mirror of
https://github.com/PX4/PX4-Autopilot.git
synced 2026-09-27 17:10:00 +08:00
Completes coding of the PWM module
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4200 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
@@ -0,0 +1,105 @@
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############################################################################
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# apps/examples/touchscreen/Makefile
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#
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# Copyright (C) 2011 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name NuttX nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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############################################################################
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-include $(TOPDIR)/.config
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-include $(TOPDIR)/Make.defs
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include $(APPDIR)/Make.defs
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# NuttX NX Graphics Example.
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ASRCS =
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CSRCS = adc_main.c
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AOBJS = $(ASRCS:.S=$(OBJEXT))
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COBJS = $(CSRCS:.c=$(OBJEXT))
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SRCS = $(ASRCS) $(CSRCS)
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OBJS = $(AOBJS) $(COBJS)
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ifeq ($(WINTOOL),y)
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BIN = "${shell cygpath -w $(APPDIR)/libapps$(LIBEXT)}"
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else
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BIN = "$(APPDIR)/libapps$(LIBEXT)"
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endif
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ROOTDEPPATH = --dep-path .
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# Touchscreen built-in application info
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APPNAME = adc
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PRIORITY = SCHED_PRIORITY_DEFAULT
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STACKSIZE = 2048
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# Common build
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VPATH =
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all: .built
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.PHONY: context clean depend distclean
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$(AOBJS): %$(OBJEXT): %.S
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$(call ASSEMBLE, $<, $@)
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$(COBJS): %$(OBJEXT): %.c
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$(call COMPILE, $<, $@)
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.built: $(OBJS)
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@( for obj in $(OBJS) ; do \
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$(call ARCHIVE, $(BIN), $${obj}); \
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done ; )
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@touch .built
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.context:
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ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
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$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
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@touch $@
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endif
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context: .context
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.depend: Makefile $(SRCS)
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@$(MKDEP) $(ROOTDEPPATH) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
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@touch $@
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depend: .depend
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clean:
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@rm -f *.o *~ .*.swp .built
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$(call CLEAN)
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distclean: clean
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@rm -f Make.dep .depend
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-include Make.dep
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Executable
+116
@@ -0,0 +1,116 @@
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/****************************************************************************
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* examples/examples/adc.h
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __APPS_EXAMPLES_ADC_ADC_H
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#define __APPS_EXAMPLES_ADC_ADC_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* CONFIG_NSH_BUILTIN_APPS - Build the ADC test as an NSH built-in function.
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* Default: Built as a standalone problem
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* CONFIG_EXAMPLES_ADC_DEVPATH - The path to the ADC device. Default: /dev/adc0
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* CONFIG_EXAMPLES_ADC_NSAMPLES - If CONFIG_NSH_BUILTIN_APPS
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* is defined, then the number of samples is provided on the command line
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* and this value is ignored. Otherwise, this number of samples is
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* collected and the program terminates. Default: Samples are collected
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* indefinitely.
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* CONFIG_EXAMPLES_ADC_GROUPSIZE - The number of samples to read at once.
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* Default: 4
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*/
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#ifndef CONFIG_ADC
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# error "ADC device support is not enabled (CONFIG_ADC)"
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#endif
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#ifndef CONFIG_EXAMPLES_ADC_DEVPATH
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# define CONFIG_EXAMPLES_ADC_DEVPATH "/dev/adc0"
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#endif
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#ifndef CONFIG_EXAMPLES_ADC_GROUPSIZE
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# define CONFIG_EXAMPLES_ADC_GROUPSIZE 4
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#endif
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/* Debug ********************************************************************/
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#ifdef CONFIG_CPP_HAVE_VARARGS
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# ifdef CONFIG_DEBUG
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# define message(...) lib_rawprintf(__VA_ARGS__)
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# define msgflush()
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# else
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# define message(...) printf(__VA_ARGS__)
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# define msgflush() fflush(stdout)
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# endif
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#else
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# ifdef CONFIG_DEBUG
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# define message lib_rawprintf
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# define msgflush()
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# else
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# define message printf
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# define msgflush() fflush(stdout)
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# endif
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Variables
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: adc_devinit()
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*
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* Description:
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* Perform architecuture-specific initialization of the ADC hardware. This
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* interface must be provided by all configurations using apps/examples/adc
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*
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****************************************************************************/
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int adc_devinit(void);
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#endif /* __APPS_EXAMPLES_ADC_ADC_H */
