6、修改sensor_renesas_hs300x.c为如下内容:
/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-11-03 flybreak the first version
*/
#include 《stdint.h》
#include 《stdlib.h》
#include “sensor_renesas_hs300x.h”
#define DBG_TAG “sensor.renesas.hs300x”
#define DBG_LVL DBG_INFO
#include 《rtdbg.h》
#define SENSOR_TEMP_RANGE_MAX (80)
#define SENSOR_TEMP_RANGE_MIN (-10)
#define SENSOR_HUMI_RANGE_MAX (100)
#define SENSOR_HUMI_RANGE_MIN (0)
/* Definitions of Mask Data for A/D data */
#define RM_HS300X_MASK_HUMIDITY_UPPER_0X3F (0x3F)
#define RM_HS300X_MASK_TEMPERATURE_LOWER_0XFC (0xFC)
#define RM_HS300X_MASK_STATUS_0XC0 (0xC0)
/* Definitions for Status Bits of A/D Data */
#define RM_HS300X_DATA_STATUS_VALID (0x00) // Status-bit: Valid data
/* Definitions for Calculation */
#define RM_HS300X_CALC_STATIC_VALUE (16383.0F)
#define RM_HS300X_CALC_HUMD_VALUE_100 (100.0F)
#define RM_HS300X_CALC_TEMP_C_VALUE_165 (165.0F)
#define RM_HS300X_CALC_TEMP_C_VALUE_40 (40.0F)
#define RM_HS300X_CALC_DECIMAL_VALUE_100 (100.0F)
struct hs300x_device
{
struct rt_i2c_bus_device *i2c;
uint8_t addr;
};
struct hs300x_device temp_humi_dev;
static rt_err_t _hs300x_init(struct rt_sensor_intf *intf)
{
temp_humi_dev.i2c = rt_i2c_bus_device_find(intf-》dev_name);
temp_humi_dev.addr = (uint8_t)intf-》user_data;
if (temp_humi_dev.i2c == RT_NULL)
{
return -RT_ERROR;
}
return RT_EOK;
}
int hs300x_read_data(struct hs300x_device* dev, float *humi_f, float *temp_f)
{
uint8_t r_buf[4] = {0};
uint16_t humi, temp;
float tmp_f = 0.0;
struct rt_i2c_msg msgs;
msgs.addr = dev-》addr;
msgs.flags = RT_I2C_WR;
msgs.buf = 0;
msgs.len = 0;
if (rt_i2c_transfer(dev-》i2c, &msgs, 1) != 1)
{
LOG_E(“mr error!n”);
return -1;
}
msgs.addr = dev-》addr;
msgs.flags = RT_I2C_RD;
msgs.buf = r_buf;
msgs.len = 4;
__retry:
if (rt_i2c_transfer(dev-》i2c, &msgs, 1) == 1)
{
LOG_D(“%x,%x,%x,%xn”, r_buf[0], r_buf[1], r_buf[2], r_buf[3]);
LOG_D(“state:%xn”, r_buf[0] & RM_HS300X_MASK_STATUS_0XC0);
if ((r_buf[0] & RM_HS300X_MASK_STATUS_0XC0) != RM_HS300X_DATA_STATUS_VALID)
{
rt_thread_mdelay(100);
goto __retry;
}
humi = (r_buf[0] & RM_HS300X_MASK_HUMIDITY_UPPER_0X3F) 《《 8 | r_buf[1];
temp = (r_buf[2] 《《 8 | (r_buf[3] & RM_HS300X_MASK_TEMPERATURE_LOWER_0XFC)) 》》 2;
tmp_f = (float)humi;
tmp_f = (tmp_f * RM_HS300X_CALC_HUMD_VALUE_100) / RM_HS300X_CALC_STATIC_VALUE;
if (humi_f)
{
*humi_f = tmp_f;
}
tmp_f = (float)temp;
tmp_f = ((tmp_f * RM_HS300X_CALC_TEMP_C_VALUE_165) / RM_HS300X_CALC_STATIC_VALUE) - RM_HS300X_CALC_TEMP_C_VALUE_40;
if (temp_f)
{
*temp_f = tmp_f;
}
return 0;
}
else {
LOG_E(“read error!n”);
return -1;
}
}
float hs300x_read_temperature(struct hs300x_device* dev)
{
float temp;
if (hs300x_read_data(dev, NULL, &temp) == 0)
{
return temp;
}
return 0;
}
float hs300x_read_humidity(struct hs300x_device* dev)
{
float humi;
if (hs300x_read_data(dev, &humi, NULL) == 0)
{
return humi;
}
return 0;
}
static rt_size_t _hs300x_polling_get_data(rt_sensor_t sensor, struct rt_sensor_data *data)
{
float temperature_x10, humidity_x10;
if (sensor-》info.type == RT_SENSOR_CLASS_TEMP)
{
temperature_x10 = 10 * hs300x_read_temperature(&temp_humi_dev);
data-》data.temp = (rt_int32_t)temperature_x10;
data-》timestamp = rt_sensor_get_ts();
}
else if (sensor-》info.type == RT_SENSOR_CLASS_HUMI)
{
humidity_x10 = 10 * hs300x_read_humidity(&temp_humi_dev);
data-》data.humi = (rt_int32_t)humidity_x10;
data-》timestamp = rt_sensor_get_ts();
}
return 1;
}
static rt_size_t hs300x_fetch_data(struct rt_sensor_device *sensor, void *buf, rt_size_t len)
{
RT_ASSERT(buf);
if (sensor-》config.mode == RT_SENSOR_MODE_POLLING)
{
return _hs300x_polling_get_data(sensor, buf);
}
else
return 0;
}
