I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

RE: I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

Håkon Alseth — Wed, 14 Aug 2024 08:56:25 GMT

Hi,

Try probing the I2C pins and see how a working scenario vs. a non-working scenario behaves.

The first screenshot indicates a reset or a reboot? If yes, is this a fault condition that occurs? It is hard to see when the debug information available is limited.

Kind regards,

Håkon

RE: I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

PassionPioneer — Tue, 13 Aug 2024 08:01:29 GMT

Hi,

Is there any update on this?

RE: I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

PassionPioneer — Mon, 12 Aug 2024 09:39:15 GMT

Log with buffer size 65535/2048

Log when buffer size is 1024, firmware write is OK

RE: I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

PassionPioneer — Mon, 12 Aug 2024 09:36:02 GMT

Hi,

I tried 2048, it didn't work.

I am working on ch101 ultrasonic sensor, when I use 2048 the firmware is getting stuck and giving any reasonable log.

RE: I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

Håkon Alseth — Mon, 12 Aug 2024 09:27:01 GMT

Hi,

Could you share your log output?

Is there any reason why you are setting up 64kB instead of your max message size (ie. 2048 bytes) ?

Kind regards,

Håkon

RE: I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

PassionPioneer — Sat, 10 Aug 2024 06:26:07 GMT

Hi,

Is there any update?

RE: I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

PassionPioneer — Fri, 09 Aug 2024 13:42:54 GMT

Okay, I tried 65535, there is no reset on board however the I2C call is not performing.

I tried 1024 and 2048 bytes transfer in single call.

RE: I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

Håkon Alseth — Fri, 09 Aug 2024 11:49:24 GMT

Hi,

[quote user=""]I increased the buffer size to 65536 as mentioned below in device tree:[/quote]

The TWIM EasyDMA is 16 bit, meaning 65535 is the max size.

Based on the error message, it seems that you've set it to 65536, which overflows into 0 for a 16 bit value.

Kind regards,

Håkon

RE: I2C configuration (zephyr,concat-buf-size = <65536> and zephyr,flash-buf-max-size = <65536>) is throwing stack overflow error

PassionPioneer — Fri, 09 Aug 2024 07:25:29 GMT

Is there any update on this?