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@@ -0,0 +1,215 @@
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/****************************************************************************
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* examples/adc/adc_main.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/analog/adc.h>
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#include "adc.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifdef CONFIG_NSH_BUILTIN_APPS
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# define MAIN_NAME adc_main
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# define MAIN_STRING "adc_main: "
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#else
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# define MAIN_NAME user_start
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# define MAIN_STRING "user_start: "
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: user_start/adc_main
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****************************************************************************/
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int MAIN_NAME(int argc, char *argv[])
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{
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struct adc_msg_s sample[CONFIG_EXAMPLES_ADC_GROUPSIZE];
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size_t readsize;
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ssize_t nbytes;
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#if defined(CONFIG_NSH_BUILTIN_APPS) || defined(CONFIG_EXAMPLES_ADC_NSAMPLES)
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long nsamples;
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#endif
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int fd;
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int errval = 0;
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int ret;
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int i;
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/* If this example is configured as an NX add-on, then limit the number of
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* samples that we collect before returning. Otherwise, we never return
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*/
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#if defined(CONFIG_NSH_BUILTIN_APPS)
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nsamples = 1;
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if (argc > 1)
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{
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nsamples = strtol(argv[1], NULL, 10);
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}
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message(MAIN_STRING "nsamples: %d\n", nsamples);
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#elif defined(CONFIG_EXAMPLES_ADC_NSAMPLES)
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message(MAIN_STRING "nsamples: %d\n", CONFIG_EXAMPLES_ADC_NSAMPLES);
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#endif
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/* Initialization of the ADC hardware is performed by logic external to
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* this test.
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*/
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message(MAIN_STRING "Initializing external ADC device\n");
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ret = adc_devinit();
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if (ret != OK)
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{
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message(MAIN_STRING "adc_devinit failed: %d\n", ret);
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errval = 1;
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goto errout;
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}
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message(MAIN_STRING "Hardware initialized. Opening the ADC device\n");
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/* Open the ADC device for reading */
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fd = open(CONFIG_EXAMPLES_ADC_DEVPATH, O_RDONLY);
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if (fd < 0)
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{
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message(MAIN_STRING "open %s failed: %d\n",
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CONFIG_EXAMPLES_ADC_DEVPATH, errno);
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errval = 2;
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goto errout_with_dev;
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}
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/* Now loop the appropriate number of times, displaying the collected
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* ADC samples.
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*/
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message(MAIN_STRING "Entering the main loop\n");
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#if defined(CONFIG_NSH_BUILTIN_APPS)
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for (; nsamples > 0; nsamples--)
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#elif defined(CONFIG_EXAMPLES_ADC_NSAMPLES)
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for (nsamples = 0; nsamples < CONFIG_EXAMPLES_ADC_NSAMPLES; nsamples++)
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#else
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for (;;)
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#endif
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{
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/* Flush any output before the loop entered or from the previous pass
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* through the loop.
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*/
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msgflush();
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/* Read CONFIG_EXAMPLES_ADC_GROUPSIZE samples */
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readsize = CONFIG_EXAMPLES_ADC_GROUPSIZE * sizeof(struct adc_msg_s);
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nbytes = read(fd, sample, readsize);
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message("Bytes read: %d\n", nbytes);
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/* Handle unexpected return values */
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if (nbytes < 0)
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{
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errval = errno;
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if (errval != EINTR)
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{
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message(MAIN_STRING "read %s failed: %d\n",
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CONFIG_EXAMPLES_ADC_DEVPATH, errval);
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errval = 3;
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goto errout_with_dev;
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}
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message(MAIN_STRING "Interrupted read...\n");
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}
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else if (nbytes != readsize)
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{
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message(MAIN_STRING "Unexpected read size=%d, expected=%d, Ignoring\n",
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nbytes, readsize);
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}
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/* Print the sample data on successful return */
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else
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{
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message("Sample :\n");
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for (i = 0; i < CONFIG_EXAMPLES_ADC_GROUPSIZE; i++)
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{
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message("%d: channel: %d value: %d\n",
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i, sample[i].am_channel, sample[i].am_data);
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}
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}
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}
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errout_with_dev:
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close(fd);
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errout:
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message("Terminating!\n");
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msgflush();
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return errval;
|
||||
}
|
||||
Reference in New Issue
Block a user