Build generic function with TWI read

RE: Build generic function with TWI read

Vidar Berg — Mon, 25 Mar 2019 08:01:00 GMT

[quote user="BarS"][/quote]

I use the TWI callback.

I don't know which SWI it use for the I2C.

Ok, then it's the I2C interrupt.

[quote user="BarS"]How can I get information from the hardfault handler when it jump there?[/quote]

You should use the hardfault handler from the hardfault handling library. Just add the following files to your build and enable the handler in sdk_config.h:

- nRF5_SDK_15.3.0_59ac345\components\libraries\hardfault\hardfault_implementation.c

- nRF5_SDK_15.3.0_59ac345\components\libraries\hardfault\nrf52\handler\hardfault_handler_*.c

This handler will attempt to determine the cause and print out the error information.

RE: Build generic function with TWI read

Bar — Fri, 22 Mar 2019 19:47:30 GMT

I use the TWI callback.

I don't know which SWI it use for the I2C.

How can I get information from the hardfault handler when it jump there?

Bar.

RE: Build generic function with TWI read

Vidar Berg — Fri, 22 Mar 2019 07:12:33 GMT

Hi,

Unfortunately, it's hard to say why you get hardfault without debugging your code. It would be helpful if you could try to narrow it down a bit more. Maybe you can try our hardfault handling library to find out what triggers it.

[quote userid="76576" url="~/f/nordic-q-a/45190/build-generic-function-with-twi-read"] see it return 0x00 and the NACK but on my SWI don't get to the callback and I jump into error on HardFault_Handler.[/quote]

Are you using a SW interrupt (SWI), or are you referring to the TWI callback?

RE: Build generic function with TWI read

awneil — Thu, 21 Mar 2019 12:01:21 GMT

How to properly post source code: