OK, this is a very old thread now, but I what I think the original poster was after is a way to reset an espidf device so that it boots from the factory partition.

So this thread probably answers the need: viewtopic.php?t=31090

I can't recall, sorry.

What does the static allocation for the various libraries look like on the 2 SOCs?
Is there an obvious extra library or jump in library size?

Thanks for the confirm.

I had already switched to using the Events and that is working fine. But the API and doco makes it's use non obvious. I would have saved a lot of time. with just a bit of clarity in the doco.

Am I correct in thinking that the length param specifies the number of bytes that MUST be read before the function returns (if it doesn't time out)?

I had been reading it as the length of the buffer that could be filled.

The docs for uart_read_bytes() imply that if data is available it will return immediately, otherwise it will wait for ticks_to_wait. But this is not the behaviour I am seeing on ESPIDF v4.4.

Instead it always waits for (at least) ticks_to_wait before returning. And if more data is added to the ...

\rom\crc.h lists a number of CRC funcs and provides the polys used for them.

What are the other CRC initialisation values used for each of the funcs? Ie

width
init
refin
refout
xorout


It would make it useful when trying to match CRCs calculated on other systems.

Also it mentions that "we ...

OK, looks like this is being caused by CONFIG_FREERTOS_HZ defaulting to 100 (Hz) which means that a request to wait for 497ms will be rounded down to 49 ticks (490ms) and we will wake up 7ms too early.

Changing CONFIG_FREERTOS_HZ to 1000 fixed the issue.

I have a task that is either grabbing events from a queue or timing out after 500ms. But I am finding that when `xQueueReceive` times out is it sometimes timing out before the 500ms have expired.

I can add code to work around that, but I would like to know why that is occurring as according to the ...

Huh thanks.

I was sure that when I tried that previously it still wrote the SPIFFs partition.

Anyone?
Or is this the wrong part of the forum for this question?