diff --git a/examples/hdc1008_demo/Kconfig b/examples/hdc1008_demo/Kconfig new file mode 100644 index 000000000..fbf736f11 --- /dev/null +++ b/examples/hdc1008_demo/Kconfig @@ -0,0 +1,11 @@ +# +# For a description of the syntax of this configuration file, +# see the file kconfig-language.txt in the NuttX tools repository. +# + +config EXAMPLES_HDC1008 + tristate "HDC1008 driver example" + default n + ---help--- + Enable the example application + diff --git a/examples/hdc1008_demo/Make.defs b/examples/hdc1008_demo/Make.defs new file mode 100644 index 000000000..fa1dd8e8a --- /dev/null +++ b/examples/hdc1008_demo/Make.defs @@ -0,0 +1,23 @@ +############################################################################ +# apps/examples/hdc1008_demo/Make.defs +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. The +# ASF licenses this file to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance with the +# License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. +# +############################################################################/ + +ifneq ($(CONFIG_EXAMPLES_HDC1008),) +CONFIGURED_APPS += $(APPDIR)/examples/hdc1008_demo +endif diff --git a/examples/hdc1008_demo/Makefile b/examples/hdc1008_demo/Makefile new file mode 100644 index 000000000..1921ca6b5 --- /dev/null +++ b/examples/hdc1008_demo/Makefile @@ -0,0 +1,32 @@ +############################################################################ +# apps/examples/hdc1008_demo/Makefile +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. The +# ASF licenses this file to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance with the +# License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. +# +############################################################################/ + +-include $(TOPDIR)/Make.defs + +# hdc1008 example built-in application info + +PROGNAME = hdc1008 +PRIORITY = SCHED_PRIORITY_DEFAULT +STACKSIZE = $(CONFIG_DEFAULT_TASK_STACKSIZE) +MODULE = $(CONFIG_EXAMPLES_HDC1008) + +MAINSRC = hdc1008_main.c + +include $(APPDIR)/Application.mk diff --git a/examples/hdc1008_demo/hdc1008_main.c b/examples/hdc1008_demo/hdc1008_main.c new file mode 100644 index 000000000..e6694665b --- /dev/null +++ b/examples/hdc1008_demo/hdc1008_main.c @@ -0,0 +1,169 @@ +/**************************************************************************** + * examples/hdc1008_demo/hdc1008_main.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +#include +#include +#include + +#include +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define DEV_PATH "/dev/hdc1008" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * hdc1008_main + ****************************************************************************/ + +int main(int argc, FAR char *argv[]) +{ + struct hdc1008_conv_data_s data; + int fd; + int ret; + int i; + uint8_t res[3]; + char buf[16]; + + /* Available resolutions: 8/11/14 bits */ + + res[0] = 8; + res[1] = 11; + res[2] = 14; + + fd = open(DEV_PATH, O_RDONLY); + if (fd < 0) + { + printf("Failed to open device driver at '%s'\n", DEV_PATH); + } + + /* Read both t and rh */ + + ret = read(fd, buf, sizeof(buf)); + if (ret < 0) + { + printf("FAILED to read temperature and rh: %d\n", errno); + goto out; + } + + printf("Temperature and humidity\n" + "========================\n"); + printf("data=%s%d\n\n", buf); + + /* Measure using ioctl */ + + ret = ioctl(fd, SNIOC_MEASURE, (unsigned long)&data); + if (ret < 0) + { + printf("Failed to measure using ioctl: %d\n", errno); + goto out; + } + + printf("Temperature and humidity (ioctl)\n" + "================================\n"); + printf("t=%d.%d, h=%d.%d\n\n", + data.temperature / 100, data.temperature % 100, + data.humidity / 10, data.humidity % 10); + + /* Enable heater */ + + ret = ioctl(fd, SNIOC_SET_HEATER_MODE, 1); + if (ret < 0) + { + printf("Failed to enable heater: %d\n", errno); + goto out; + } + + /* Read only t */ + + ret = ioctl(fd, SNIOC_SET_OPERATIONAL_MODE, HDC1008_MEAS_TEMPERATURE); + if (ret < 0) + { + printf("Failed to set temperature measurement only: %d\n", errno); + goto out; + } + + for (i = 1; i < 3; ++i) + { + ret = ioctl(fd, SNIOC_SET_RESOLUTION_T, res[i]); + if (ret < 0) + { + printf("Failed to set temperature resolution: %d\n", errno); + goto out; + } + + ret = read(fd, buf, sizeof(buf)); + printf("Temperature, %d bit resolution\n" + "==============================\n", res[i]); + printf("data=%s\n\n", buf); + } + + /* Disable heater */ + + ret = ioctl(fd, SNIOC_SET_HEATER_MODE, 0); + if (ret < 0) + { + printf("Failed to disable heater: %d\n", errno); + goto out; + } + + /* Read only rh */ + + ret = ioctl(fd, SNIOC_SET_OPERATIONAL_MODE, HDC1008_MEAS_HUMIDITY); + if (ret < 0) + { + printf("Failed to set humidity measurement only: %d\n", errno); + goto out; + } + + for (i = 0; i < 3; ++i) + { + ret = ioctl(fd, SNIOC_SET_RESOLUTION_RH, res[i]); + if (ret < 0) + { + printf("Failed to set humidity resolution: %d\n", errno); + goto out; + } + + ret = read(fd, buf, sizeof(buf)); + printf("Humidity, %d bit resolution\n" + "===========\n", res[i]); + printf("data=%s\n\n", buf); + } + + ret = 0; + +out: + close(fd); + return ret; +}