EL4121 Embedded System / mbed-os

mbed-os

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tools/host_tests/mbedrpc.py@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

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be_bryan 0:b74591d5ab33 1 # mbedRPC.py - mbed RPC interface for Python
be_bryan 0:b74591d5ab33 2 #
be_bryan 0:b74591d5ab33 3 ##Copyright (c) 2010 ARM Ltd
be_bryan 0:b74591d5ab33 4 ##
be_bryan 0:b74591d5ab33 5 ##Permission is hereby granted, free of charge, to any person obtaining a copy
be_bryan 0:b74591d5ab33 6 ##of this software and associated documentation files (the "Software"), to deal
be_bryan 0:b74591d5ab33 7 ##in the Software without restriction, including without limitation the rights
be_bryan 0:b74591d5ab33 8 ##to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
be_bryan 0:b74591d5ab33 9 ##copies of the Software, and to permit persons to whom the Software is
be_bryan 0:b74591d5ab33 10 ##furnished to do so, subject to the following conditions:
be_bryan 0:b74591d5ab33 11 ##
be_bryan 0:b74591d5ab33 12 ##The above copyright notice and this permission notice shall be included in
be_bryan 0:b74591d5ab33 13 ##all copies or substantial portions of the Software.
be_bryan 0:b74591d5ab33 14 ##
be_bryan 0:b74591d5ab33 15 ##THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
be_bryan 0:b74591d5ab33 16 ##IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
be_bryan 0:b74591d5ab33 17 ##FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
be_bryan 0:b74591d5ab33 18 ##AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
be_bryan 0:b74591d5ab33 19 ##LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
be_bryan 0:b74591d5ab33 20 ##OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
be_bryan 0:b74591d5ab33 21 ##THE SOFTWARE.
be_bryan 0:b74591d5ab33 22 #
be_bryan 0:b74591d5ab33 23 # Example:
be_bryan 0:b74591d5ab33 24 # >from mbedRPC import*
be_bryan 0:b74591d5ab33 25 # >mbed = SerialRPC("COM5",9600)
be_bryan 0:b74591d5ab33 26 # >myled = DigitalOut(mbed,"myled") <--- Where the text in quotations matches your RPC pin definition's second parameter, in this case it could be RpcDigitalOut myled(LED1,"myled");
be_bryan 0:b74591d5ab33 27 # >myled.write(1)
be_bryan 0:b74591d5ab33 28 # >
be_bryan 0:b74591d5ab33 29
be_bryan 0:b74591d5ab33 30 import serial, urllib2, time
be_bryan 0:b74591d5ab33 31
be_bryan 0:b74591d5ab33 32 # mbed super class
be_bryan 0:b74591d5ab33 33 class mbed:
be_bryan 0:b74591d5ab33 34 def __init__(self):
be_bryan 0:b74591d5ab33 35 print("This will work as a demo but no transport mechanism has been selected")
be_bryan 0:b74591d5ab33 36
be_bryan 0:b74591d5ab33 37 def rpc(self, name, method, args):
be_bryan 0:b74591d5ab33 38 print("Superclass method not overridden")
be_bryan 0:b74591d5ab33 39
be_bryan 0:b74591d5ab33 40
be_bryan 0:b74591d5ab33 41 # Transport mechanisms, derived from mbed
be_bryan 0:b74591d5ab33 42 class SerialRPC(mbed):
be_bryan 0:b74591d5ab33 43 def __init__(self, port, baud):
be_bryan 0:b74591d5ab33 44 self.ser = serial.Serial(port)
be_bryan 0:b74591d5ab33 45 self.ser.setBaudrate(baud)
be_bryan 0:b74591d5ab33 46
