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pycom / pycom-libraries

MicroPython libraries and examples that work out of the box on Pycom's IoT modules
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MemoryError: memory allocation failed, #35

Closed fableh closed 6 years ago

fableh commented 6 years ago

Hi guys,

iam using the LoPy board to try out the "Pytrack" sample but i got the following error:

Traceback (most recent call last): File "main.py", line 35, in File "/flash/lib/L76GNSS.py", line 55, in coordinates MemoryError: memory allocation failed, allocating 3751 bytes MicroPython v1.8.6-796-g489fafa0 on 2017-10-15; LoPy with ESP32 Type "help()" for more information.

os.uname()= (sysname='LoPy', nodename='LoPy', release='1.9.2.b2', version='v1.8.6-796-g489fafa0 on 2017-10-15', machine='LoPy with ESP32', lorawan='1.0.0')

pytrack_0.0.6.dfu

what i´am doing wrong here?

thx and br, fabian

rpcme commented 6 years ago

+1, received the same error. I think this happens when reading is done from indoors. When I scaled down the code to give it breathing room, it timed out before hitting this problem.

I am using pyrack firmware 0.0.7, head on library from this repo. MicroPython v1.8.6-820-g56004e13 on 2017-11-08; LoPy with ESP32

bogd commented 6 years ago

+1 here. Exactly the same - after just a few reads (sometimes just one - see example below), the program crashes with MemoryError.

RTC Set from NTP to UTC: (1970, 1, 1, 0, 3, 19, 594962, None)
Adjusted from UTC to EST timezone (1970, 1, 1, 2, 3, 19, 3, 1)

(None, None) - (1970, 1, 1, 0, 3, 49, 703270, None) - 37728
Traceback (most recent call last):
  File "<stdin>", line 36, in <module>
  File "/flash/lib/L76GNSS.py", line 56, in coordinates
MemoryError: memory allocation failed, allocating 4064 bytes

I'm using PyTrack firmware 0.0.7 (just updated it :) ).

@rpcme - what do you mean when you say "I scaled down the code"?

PhilipOlsson commented 6 years ago

+1, I also see the same issue with just the minimal pytrack example code on:

os.uname() (sysname='LoPy', nodename='LoPy', release='1.10.2.b1', version='v1.8.6-849-g0af003a4 on 2017-11-24', machine='LoPy with ESP32', lorawan='1.0.0')

Pytrack 0.0.7

EdsonAlcala commented 6 years ago

any news about this issue?

danicampora commented 6 years ago

This should have been fixed long ago with this line: https://github.com/pycom/pycom-libraries/blob/master/pytrack/lib/L76GNSS.py#L75

Is that not the case? Are you still getting the memory allocation error?

bogd commented 6 years ago

I was able to get a GPS fix after changing the nmea length as per the above fix. However, I do remember having to manually edit the file in order to make that change. Is it possible that this was before the fix made it into the official library?

Anyway, as far as I can tell, the issue is now solved. Thank you!