To my knowledge there is no API available for that which means you have to rewrite the flash on that address (default 0x8000) by yourself. https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/partition-tables.html#partition-tables

However this causes risk of breaking your devices ...

Not sure if I understood you correctly, but you can for example integrate vanilla CMakeLists projects into IDF projects. https://docs.espressif.com/projects/esp-idf/en/v3.2.2/api-guides/build-system-cmake.html#writing-pure-cmake-components

And you can use CMake itself:
https://docs.espressif.com ...

I think

Code: Select all

Connect maximum_packet_size property is over buffer_size(4096), Please first change it

says it can't.

Yes but that is a bug. See details here: https://github.com/espressif/esp-mqtt/pull/320

You can set the "buffer size" via esp_mqtt_client_init() (esp_mqtt_client_config_t::buffer::size).

Thats correct, but messages to be received can be larger than the buffer defined in esp_mqtt_client_init.

Yes. Note you can send packets larger than 1500 bytes, they'll simply get sent in chunks of 1500 bytes and reassembled automatically on the other side.


I am having a strange problem. From the doc:
MQTT_EVENT_DATA: The client has received a publish message. The event data contains: message ID ...

@ESP_rrtandler thanks a lot, this is some great advice.

Our current partition table is already in field and can not be changed anymore. We have one NVS partition but now need three NVS partitions. Using namespaces is not bearable as either of these partition should be erasable and flashable as binary file.

My idea (which seems to work) is the following ...

We observe the same issue using MQTT.
E (311640) transport_base: poll_read select error 113, errno = Software caused connection abort, fd = 51
E (311641) mqtt_client: Poll read error: 119, aborting connection


Edit:
Next to MQTT, we also have a socket for DoIP. For DoIP we always close our socket ...

Hey all,

I want to make sure a specific ota slot will not be booted.
Of course I can (and will) erase the not to be booted ota slot. However, I think OTA data will still see this slot as bootable?
As far as I see esp_ota_set_boot_partition() will only use esp_rewrite_ota_data() to mark the new ...

Hello,

we have a bigger project where a lot of code was added in a separate branch. This branch works fine until its merged into the main branch. The code does not have any obvious flaws, which could explain the error below.

I am a bit confused what needs to happen, that a crash triggers directly ...