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tools: Add option to pyboard.py to wait for serial device to be ready.

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Also prints a nicer error message if the serial connection could not be
established.
This commit is contained in:
Peter Hinch 2015-12-01 06:13:50 +00:00 committed by Damien George
parent 946f870e3c
commit f4fcc14cfb
1 changed files with 24 additions and 4 deletions
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28
tools/pyboard.py
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@ -117,13 +117,32 @@ class TelnetToSerial:
return n_waiting return n_waiting
class Pyboard: class Pyboard:
def __init__(self, device, baudrate=115200, user='micro', password='python'): def __init__(self, device, baudrate=115200, user='micro', password='python', wait=0):
if device and device[0].isdigit() and device[-1].isdigit() and device.count('.') == 3: if device and device[0].isdigit() and device[-1].isdigit() and device.count('.') == 3:
# device looks like an IP address # device looks like an IP address
self.serial = TelnetToSerial(device, user, password, read_timeout=10) self.serial = TelnetToSerial(device, user, password, read_timeout=10)
else: else:
import serial import serial
self.serial = serial.Serial(device, baudrate=baudrate, interCharTimeout=1) delayed = False
for attempt in range(wait + 1):
try:
self.serial = serial.Serial(device, baudrate=baudrate, interCharTimeout=1)
break
except OSError, IOError: # Py2 and Py3 have different errors
if wait == 0:
continue
if attempt == 0:
sys.stdout.write('Waiting {} seconds for pyboard '.format(wait))
delayed = True
time.sleep(1)
sys.stdout.write('.')
sys.stdout.flush()
else:
if delayed:
print('')
raise PyboardError('failed to access ' + device)
if delayed:
print('')
def close(self): def close(self):
self.serial.close() self.serial.close()
@ -261,13 +280,14 @@ def main():
cmd_parser.add_argument('-u', '--user', default='micro', help='the telnet login username') cmd_parser.add_argument('-u', '--user', default='micro', help='the telnet login username')
cmd_parser.add_argument('-p', '--password', default='python', help='the telnet login password') cmd_parser.add_argument('-p', '--password', default='python', help='the telnet login password')
cmd_parser.add_argument('-c', '--command', help='program passed in as string') cmd_parser.add_argument('-c', '--command', help='program passed in as string')
cmd_parser.add_argument('-w', '--wait', default=0, type=int, help='seconds to wait for USB connected board to become available')
cmd_parser.add_argument('--follow', action='store_true', help='follow the output after running the scripts [default if no scripts given]') cmd_parser.add_argument('--follow', action='store_true', help='follow the output after running the scripts [default if no scripts given]')
cmd_parser.add_argument('files', nargs='*', help='input files') cmd_parser.add_argument('files', nargs='*', help='input files')
args = cmd_parser.parse_args() args = cmd_parser.parse_args()
def execbuffer(buf): def execbuffer(buf):
try: try:
pyb = Pyboard(args.device, args.baudrate, args.user, args.password) pyb = Pyboard(args.device, args.baudrate, args.user, args.password, args.wait)
pyb.enter_raw_repl() pyb.enter_raw_repl()
ret, ret_err = pyb.exec_raw(buf, timeout=None, data_consumer=stdout_write_bytes) ret, ret_err = pyb.exec_raw(buf, timeout=None, data_consumer=stdout_write_bytes)
pyb.exit_raw_repl() pyb.exit_raw_repl()
@ -291,7 +311,7 @@ def main():
if args.follow or (args.command is None and len(args.files) == 0): if args.follow or (args.command is None and len(args.files) == 0):
try: try:
pyb = Pyboard(args.device, args.baudrate, args.user, args.password) pyb = Pyboard(args.device, args.baudrate, args.user, args.password, args.wait)
ret, ret_err = pyb.follow(timeout=None, data_consumer=stdout_write_bytes) ret, ret_err = pyb.follow(timeout=None, data_consumer=stdout_write_bytes)
pyb.close() pyb.close()
except PyboardError as er: except PyboardError as er: