Help for best partitions.csv with ESP32

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1

Hi,

I am struggling a bit with configuring my partitions.csv. I read some documents with e.g. an OTA partition and before I reset everything in a wrong way its perhaps better to ask:

The main topics I like to achieve:

  • Using ArduinoOTA (with a back OTA partition - that I understand it is that…)
  • Having a large nvs partition as I save recurrently data to it and like to avoid wear issues with flash
  • having a core dump partition
  • assigning the whole flash available (4M)

That is the partition.csv I have. I understood that nvs is nvs storage, phy_init for hardware like Wifi, factory the application and coredump for storing a coredump.
ImpulseSmartMeter/partitions.csv at mqtt_update · NilsRo/ImpulseSmartMeter

Many thanks in advance,
Nils

2

I think it is best to start with the default.csv. This is for devices with 4 MB and offers you 20 kB NVS, two OTA partitions with 1.25 MB for the app, 1.375 MB file system and a partition for the core dump.

If the 20 kB for the NVS is not sufficient, replace it with the partition for the file system:

# Name,   Type, SubType, Offset,  Size, Flags
otadata,  data, ota,     0xe000,  0x2000,
app0,     app,  ota_0,   0x10000, 0x140000,
app1,     app,  ota_1,   0x150000,0x140000,
nvs,      data, nvs,     0x290000,0x160000,
coredump, data, coredump,0x3F0000,0x10000,
3

Perfect.

I tried the last scheme and can see that the flash memory become larger. Is there something special to do with ArduinoOTA that the OTA partitions are used?

4

No, there is nothing more to do.
The partitions are used automatically.

5

Perfect, many thanks!

6

Thank you for sharing this information…

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