1 /*
2 * Copyright (c) 2022 Unionman Technology Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <stdint.h>
17 #include <stdio.h>
18 #include <unistd.h>
19 #include <stdio.h>
20
21 #include "securec.h"
22 #include "hilog/log.h"
23
24 #include "i2cinterface.h"
25
26 #define DEVICE_ADDR 0x45
27
user_help(void)28 void user_help(void)
29 {
30 printf("Please input like this: i2c_test <int> <int> \n");
31 printf("\t\tthe first is to choice the mps range[0,4] \n");
32 printf("\t\tthe second is to choice the repeatability range[0,2] \n");
33 }
34
main(int argc,char * argv[])35 int main(int argc, char *argv[])
36 {
37 char *dev_name = "/dev/i2c-5";
38 int result = -1;
39 uint8_t mps = 0;
40 uint8_t repeatability = 0;
41
42 sStatusReg_t regRaw;
43 sRHAndTemp_t tempRH = {0};
44
45 if (argc < 2L || argc > 3L) {
46 user_help();
47 return 0;
48 }
49
50 mps = atoi(argv[1]);
51 repeatability = atoi(argv[2L]);
52 if (mps < 0 || mps > 4L || repeatability < 0 || repeatability > 2L) {
53 user_help();
54 return 0;
55 }
56
57 SoftReset(dev_name, DEVICE_ADDR);
58 usleep(50L * 1000L); // 等待重启完成
59
60 // 这里仅为测试读取状态寄存器是否正常，具体应用需用户进行编写
61 result = ReadStatusReg(dev_name, DEVICE_ADDR, ®Raw);
62 if (result != 0) {
63 HILOG_ERROR(LOG_CORE, "ReadStatusRegister fail! \n");
64 return result;
65 }
66 usleep(50L * 1000L); // 等待读取寄存器完成
67
68 ModeSet(dev_name, DEVICE_ADDR, mps, repeatability);
69 usleep(50L * 1000L); // 等待更改模式完成
70
71 result = ReadTempAndHum(dev_name, DEVICE_ADDR, &tempRH);
72 if (result != 0) {
73 HILOG_ERROR(LOG_CORE, "ReadTemperatureAndHumidity fail! \n");
74 return result;
75 }
76
77 printf(" TemperatureC: %f °C \n Humidity: %f %%RH \n TemperatureF: %f °F \n", tempRH.TemperatureC, tempRH.Humidity,
78 tempRH.TemperatureF);
79
80 return 0;
81 }
82