read_data16 - read data from 16-bit addressed register
|
|
||||||
* @param regaddr - address
|
|
||||||
* @param N - amount of bytes
|
|
||||||
* @param array - data read
|
|
||||||
* @return state
|
|
||||||
*/
|
|
||||||
int i2c_read_data16(uint16_t regaddr, uint16_t N, uint8_t *array){
|
|
||||||
if(I2Cfd < 1 || N == 0 || !array) return FALSE;
|
|
||||||
struct i2c_msg m[2];
|
|
||||||
struct i2c_rdwr_ioctl_data x = {.msgs = m, .nmsgs = 2};
|
|
||||||
m[0].addr = lastaddr; m[1].addr = lastaddr;
|
|
||||||
m[0].flags = 0;
|
|
||||||
m[1].flags = I2C_M_RD;
|
|
||||||
m[0].len = 2; m[1].len = N;
|
|
||||||
uint8_t a[2];
|
|
||||||
a[0] = regaddr >> 8;
|
|
||||||
a[1] = regaddr & 0xff;
|
|
||||||
m[0].buf = a; m[1].buf = array;
|
|
||||||
if(ioctl(I2Cfd, I2C_RDWR, &x) < 0){
|
|
||||||
WARN("i2c_read_data16, ioctl()");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @brief read_data8 - read data from 8-bit addressed register
|
|
||||||
* @param regaddr - address
|
|
||||||
* @param N - amount of bytes
|
|
||||||
* @param array - data read
|
|
||||||
* @return state
|
|
||||||
*/
|
|
||||||
int i2c_read_data8(uint8_t regaddr, uint16_t N, uint8_t *array){
|
|
||||||
if(I2Cfd < 1 || N < 1 || N+regaddr > 0xff || !array) return FALSE;
|
|
||||||
#if 0
|
|
||||||
uint16_t rest = N;
|
|
||||||
do{
|
|
||||||
uint8_t l = (rest > I2C_SMBUS_BLOCK_MAX) ? I2C_SMBUS_BLOCK_MAX : (uint8_t)rest;
|
|
||||||
if(!read_regN8(regaddr, array, l)){
|
|
||||||
DBG("can't read");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
rest -= l;
|
|
||||||
regaddr += l;
|
|
||||||
array += l;
|
|
||||||
}while(rest);
|
|
||||||
#endif
|
|
||||||
for(uint16_t i = 0; i < N; ++i){
|
|
||||||
if(!i2c_read_reg8((uint8_t)(regaddr+i), array++)){
|
|
||||||
DBG("can't read @%dth byte", i);
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
@ -1,40 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
|
|
||||||
#include <stdint.h>
|
|
||||||
|
|
||||||
#ifndef FALSE
|
|
||||||
#define FALSE 0
|
|
||||||
#endif
|
|
||||||
#ifndef TRUE
|
|
||||||
#define TRUE 1
|
|
||||||
#endif
|
|
||||||
|
|
||||||
int i2c_open(const char *path);
|
|
||||||
void i2c_close();
|
|
||||||
int i2c_set_slave_address(uint8_t addr);
|
|
||||||
int i2c_write_raw(uint8_t *data, int len);
|
|
||||||
int i2c_read_raw(uint8_t *data, int len);
|
|
||||||
int i2c_read_reg8(uint8_t regaddr, uint8_t *data);
|
|
||||||
int i2c_write_reg8(uint8_t regaddr, uint8_t data);
|
|
||||||
int i2c_read_data8(uint8_t regaddr, uint16_t N, uint8_t *array);
|
|
||||||
int i2c_read_reg16(uint16_t regaddr, uint16_t *data);
|
|
||||||
int i2c_write_reg16(uint16_t regaddr, uint16_t data);
|
|
||||||
int i2c_read_data16(uint16_t regaddr, uint16_t N, uint8_t *array);
|
|
||||||
|
|
||||||
@ -1,104 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
#include <usefull_macros.h>
|
|
||||||
|
|
||||||
#include "sensor.h"
|
|
||||||
|
|
||||||
typedef struct{
|
|
||||||
char *device;
|
|
||||||
char *sensor;
|
|
||||||
int slaveaddr;
|
|
||||||
int list;
|
|
||||||
int presmm; // pressure in mm instead of hPa
|
|
||||||
int help;
|
|
||||||
} glob_pars;
|
|
||||||
|
|
||||||
static glob_pars G = {
|
|
||||||
.device = "/dev/i2c-6",
|
|
||||||
};
|
|
||||||
|
|
||||||
static sl_option_t cmdlnopts[] = {
|
|
||||||
{"help", NO_ARGS, NULL, 'h', arg_int, APTR(&G.help), "show this help"},
