1 /*
2 * Copyright (c) 2022 HiSilicon (Shanghai) Technologies CO., LIMITED.
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 <stdio.h>
17 #include <stdint.h>
18 #include <string.h>
19 #include <unistd.h>
20
21 #include "ohos_init.h"
22 #include "cmsis_os2.h"
23 #include "iot_i2c.h"
24 #include "iot_gpio.h"
25 #include "iot_errno.h"
26
27 #include "oled_ssd1306.h"
28
29 #define AHT20_BAUDRATE (400 * 1000)
30 #define AHT20_I2C_IDX 0
31
OledmentTask(const char * arg)32 static void OledmentTask(const char *arg)
33 {
34 (void)arg;
35 OledInit();
36 OledFillScreen(0);
37 IoTI2cInit(AHT20_I2C_IDX, AHT20_BAUDRATE);
38
39 OledShowString(20, 3, "Hello World", 1); /* 屏幕第20列3行显示1行 */
40 }
41
OledDemo(void)42 static void OledDemo(void)
43 {
44 osThreadAttr_t attr;
45 attr.name = "OledmentTask";
46 attr.attr_bits = 0U;
47 attr.cb_mem = NULL;
48 attr.cb_size = 0U;
49 attr.stack_mem = NULL;
50 attr.stack_size = 4096; /* 任务大小4096 */
51 attr.priority = osPriorityNormal;
52
53 if (osThreadNew(OledmentTask, NULL, &attr) == NULL) {
54 printf("[OledDemo] Failed to create OledmentTask!\n");
55 }
56 }
57
58 APP_FEATURE_INIT(OledDemo);