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hmtrp: python example for hmtrp Serial RF radio
Signed-off-by: Zion Orent <zorent@ics.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
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examples/python/hmtrp.py
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examples/python/hmtrp.py
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#!/usr/bin/python
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# Author: Zion Orent <zorent@ics.com>
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# Copyright (c) 2015 Intel Corporation.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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import time, sys, signal, atexit
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import pyupm_hmtrp as upmHmtrp
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# Instantiate a HMTRP radio device on uart 0
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my_HMTRP_Radio = upmHmtrp.HMTRP(0)
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## Exit handlers ##
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# This stops python from printing a stacktrace when you hit control-C
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def SIGINTHandler(signum, frame):
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raise SystemExit
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# This function lets you run code on exit,
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# including functions from my_HMTRP_Radio
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def exitHandler():
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print "Exiting"
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sys.exit(0)
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# Register exit handlers
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atexit.register(exitHandler)
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signal.signal(signal.SIGINT, SIGINTHandler)
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myCounter = 0
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# normal read/write mode
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bufferLength = 256
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radioBuffer = upmHmtrp.charArray(bufferLength)
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# make sure port is initialized properly. 9600 baud is the default.
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if (not my_HMTRP_Radio.setupTty(upmHmtrp.cvar.int_B9600)):
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print "Failed to setup tty port parameters"
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sys.exit(0)
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usageStr = ("Usage:\n"
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"Pass a commandline argument (any argument) to this program\n"
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"to query the radio configuration and output it. NOTE: the\n"
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"radio must be in CONFIG mode for this to work.\n\n"
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"Running this program without arguments will simply transmit\n"
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"'Hello World!' every second, and output any data received from\n"
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"another radio.\n\n")
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print usageStr
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'''
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By default, this radio simply transmits data sent via writeData()
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and reads any available data via readData().
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It can be placed into a configuration mode by grounding the
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CONFIG pin on the module. When this is done, the various
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configuration query and config methods can be used. In this
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example, by default, we just read any data available fom the
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device, and periodically transmit "Hello World".
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If any argument was specified on the command line, do a simple
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configuration query and output the results. The radio must be in
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CONFIG mode for this to work.
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Note that the first command-line argument should be "hmtry.py"
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The data we want would be the second... if it exists
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'''
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if (len(sys.argv) > 1):
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# config mode
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freq = upmHmtrp.uint32Array(0)
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dataRate = upmHmtrp.uint32Array(0)
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rxBandwidth = upmHmtrp.uint16Array(0)
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modulation = upmHmtrp.uint8Array(0)
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txPower = upmHmtrp.uint8Array(0)
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uartBaud = upmHmtrp.uint32Array(0)
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if (my_HMTRP_Radio.getConfig(freq, dataRate, rxBandwidth,
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modulation, txPower, uartBaud)):
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print "Radio configuration:"
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outputStr = ("freq: {0} dataRate: {1} "
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"rxBandwidth: {2}Khz").format(freq.__getitem__(0),
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dataRate.__getitem__(0),
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rxBandwidth.__getitem__(0))
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print outputStr
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outputStr = "modulation: %d Khz txPower: %d uartBaud: %d" % (
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modulation.__getitem__(0), txPower.__getitem__(0),
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uartBaud.__getitem__(0))
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print outputStr
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else:
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errString = ("getConfig() failed. Make sure the radio "
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"is in CONFIG mode.")
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print errString
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else:
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print "Running in normal read/write mode."
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while (1):
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# we don't want the read to block in this example, so always
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# check to see if data is available first.
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if (my_HMTRP_Radio.dataAvailable()):
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rv = my_HMTRP_Radio.readData(radioBuffer, bufferLength)
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if (rv > 0):
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resultStr = "";
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for x in range(rv):
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resultStr += radioBuffer.__getitem__(x)
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print "Received:", resultStr
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if (rv < 0): # some sort of read error occured
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print "Port read error."
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sys.exit(0)
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myCounter += 1
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# every second, transmit "Hello World"
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if (myCounter > 10):
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msg = "Hello World!"
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print "Transmitting %s..." % msg
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# Adding 1 for NULL terminator.
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# Note that SWIG automatically adds a NULL terminator,
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# so no need to NULL-terminate ourselves.
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# Just increment the message length to include
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# the NULL that's already there
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my_HMTRP_Radio.writeData(msg, (len(msg) + 1))
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myCounter = 0
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time.sleep(.1)
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%module pyupm_hmtrp
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%include "../upm.i"
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%include "../carrays_uint8_t.i"
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%include "../carrays_uint16_t.i"
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%include "../carrays_uint32_t.i"
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// Adding this typemap because SWIG is converting uint8, uint16, and uint32 into a short by default
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// This forces SWIG to convert it correctly
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%typemap(in) uint8_t * {
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void *argp = 0 ;
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int res = SWIG_ConvertPtr($input, &argp, SWIGTYPE_p_uint8Array, 0 | 0 );
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$1 = reinterpret_cast< uint8_t * >(argp);
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}
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%typemap(in) uint16_t * {
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void *argp = 0 ;
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int res = SWIG_ConvertPtr($input, &argp, SWIGTYPE_p_uint16Array, 0 | 0 );
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$1 = reinterpret_cast< uint16_t * >(argp);
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}
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%typemap(in) uint32_t * {
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void *argp = 0 ;
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int res = SWIG_ConvertPtr($input, &argp, SWIGTYPE_p_uint32Array, 0 | 0 );
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$1 = reinterpret_cast< uint32_t * >(argp);
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}
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%feature("autodoc", "3");
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%include "hmtrp.h"
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%{
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#include "hmtrp.h"
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speed_t int_B9600 = B9600;
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%}
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speed_t int_B9600 = B9600;
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%array_class(char, charArray);
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