|
|
||||||
{"device", NEED_ARG, NULL, 'd', arg_string, APTR(&G.device), "I2C device path"},
|
|
||||||
{"address", NEED_ARG, NULL, 'a', arg_int, APTR(&G.slaveaddr), "sensor's address (if not default)"},
|
|
||||||
{"sensor", NEED_ARG, NULL, 's', arg_string, APTR(&G.sensor), "sensor's name"},
|
|
||||||
{"list", NO_ARGS, NULL, 'l', arg_int, APTR(&G.list), "list all supported sensors"},
|
|
||||||
{"presmm", NO_ARGS, NULL, 'm', arg_int, APTR(&G.presmm), "pressure in mmHg instead of hPa"},
|
|
||||||
end_option
|
|
||||||
};
|
|
||||||
|
|
||||||
static int start(const sensor_t *s, uint8_t addr){
|
|
||||||
if(!sensor_init(s, addr)){
|
|
||||||
WARNX("Can't init sensor");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
if(!sensor_start(s)){
|
|
||||||
WARNX("Can't start measurements");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int printdata(const sensor_t *s){
|
|
||||||
sensor_data_t D;
|
|
||||||
if(!s->get_data(&D)){
|
|
||||||
WARNX("Can't read data, try again");
|
|
||||||
if(!sensor_start(s)) WARNX("Oops: can't start");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
sensor_props_t props = s->properties();
|
|
||||||
if(props.T) printf("T=%.2f\n", D.T);
|
|
||||||
if(props.H) printf("H=%.2f\n", D.H);
|
|
||||||
if(props.P){
|
|
||||||
if(G.presmm) D.P *= 0.750062;
|
|
||||||
printf("P=%.1f\n", D.P);
|
|
||||||
}
|
|
||||||
return TRUE;
|
|
||||||
}
|
|
||||||
|
|
||||||
int main(int argc, char **argv){
|
|
||||||
sl_init();
|
|
||||||
sl_parseargs(&argc, &argv, cmdlnopts);
|
|
||||||
if(G.help) sl_showhelp(-1, cmdlnopts);
|
|
||||||
if(G.list){
|
|
||||||
sensors_list();
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
if(!G.sensor) ERRX("Point sensor's name");
|
|
||||||
if(G.slaveaddr && (G.slaveaddr < 8 || G.slaveaddr > 0x77)) ERRX("I2C address should be 7-bit and not forbidden");
|
|
||||||
if(!sensors_open(G.device)) ERR("Can't open %s", G.device);
|
|
||||||
const sensor_t* s = sensor_find(G.sensor);
|
|
||||||
if(!s){ WARNX("Can't find sensor `%s` in supported list", G.sensor); goto clo; }
|
|
||||||
if(!start(s, G.slaveaddr)) goto clo;
|
|
||||||
while(1){
|
|
||||||
sensor_status_t status = s->process();
|
|
||||||
if(status == SENS_RDY){ // data ready - get it
|
|
||||||
if(!printdata(s)) continue;
|
|
||||||
break;
|
|
||||||
}else if(status == SENS_ERR){
|
|
||||||
WARNX("Error in measurement, try again");
|
|
||||||
if(!start(s, G.slaveaddr)) break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
clo:
|
|
||||||
sensors_close();
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
@ -1,85 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <usefull_macros.h>
|
|
||||||
|
|
||||||
#include "aht.h"
|
|
||||||
#include "BMP180.h"
|
|
||||||
#include "i2c.h"
|
|
||||||
#include "sensor.h"
|
|
||||||
|
|
||||||
// NULL-terminated list of all supported sensors
|
|
||||||
static const sensor_t* supported_sensors[] = {&AHT10, &BMP180, NULL};
|
|
||||||
|
|
||||||
// just two stupid wrappers
|
|
||||||
int sensors_open(const char *dev){
|
|
||||||
return i2c_open(dev);
|
|
||||||
}
|
|
||||||
void sensors_close(){
|
|
||||||
i2c_close();
|
|
||||||
}
|
|
||||||
|
|
||||||
// init sensor with optional new address
|
|
||||||
int sensor_init(const sensor_t *s, uint8_t address){
|
|
||||||
if(!s) return FALSE;
|
|
||||||
address = s->address(address);
|
|
||||||
