How to fix program size issue when i didn't over flash size?

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Hi guys.

I’m so stuck of this issue.

Please see Fig1. ( ouch! new user couldn’t attached img more than twice… damm it)

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Fig1. project inspection memory.

I dig to solve this problem. there is some article said modify to JSON file, but i could’t find any JSON file on project directory.

2nd i’m try to chaned platformio.ini file such as Fig3. but it’s also didn’t works.

is there anybody help on this problem ?

please pull me on this hell…

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Hi @christopherlee, not 100% sure what your concern is here. Does your program use too much RAM?
Your flash size seems to bee looking fine. Note that using the Inspect tool, Platformio will lauch a Debug build which by default uses more space than a Release build, because compiler optimization is turned down. To get to the same size as your normal release build, add this to your platformio.ini:

debug_build_flags = -Os # optimize for size

But this won’t help bringing your RAM usage down. To fix that, see if you use call-by-value a lot (because this will always copy the objects temporarily) that you could exchange to by-ref handovers. Also look at your object’s lifetimes. Do they exist longer than they need to? Do you use many static variables? Note that those will exist forever :wink:

Hope this helps :slight_smile:

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Hi @schallbert, thanks for kindly help to my problem.

I did the optimize option as -OS but nothing change.

inspection memory said, RAM size is most of full.
but build log is not same as that picture.
it said below

Checking size .pio\build\esp-wrover-kit\firmware.elf
Advanced Memory Usage is available via “PlatformIO Home > Project Inspect”
Error: The program size (1517190 bytes) is greater than maximum allowed (1310720 bytes)
RAM: [== ] 18.1% (used 59404 bytes from 327680 bytes)
*** [checkprogsize] Explicit exit, status 1
Flash: [==========] 115.8% (used 1517190 bytes from 1310720 bytes)

Actually, I’m using 4MB memory version of module, but it’s not looks over than 4MB.

and I think your mention is really help to me.

I integrated few example of Arduino users… it didn’t optimized well…

but i think most high priority to check is build option… because i didn’t use even over 2MB memory…

I have no idea to use extended…

I changed below option to write data to Module

board_upload.flash_size = 8MB
board_upload.maximum_size = 8388608
board_build.partitions = default_8MB.csv

it can program, but module is reset infinite… I’m confuse…

anyway, thanks to focus my problem!! i’m really thank to you!!

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The “Inspect” tool will build your code in debug mode with no optimizations, to get you a rough estimate of the codesize. See Inspect Memory: is it possible with a release build? - #3 by valeros. This topic has also info on how to analyze a release-optimized binary.

As for the 1.5MB of available flash size: That’s the size of the partition dedicated to the application per the partition file and is never the full flash size. Also nut if you change it with maximum_size – it’s always read from the partition file. See docs.

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Hi @maxgerhardt

Thank you for your advice!! it works to me!

you mentioned the partition information, I changed partition table and it’s works!! thank you so much!!

have a nice day!!!