be_bryan 0:b74591d5ab33 47 def rpc(self, name, method, args):
be_bryan 0:b74591d5ab33 48 # creates the command to be sent serially - /name/method arg1 arg2 arg3 ... argN
be_bryan 0:b74591d5ab33 49 str = "/" + name + "/" + method + " " + " ".join(args) + "\n"
be_bryan 0:b74591d5ab33 50 # prints the command being executed
be_bryan 0:b74591d5ab33 51 print str
be_bryan 0:b74591d5ab33 52 # writes the command to serial
be_bryan 0:b74591d5ab33 53 self.ser.write(str)
be_bryan 0:b74591d5ab33 54 # strips trailing characters from the line just written
be_bryan 0:b74591d5ab33 55 ret_val = self.ser.readline().strip()
be_bryan 0:b74591d5ab33 56 return ret_val
be_bryan 0:b74591d5ab33 57
be_bryan 0:b74591d5ab33 58
be_bryan 0:b74591d5ab33 59 class HTTPRPC(mbed):
be_bryan 0:b74591d5ab33 60 def __init__(self, ip):
be_bryan 0:b74591d5ab33 61 self.host = "http://" + ip
be_bryan 0:b74591d5ab33 62
be_bryan 0:b74591d5ab33 63 def rpc(self, name, method, args):
be_bryan 0:b74591d5ab33 64 response = urllib2.urlopen(self.host + "/rpc/" + name + "/" + method + "%20" + "%20".join(args))
be_bryan 0:b74591d5ab33 65 return response.read().strip()
be_bryan 0:b74591d5ab33 66
be_bryan 0:b74591d5ab33 67
be_bryan 0:b74591d5ab33 68 # generic mbed interface super class
be_bryan 0:b74591d5ab33 69 class mbed_interface():
be_bryan 0:b74591d5ab33 70 # initialize an mbed interface with a transport mechanism and pin name
be_bryan 0:b74591d5ab33 71 def __init__(self, this_mbed, mpin):
be_bryan 0:b74591d5ab33 72 self.mbed = this_mbed
be_bryan 0:b74591d5ab33 73 if isinstance(mpin, str):
be_bryan 0:b74591d5ab33 74 self.name = mpin
be_bryan 0:b74591d5ab33 75
be_bryan 0:b74591d5ab33 76 def __del__(self):
be_bryan 0:b74591d5ab33 77 r = self.mbed.rpc(self.name, "delete", [])
be_bryan 0:b74591d5ab33 78
be_bryan 0:b74591d5ab33 79 def new(self, class_name, name, pin1, pin2 = "", pin3 = ""):
be_bryan 0:b74591d5ab33 80 args = [arg for arg in [pin1,pin2,pin3,name] if arg != ""]
be_bryan 0:b74591d5ab33 81 r = self.mbed.rpc(class_name, "new", args)
be_bryan 0:b74591d5ab33 82
be_bryan 0:b74591d5ab33 83 # generic read
be_bryan 0:b74591d5ab33 84 def read(self):
be_bryan 0:b74591d5ab33 85 r = self.mbed.rpc(self.name, "read", [])
be_bryan 0:b74591d5ab33 86 return int(r)
be_bryan 0:b74591d5ab33 87
be_bryan 0:b74591d5ab33 88
be_bryan 0:b74591d5ab33 89 # for classes that need write functionality - inherits from the generic reading interface
be_bryan 0:b74591d5ab33 90 class mbed_interface_write(mbed_interface):
be_bryan 0:b74591d5ab33 91 def __init__(self, this_mbed, mpin):
be_bryan 0:b74591d5ab33 92 mbed_interface.__init__(self, this_mbed, mpin)
be_bryan 0:b74591d5ab33 93
be_bryan 0:b74591d5ab33 94 # generic write
be_bryan 0:b74591d5ab33 95 def write(self, value):
be_bryan 0:b74591d5ab33 96 r = self.mbed.rpc(self.name, "write", [str(value)])
be_bryan 0:b74591d5ab33 97
be_bryan 0:b74591d5ab33 98
be_bryan 0:b74591d5ab33 99 # mbed interfaces
be_bryan 0:b74591d5ab33 100 class DigitalOut(mbed_interface_write):
be_bryan 0:b74591d5ab33 101 def __init__(self, this_mbed, mpin):
be_bryan 0:b74591d5ab33 102 mbed_interface_write.__init__(self, this_mbed, mpin)
