Beginner's ota setup question

[peacejun]

Hello, seniors

I'm using esp32-wroom-32e. The internal flash is 4MB, and I'm also installing 32MB flash memory(winbond 25032fvsig) on the board with this module. Initially, I created a custom partition for 4MB for ota. However, the size of the firmware to upload is 3MB, so the ota0 and ota1 are 2MB each, so I can't upload them. In this case, can I use the 32MB flash memory mounted on the board to implement a ota function that can raise 3MB of firmware?


platformio.ini

Code: Select all

[env:ESP32-2432S028R]
platform = espressif32
board = esp32dev
# board = esp32dev
framework = arduino
monitor_speed = 115200
monitor_filters = 
	esp32_exception_decoder
	time
	colorize
upload_speed = 115200
board_build.partitions = custom_4MB_ota.csv
board_upload.flash_size = 4MB
board_upload.maximum_size = 4194304

custom_4MB_ota.csv

Code: Select all

# Name,     Type,   SubType,      Offset,      Size,        Flags
nvs,        data,    nvs,            ,         0x4000,
otadata,    data,    ota,            ,         0x2000,
phy_init,   data,    phy,            ,         0x1000,
app0,       app,     ota_0,       0x10000,     0x1f0000,
app1,       app,     ota_1,          ,         0x1f0000, 

Thank you for your attention to my pain.