Feather M0 Express Memory allocation error

[Bluegoldfish]

I am trying to run the simple example of the TLC59711 LED driver using a Feather M0 Express.

The latest release of Circuitpython has been installed along with the latest available version of the adafruit_tlc59711.mpy library.

I am getting the following error immediately after a reboot of the vboard...

Code: Select all

Adafruit CircuitPython 7.3.1 on 2022-06-22; Adafruit Feather M0 Express with samd21g18
>>> import board
>>> import busio
>>> import digitalio
>>> import adafruit_tlc59711
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "adafruit_tlc59711.py", line 958, in <module>
  File "adafruit_tlc59711.py", line 1014, in TLC59711AutoShow
MemoryError: memory allocation failed, allocating 64 bytes
>>> 

Please can anyone offer a solution to this problem? Any help will be appreciated.

[dastels]

What's happening is that the code won't fit into memory. The SAMD21 just doesn't have much RAM. It's a big problem in this case since you haven't even gotten to your application code yet! It choking on just the TLC59711 library, the others are in the runtime. Switching to a SAMD51 board (e.g. Feather M4 Express) will solve the problem.

Dave

[Bluegoldfish]

Thanks for the rapid reply. I'll order a Feather M4 Express ans see how I get on.

Regards,

Chris

[dastels]

Cool. It should do well for you. It's a very nice CircuitPython platform.

Dave