if(!i2c_set_slave_address(address)){
|
|
||||||
DBG("Can't set slave address 0x%02x", address);
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
if(!i2c_read_reg8(0, NULL)){
|
|
||||||
DBG("Can't connect!");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
double t0 = sl_dtime();
|
|
||||||
int result = FALSE;
|
|
||||||
while(sl_dtime() - t0 < SENS_TIMEOUT && !(result = s->init())) usleep(10000);
|
|
||||||
return result;
|
|
||||||
}
|
|
||||||
|
|
||||||
// find supported sensor by name
|
|
||||||
const sensor_t* sensor_find(const char *name){
|
|
||||||
if(!name || !*name) return NULL;
|
|
||||||
const sensor_t **p = supported_sensors;
|
|
||||||
while(*p){
|
|
||||||
if(0 == strcmp((*p)->name, name)) return *p;
|
|
||||||
++p;
|
|
||||||
}
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
// list all supported sensors
|
|
||||||
void sensors_list(){
|
|
||||||
const sensor_t **p = supported_sensors;
|
|
||||||
green("Supported sensors:\n");
|
|
||||||
while(*p){
|
|
||||||
printf("%s", (*p)->name);
|
|
||||||
if(*(++p)) printf(", ");
|
|
||||||
}
|
|
||||||
printf("\n");
|
|
||||||
}
|
|
||||||
|
|
||||||
// wrapper with timeout
|
|
||||||
int sensor_start(const sensor_t *s){
|
|
||||||
if(!s) return FALSE;
|
|
||||||
double t0 = sl_dtime();
|
|
||||||
int result = FALSE;
|
|
||||||
while(sl_dtime() - t0 < SENS_TIMEOUT && !(result = s->start())) usleep(10000);
|
|
||||||
return result;
|
|
||||||
}
|
|
||||||
@ -1 +0,0 @@
|
|||||||
-std=c17
|
|
||||||
@ -1,2 +0,0 @@
|
|||||||
#define _XOPEN_SOURCE 9999
|
|
||||||
#define _POSIX_C_SOURCE 333333L
|
|
||||||
@ -1 +0,0 @@
|
|||||||
[General]
|
|
||||||
@ -1,218 +0,0 @@
|
|||||||
<?xml version="1.0" encoding="UTF-8"?>
|
|
||||||
<!DOCTYPE QtCreatorProject>
|
|
||||||
<!-- Written by QtCreator 17.0.2, 2025-10-11T01:16:49. -->
|
|
||||||
<qtcreator>
|
|
||||||
<data>
|
|
||||||
<variable>EnvironmentId</variable>
|
|
||||||
<value type="QByteArray">{7bd84e39-ca37-46d3-be9d-99ebea85bc0d}</value>
|
|
||||||
</data>
|
|
||||||
<data>
|
|
||||||
<variable>ProjectExplorer.Project.ActiveTarget</variable>
|
|
||||||
<value type="qlonglong">0</value>
|
|
||||||
</data>
|
|
||||||
<data>
|
|
||||||
<variable>ProjectExplorer.Project.EditorSettings</variable>
|
|
||||||
<valuemap type="QVariantMap">
|
|
||||||
<value type="bool" key="EditorConfiguration.AutoDetect">true</value>
|
|
||||||
<value type="bool" key="EditorConfiguration.AutoIndent">true</value>
|
|
||||||
<value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
|
|
||||||
<valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
|
|
||||||
<value type="QString" key="language">Cpp</value>
|
|
||||||
<valuemap type="QVariantMap" key="value">
|
|
||||||
<value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
|
|
||||||
</valuemap>
|
|
||||||
</valuemap>
|
|
||||||
<valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
|
|
||||||
<value type="QString" key="language">QmlJS</value>
|
|
||||||
<valuemap type="QVariantMap" key="value">
|
|
||||||
<value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
|
|
||||||
</valuemap>
|
|
||||||
</valuemap>
|
|
||||||
<value type="qlonglong" key="EditorConfiguration.CodeStyle.Count">2</value>
|
|
||||||
<value type="QByteArray" key="EditorConfiguration.Codec">KOI8-R</value>
|
|
||||||
<value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
