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