be_bryan 0:b74591d5ab33 103
be_bryan 0:b74591d5ab33 104
be_bryan 0:b74591d5ab33 105 class AnalogIn(mbed_interface):
be_bryan 0:b74591d5ab33 106 def __init__(self, this_mbed, mpin):
be_bryan 0:b74591d5ab33 107 mbed_interface.__init__(self, this_mbed, mpin)
be_bryan 0:b74591d5ab33 108
be_bryan 0:b74591d5ab33 109 def read_u16(self):
be_bryan 0:b74591d5ab33 110 r = self.mbed.rpc(self.name, "read_u16", [])
be_bryan 0:b74591d5ab33 111 return int(r)
be_bryan 0:b74591d5ab33 112
be_bryan 0:b74591d5ab33 113
be_bryan 0:b74591d5ab33 114 class AnalogOut(mbed_interface_write):
be_bryan 0:b74591d5ab33 115 def __init__(self, this_mbed, mpin):
be_bryan 0:b74591d5ab33 116 mbed_interface_write.__init__(self, this_mbed, mpin)
be_bryan 0:b74591d5ab33 117
be_bryan 0:b74591d5ab33 118 def write_u16(self, value):
be_bryan 0:b74591d5ab33 119 self.mbed.rpc(self.name, "write_u16", [str(value)])
be_bryan 0:b74591d5ab33 120
be_bryan 0:b74591d5ab33 121 def read(self):
be_bryan 0:b74591d5ab33 122 r = self.mbed.rpc(self.name, "read", [])
be_bryan 0:b74591d5ab33 123 return float(r)
be_bryan 0:b74591d5ab33 124
be_bryan 0:b74591d5ab33 125
be_bryan 0:b74591d5ab33 126 class DigitalIn(mbed_interface):
be_bryan 0:b74591d5ab33 127 def __init__(self, this_mbed, mpin):
be_bryan 0:b74591d5ab33 128 mbed_interface.__init__(self, this_mbed, mpin)
be_bryan 0:b74591d5ab33 129
be_bryan 0:b74591d5ab33 130
be_bryan 0:b74591d5ab33 131 class PwmOut(mbed_interface_write):
be_bryan 0:b74591d5ab33 132 def __init__(self, this_mbed, mpin):
be_bryan 0:b74591d5ab33 133 mbed_interface_write.__init__(self, this_mbed, mpin)
be_bryan 0:b74591d5ab33 134
be_bryan 0:b74591d5ab33 135 def read(self):
be_bryan 0:b74591d5ab33 136 r = self.mbed.rpc(self.name, "read", [])
be_bryan 0:b74591d5ab33 137 return r
be_bryan 0:b74591d5ab33 138
be_bryan 0:b74591d5ab33 139 def period(self, value):
be_bryan 0:b74591d5ab33 140 self.mbed.rpc(self.name, "period", [str(value)])
be_bryan 0:b74591d5ab33 141
be_bryan 0:b74591d5ab33 142 def period_ms(self, value):
be_bryan 0:b74591d5ab33 143 self.mbed.rpc(self.name, "period_ms", [str(value)])
be_bryan 0:b74591d5ab33 144
be_bryan 0:b74591d5ab33 145 def period_us(self, value):
be_bryan 0:b74591d5ab33 146 self.mbed.rpc(self.name, "period_us", [str(value)])
be_bryan 0:b74591d5ab33 147
be_bryan 0:b74591d5ab33 148 def pulsewidth(self, value):
be_bryan 0:b74591d5ab33 149 self.mbed.rpc(self.name, "pulsewidth", [str(value)])
be_bryan 0:b74591d5ab33 150
be_bryan 0:b74591d5ab33 151 def pulsewidth_ms(self, value):
be_bryan 0:b74591d5ab33 152 self.mbed.rpc(self.name, "pulsewidth_ms", [str(value)])
be_bryan 0:b74591d5ab33 153
be_bryan 0:b74591d5ab33 154 def pulsewidth_us(self, value):
be_bryan 0:b74591d5ab33 155 self.mbed.rpc(self.name, "pulsewidth_us", [str(value)])
be_bryan 0:b74591d5ab33 156
be_bryan 0:b74591d5ab33 157
be_bryan 0:b74591d5ab33 158 class RPCFunction(mbed_interface):
be_bryan 0:b74591d5ab33 159 def __init__(self, this_mbed, name):
be_bryan 0:b74591d5ab33 160 mbed_interface.__init__(self, this_mbed, name)
be_bryan 0:b74591d5ab33 161
be_bryan 0:b74591d5ab33 162 def run(self, input):