|
|
||||||
<value type="int" key="EditorConfiguration.IndentSize">4</value>
|
|
||||||
<value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
|
|
||||||
<value type="int" key="EditorConfiguration.LineEndingBehavior">0</value>
|
|
||||||
<value type="int" key="EditorConfiguration.MarginColumn">80</value>
|
|
||||||
<value type="bool" key="EditorConfiguration.MouseHiding">true</value>
|
|
||||||
<value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
|
|
||||||
<value type="int" key="EditorConfiguration.PaddingMode">1</value>
|
|
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|
|
||||||
@ -1 +0,0 @@
|
|||||||
-std=c++17
|
|
||||||
@ -1,9 +0,0 @@
|
|||||||
BMP180.c
|
|
||||||
BMP180.h
|
|
||||||
aht.c
|
|
||||||
aht.h
|
|
||||||
i2c.c
|
|
||||||
i2c.h
|
|
||||||
main.c
|
|
||||||
sensor.c
|
|
||||||
sensor.h
|
|
||||||
|
Before Width: | Height: | Size: 67 B |
@ -1,61 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright 2025 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
|
||||||
*
|
|
||||||
* This program is free software: you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License as published by
|
|
||||||
* the Free Software Foundation, either version 3 of the License, or
|
|
||||||
* (at your option) any later version.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful,
|
|
||||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
||||||
* GNU General Public License for more details.
|
|
||||||
*
|
|
||||||
* You should have received a copy of the GNU General Public License
|
|
||||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#pragma once
|
|
||||||
|
|
||||||
#include <stdint.h>
|
|
||||||
|
|
||||||
// timeout of i2c waiting
|
|
||||||
#define SENS_TIMEOUT (2.)
|
|
||||||
|
|
||||||
typedef enum{
|
|
||||||
SENS_NOTINIT, // wasn't inited
|
|
||||||
SENS_BUSY, // measurement in progress
|
|
||||||
SENS_ERR, // error occured
|
|
||||||
SENS_RELAX, // do nothing
|
|
||||||
SENS_RDY, // data ready - can get it
|
|
||||||
} sensor_status_t;
|
|
||||||
|
|
||||||
typedef struct{
|
|
||||||
uint8_t T : 1; // can temperature (degC)
|
|
||||||
uint8_t H : 1; // can humidity (percent)
|
|
||||||
uint8_t P : 1; // can pressure (hPa)
|
|
||||||
} sensor_props_t;
|
|
||||||
|
|
||||||
typedef struct{
|
|
||||||
double T;
|
|
||||||
double H;
|
|
||||||
double P;
|
|
||||||
} sensor_data_t;
|
|
||||||
|
|
||||||
typedef struct{
|
|
||||||
const char *name; // name
|
|
||||||
uint32_t private; // private information (e.g. for almost similar sensors with some slight differences)
|
|
||||||
uint8_t (*address)(uint8_t new);// set/get sensor's address (get - if `new`==0)
|
|
||||||
int (*init)(); // init device - only @ start after POR
|
|
||||||
int (*start)(); // start measuring
|
|
||||||
sensor_status_t (*process)(); // main polling process
|
|
||||||
sensor_props_t (*properties)(); // get properties
|
|
||||||
int (*get_data)(sensor_data_t*);// read data
|
|
||||||
} sensor_t;
|
|
||||||
|
|
||||||
int sensors_open(const char *dev);
|
|
||||||
void sensors_close();
|
|
||||||
int sensor_init(const sensor_t *s, uint8_t address);
|
|
||||||
void sensors_list();
|
|
||||||
const sensor_t* sensor_find(const char *name);
|
|
||||||
int sensor_start(const sensor_t *s);
|
|
||||||
@ -1 +0,0 @@
|
|||||||
.
|
|
||||||
Loading…
x
Reference in New Issue
Block a user