static rt_err_t hs300x_control(struct rt_sensor_device *sensor, int cmd, void *args)
{
rt_err_t result = RT_EOK;
return result;
}
static struct rt_sensor_ops sensor_ops =
{
hs300x_fetch_data,
hs300x_control
};
int rt_hw_hs300x_init(const char *name, struct rt_sensor_config *cfg)
{
rt_int8_t result;
rt_sensor_t sensor_temp = RT_NULL, sensor_humi = RT_NULL;
/* temperature sensor register */
sensor_temp = rt_calloc(1, sizeof(struct rt_sensor_device));
if (sensor_temp == RT_NULL)
return -1;
sensor_temp-》info.type = RT_SENSOR_CLASS_TEMP;
sensor_temp-》info.vendor = RT_SENSOR_VENDOR_UNKNOWN;
sensor_temp-》info.model = “hs300x”;
sensor_temp-》info.unit = RT_SENSOR_UNIT_DCELSIUS;
sensor_temp-》info.intf_type = RT_SENSOR_INTF_I2C;
sensor_temp-》info.range_max = SENSOR_TEMP_RANGE_MAX;
sensor_temp-》info.range_min = SENSOR_TEMP_RANGE_MIN;
sensor_temp-》info.period_min = 5;
rt_memcpy(&sensor_temp-》config, cfg, sizeof(struct rt_sensor_config));
sensor_temp-》ops = &sensor_ops;
result = rt_hw_sensor_register(sensor_temp, name, RT_DEVICE_FLAG_RDONLY, RT_NULL);
if (result != RT_EOK)
{
LOG_E(“device register err code: %d”, result);
goto __exit;
}
/* humidity sensor register */
sensor_humi = rt_calloc(1, sizeof(struct rt_sensor_device));
if (sensor_humi == RT_NULL)
return -1;
sensor_humi-》info.type = RT_SENSOR_CLASS_HUMI;
sensor_humi-》info.vendor = RT_SENSOR_VENDOR_UNKNOWN;
sensor_humi-》info.model = “hs300x”;
sensor_humi-》info.unit = RT_SENSOR_UNIT_PERMILLAGE;
sensor_humi-》info.intf_type = RT_SENSOR_INTF_I2C;
sensor_humi-》info.range_max = SENSOR_HUMI_RANGE_MAX;
sensor_humi-》info.range_min = SENSOR_HUMI_RANGE_MIN;
sensor_humi-》info.period_min = 5;
rt_memcpy(&sensor_humi-》config, cfg, sizeof(struct rt_sensor_config));
sensor_humi-》ops = &sensor_ops;
result = rt_hw_sensor_register(sensor_humi, name, RT_DEVICE_FLAG_RDONLY, RT_NULL);
if (result != RT_EOK)
{
LOG_E(“device register err code: %d”, result);
goto __exit;
}
_hs300x_init(&cfg-》intf);
return RT_EOK;
__exit:
if (sensor_temp)
rt_free(sensor_temp);
if (sensor_humi)
rt_free(sensor_humi);
return -RT_ERROR;
}
#define HS300X_I2C_BUS “i2c1”
int rt_hw_hs300x_port(void)
{
struct rt_sensor_config cfg;
cfg.intf.dev_name = HS300X_I2C_BUS;
cfg.intf.user_data = (void *)HS300X_I2C_ADDR;
rt_hw_hs300x_init(“hs300x”, &cfg);
return RT_EOK;
}
INIT_APP_EXPORT(rt_hw_hs300x_port);
6、修改hal_entry.c为如下内容:
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-10-10 Sherman first version
*/
#include 《rtthread.h》
#include “hal_data.h”
#include 《rtdevice.h》
#include “sensor_renesas_hs300x.h”
#define LED1_PIN “P502” /* Onboard LED pins */
#define USER_INPUT “P004”
extern struct hs300x_device temp_humi_dev;
void hal_entry(void)
{
float temp_f,humi_f;
rt_kprintf(“nHello RT-Thread!n”);
rt_uint32_t led1_pin = rt_pin_get(LED1_PIN);
while (1)
{
rt_pin_write(led1_pin, PIN_HIGH);
rt_thread_mdelay(500);
rt_pin_write(led1_pin, PIN_LOW);
rt_thread_mdelay(500);
hs300x_read_data(&temp_humi_dev, &humi_f, &temp_f);
rt_kprintf(“HUMI: %d.%2dn”, (int)humi_f, (int)(humi_f*100)%100);
rt_kprintf(“HUMI: %d.%2dn”, (int)temp_f, (int)(temp_f*100)%100);
}
}
void irq_callback_test(void *args)
{
rt_kprintf(“n IRQ03 triggered n”);
}
void icu_sample(void)
{
/* init */
rt_uint32_t pin = rt_pin_get(USER_INPUT);
rt_kprintf(“n pin number : 0x%04X n”, pin);
rt_err_t err = rt_pin_attach_irq(pin, PIN_IRQ_MODE_RISING, irq_callback_test, RT_NULL);
if (RT_EOK != err)
{
rt_kprintf(“n attach irq failed. n”);
}
err = rt_pin_irq_enable(pin, PIN_IRQ_ENABLE);
if (RT_EOK != err)
{
rt_kprintf(“n enable irq failed. n”);
}
}
MSH_CMD_EXPORT(icu_sample, icu sample);
实现效果为:
【小结】
这节主要是新建基础工程,并且添加hs3003的软件包。实现温度、湿度的采集。
原作者:Lu_盼盼