be_bryan 0:b74591d5ab33 163 r = self.mbed.rpc(self.name, "run", [input])
be_bryan 0:b74591d5ab33 164 return r
be_bryan 0:b74591d5ab33 165
be_bryan 0:b74591d5ab33 166
be_bryan 0:b74591d5ab33 167 class RPCVariable(mbed_interface_write):
be_bryan 0:b74591d5ab33 168 def __init__(self, this_mbed, name):
be_bryan 0:b74591d5ab33 169 mbed_interface_write.__init__(self, this_mbed, name)
be_bryan 0:b74591d5ab33 170
be_bryan 0:b74591d5ab33 171 def read(self):
be_bryan 0:b74591d5ab33 172 r = self.mbed.rpc(self.name, "read", [])
be_bryan 0:b74591d5ab33 173 return r
be_bryan 0:b74591d5ab33 174
be_bryan 0:b74591d5ab33 175 class Timer(mbed_interface):
be_bryan 0:b74591d5ab33 176 def __init__(self, this_mbed, name):
be_bryan 0:b74591d5ab33 177 mbed_interface.__init__(self, this_mbed, name)
be_bryan 0:b74591d5ab33 178
be_bryan 0:b74591d5ab33 179 def start(self):
be_bryan 0:b74591d5ab33 180 r = self.mbed.rpc(self.name, "start", [])
be_bryan 0:b74591d5ab33 181
be_bryan 0:b74591d5ab33 182 def stop(self):
be_bryan 0:b74591d5ab33 183 r = self.mbed.rpc(self.name, "stop", [])
be_bryan 0:b74591d5ab33 184
be_bryan 0:b74591d5ab33 185 def reset(self):
be_bryan 0:b74591d5ab33 186 r = self.mbed.rpc(self.name, "reset", [])
be_bryan 0:b74591d5ab33 187
be_bryan 0:b74591d5ab33 188 def read(self):
be_bryan 0:b74591d5ab33 189 r = self.mbed.rpc(self.name, "read", [])
be_bryan 0:b74591d5ab33 190 return float(re.search('\d+\.*\d*', r).group(0))
be_bryan 0:b74591d5ab33 191
be_bryan 0:b74591d5ab33 192 def read_ms(self):
be_bryan 0:b74591d5ab33 193 r = self.mbed.rpc(self.name, "read_ms", [])
be_bryan 0:b74591d5ab33 194 return float(re.search('\d+\.*\d*', r).group(0))
be_bryan 0:b74591d5ab33 195
be_bryan 0:b74591d5ab33 196 def read_us(self):
be_bryan 0:b74591d5ab33 197 r = self.mbed.rpc(self.name, "read_us", [])
be_bryan 0:b74591d5ab33 198 return float(re.search('\d+\.*\d*', r).group(0))
be_bryan 0:b74591d5ab33 199
be_bryan 0:b74591d5ab33 200 # Serial
be_bryan 0:b74591d5ab33 201 class Serial():
be_bryan 0:b74591d5ab33 202 def __init__(self, this_mbed, tx, rx=""):
be_bryan 0:b74591d5ab33 203 self.mbed = this_mbed
be_bryan 0:b74591d5ab33 204 if isinstance(tx, str):
be_bryan 0:b74591d5ab33 205 self.name = tx
be_bryan 0:b74591d5ab33 206
be_bryan 0:b74591d5ab33 207 def __del__(self):
be_bryan 0:b74591d5ab33 208 r = self.mbed.rpc(self.name, "delete", [])
be_bryan 0:b74591d5ab33 209
be_bryan 0:b74591d5ab33 210 def baud(self, value):
be_bryan 0:b74591d5ab33 211 r = self.mbed.rpc(self.name, "baud", [str(value)])
be_bryan 0:b74591d5ab33 212
be_bryan 0:b74591d5ab33 213 def putc(self, value):
be_bryan 0:b74591d5ab33 214 r = self.mbed.rpc(self.name, "putc", [str(value)])
be_bryan 0:b74591d5ab33 215
be_bryan 0:b74591d5ab33 216 def puts(self, value):
be_bryan 0:b74591d5ab33 217 r = self.mbed.rpc(self.name, "puts", ["\"" + str(value) + "\""])
be_bryan 0:b74591d5ab33 218
be_bryan 0:b74591d5ab33 219 def getc(self):
be_bryan 0:b74591d5ab33 220 r = self.mbed.rpc(self.name, "getc", [])
be_bryan 0:b74591d5ab33 221 return int(r)
be_bryan 0:b74591d5ab33 222
be_bryan 0:b74591d5ab33 223
be_bryan 0:b74591d5ab33 224 def wait(s):
be_bryan 0:b74591d5ab33 225 time.sleep(s)