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How can I set up custom flash partitions for an ESP32 MSBuild project?
Specifically, I want some partitions reserved for some data (Type = data, SubType = nvs?). I’d give it a unique name so I know what it’s used for in my program when I call the
esp_partition_find_first(
ESP_PARTITION_TYPE_DATA,
ESP_PARTITION_SUBTYPE_DATA_NVS,
“my_data”);Do I need to run the esp-idf tool to first generate a partitions.bin file before creating a new project? (see http://esp-idf.readthedocs.io/en/latest/api-guides/partition-tables.html and partition_table/gen_esp32part.py).
Hi,
Yes, please run the esp-idf tool, generate a new partitions.bin file and specify a path to it on the first page of VisualGDB Project Properties.
Thanks! I was able to get something that seems to work.
It seems I had to make a custom partition type in the range 0x40-0xFE. Otherwise, if I make it general NVS data, the WiFi will try to store wifi configuration data in that space. (I was using your WiFi server example/tutorial as the starting point for the project). The subtype then has to be O (instead of nvs) or the gen_esp32part.py doesn’t like it.
I left the other partitions alone so hopefully the WiFi portion will continue to work, correctly. (It seems to be working so far).
# Name, Type, SubType, Offset, Size, Flags factory, app, factory, 0x010000, 1M, rfdata, data, phy, 0x110000, 0x40000, wifidata, data, nvs, 0x150000, 0x40000, --------------- App Partitions----------- --- App Partition 1 --- pPartition->type 0 pPartition->subtype 0 pPartition->address 0x00010000 pPartition->size 0x00100000 pPartition->label factory pPartition->encrypt 0 --------------- Data Partitions----------- --- Data Partition 1 --- pPartition->type 1 pPartition->subtype 2 pPartition->address 0x00150000 pPartition->size 0x00040000 pPartition->label wifidata pPartition->encrypt 0 --- Data Partition 2 --- pPartition->type 1 pPartition->subtype 1 pPartition->address 0x00110000 pPartition->size 0x00040000 pPartition->label rfdata pPartition->encrypt 0
So, my new partition.csv table looked something like this
# Name, Type, SubType, Offset, Size, Flags # Note: if you change the phy_init or app partition offset, make sure to change the offset in Kconfig.projbuild factory, app, factory, 0x010000, 1M, rfdata, data, phy, 0x110000, 0x40000, wifidata, data, nvs, 0x150000, 0x40000, my_data, 0x40, 0, 0x190000, 0x10000
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