Maximum size for script file

[Antonia-place]

Hello,
What is the maximum size of code (script) file supported by MicroPython for PSoC6 in this moment? Because I have a file with aprox 1000 lines of code and the when I try to save this file into PSoC, only first aprox 350 line was saved and then I see this error in Thonny:

"Could not write next block after having written 16384 bytes to /Program.py
Make sure your device's filesystem has enough free space. (When overwriting a file, the old content may occupy space until the end of the operation.)

PROBLEM IN THONNY'S BACK-END: Exception while handling 'write_file' (OSError: [WinError Traceback (most recent call last):

File "", line 1, in

File "", line 5, in __W

OSError: 28"

I know that MicroPython is in early stage of porting, but still...

Thank you,
Mihai

[NikhitaR-IFX]

Hi @Antonia-place ,

The external flash in PSoC has 512MB and the scripts you try to execute ideally is consuming this part. The above error message indicates you don't have enough space in your external flash. Two things to check here would be:

1. Is your filesystem having enough space? It could have happened that your previous applications did not clear up the space right. A tip: In order to check free space, you can use the os commands.
2. The script you are running is probably taking up a lot more space than expected. To investigate this, it matters what exactly is within your script.

If you can provide us your script, we will try to reproduce the same at our end and support better. Let us know!

Thanks and Regards,
Nikhita

[Antonia-place]

Hi,
I can not post the entire cod, because I am working on it for an Hackster contest (https://www.hackster.io/contests/connectthingswithcode).
But, I make some memory verification, in paralel, on PSoC6 and PRI Pico and I see the following data, in this pictures:

I created the same file on RPI PIco, and I saved with success into 4MB flash; then I try to save (not run!) the same file into PSoC6 (with MicroPython v0.4.0) without success.

My question is: it is an issue regarding to files with more than, let say, 500 lines on MicroPython v0.4.0 for PSoC6? Why is this difference bettween os.stat("") and os.stat("Program.pt") ( see above pictures)?

Thank you,
Mihai

[NikhitaR-IFX]

Hi,
Thank you for sharing the details.
Firstly, let me answer you on difference you observe in os.stat().

• os.stat("") is returning you the information about the current working directory and
• os.stat("Program.py") returns the information about this specific file meaning size of file, file permissions, modified time etc.

Talking about the issue:
From the images, I see that in Pico, the available block is 313 while in psoc6 it is 247 and I suspect that could be the reason. Nevertheless, your file size being 16384 bytes this should be enough space. Let me investigate more on this and get back to you.

[Antonia-place]

Hi,
I test again this issue, this time with a file with all lines comented and I have the same issue.
I think that is ts an issue aith the maximul file size on ported version on MIcroPython on PSOC6.

The code file used for this test:
Can not save large files on PSoC6.zip

Could you, please, try to reproduce this issue?

Thank you,
Mihai

[Antonia-place]

Hello,
Today I tested the upload of the attached test file and the result is not satisfactory: only 492 lines from the files are uploaded using Arduino Lab, the same as Thonny.
But Arduino Lab did not complain for the file size...
Moreover, sometimes, only zero lines was uploaded using Arduino LAB.

So, please verify on your side if the file is uploaded completly;
The "Test.py" contain 528 lines of code.

I attached pictures from my trys:
Test.zip

I am waiting for news,

Thank you,
Mihai

[NikhitaR-IFX]

Hi,

I saved the file you shared in the zip previously. Please see the screenshot here.

Are you using the latest version of Arduino Lab for MPY? I had same issue with previous version and seems like they have upgraded their IDE. I would suggest please try with latest version of IDE or mpremote tool and confirm.

Thanks and Regards,
Nikhita

[Antonia-place]

Hi,
Previusly I used Arduinl LAB v0.5.0 .
Now, I used the latest version of Arduino LAB, 0.8.0 and indeed, the file is uploaded completly.

But I am sad that Thonny is not working, because the UI of Thonny and how all the files are handled is more intuitive than in Arduino LAB...
Maybe, in the future, Thonny will be updated and prepared for PSoC6 as is used with RPI Pico.

Thank you for support,
Mihai

[NikhitaR-IFX]

I agree completely! Thonny has been really good so far. Meanwhile we have raised issue in Thonny issues corner and hopefully we will figure out a fix soon. Thanks again for your contributions!

Thanks and Regards,
Nikhita

[Antonia-place]

Hello,
I tested again this issue using Arduinl Lab v0.8.0 and MicroPython for PSoC7 v0.5.0.
For test, I use the attached file.
The result is: transfer file from PC to PSoC6 remain at 99% for few seconds and then the empty files is saved into PSoC6; please see the attachments.
In this situation, I think that is not an Thonny or Arduinl Lab issue; for sure is a porting issue.
Could you, please, try to analize this?
Thank you,
Mihai

File used for test: D_Format_text_fix_mare.zip

[jaenrig-ifx]

Solved in #68