Custom partition table not working on v6.4.0 and v6.5.0

[davcmendes]

Hi!

I'm using a custom partition table on one of my esp32 projects, to be more specific the default_8MB.csv table.

Since version 6.4.0 I get the following default 4MB flash usage after compilation:

RAM:   [          ]   3.2% (used 10604 bytes from 327680 bytes)
Flash: [=         ]  13.3% (used 174349 bytes from 1310720 bytes)

Instead of the normal 8MB flash usage I was getting in version 6.3.2:

RAM:   [          ]   3.1% (used 10092 bytes from 327680 bytes)
Flash: [=         ]   5.3% (used 178405 bytes from 3342336 bytes)

This is the platformio.ini file I'm using:

; PlatformIO Project Configuration File
;
;   Build options: build flags, source filter
;   Upload options: custom upload port, speed and extra flags
;   Library options: dependencies, extra library storages
;   Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html

[env:esp32dev]
platform = espressif32@6.5.0
board = esp32dev
framework = espidf
board_upload.flash_size = 8MB
board_upload.maximum_size = 8388608
board_build.partitions = default_8MB.csv

Was there anything related to partition tables that changed in version 6.4.0, that can explain this behaviour?

I'm attaching a default project where I was able to reproduce the issue. test_idf_partition.zip

[valeros]

Hi @davcmendes, you have two app partitions:

app0,     app,  ota_0,   0x10000, 0x140000,
app1,     app,  ota_1,   0x340000,0x330000,

By default, the first one is used to determine available size. If you need the second one, just specify its name directly in yourplatformio.ini:

[env:esp32dev]
platform = espressif32@6.5.0
board = esp32dev
framework = espidf
board_upload.flash_size = 8MB
board_upload.maximum_size = 8388608
board_build.partitions = default_8MB.csv
board_build.app_partition_name = app1

[davcmendes]

Ok, that works. In the older versions It would always show the available size based on the bigger partition, that’s what was confusing me. Thanks for your help @valeros