I need help with converting any example from Keil to SES

[JacobBudny]

Hello,

I've been trying for days to convert any example from Keil to SES, I have road probably every question here on the dev zone but I am unable to fix this, I ever specially install windows on my mac to try if there it would work.

So, I have done everything from official nordic documents, I've been through several problems which I happily solve, but that I'm not able to.

I get those errors:

unplaced section: .log_dynamic_data_app [nrf_log_frontend.o], size=12, align=4

undefined symbol: __SRAM_segment_end__

undefined symbol: __start_log_const_data

undefined symbol: __start_log_dynamic_data

undefined symbol: __stop_log_const_data

I'm working on latest SEGGER, I have tried latest SDK, also 14.2 . The same errors. 

Thanks for reply

[Nguyen Hoan Hoang]

It seems like you are not using the correct startup code.  Startup code and linker scripts are different.  Startup code and linker script go in pair. You need to use the one made for SES.

[JacobBudny]

Hey, I have followed instructions from here https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/segger-embedded-studio-a-cross-platform-ide but its a little bit outdated since now there is SES 4.50.

Maybe there is a tutorial of how to rewrite programs from Keil to SES? Please like, I have spent so much hours for that, everyone seems get it done, and I am unable to transfer even Blinky example... 

[JacobBudny]

I did not managed to fix it, does anybody know how to get data from magnetometer? and converting raw data to G's from acc and gyro ?

[Nguyen Hoan Hoang]

The values are float and you are displaying using integer.  Which is wrong conversion.

For the mag, have you put the correct I2C device address.  It's not the same as accel.  Accel & Gyro use same i2c address.  mag is different.

[JacobBudny]

I know, that I was able to fix by replacing %d to %f, now I am getting the same values as in debug, but this values seems strange, have a look:

But raw values seems fine, so there is something wrong with conversion, I tried to debug that, but everything seems fine in the code

[Nguyen Hoan Hoang]

Why do you thing so ? 

[JacobBudny]

On flat surface I should be getting around 0 for x, 0 for y, and about 9/-9 for z in m/s^2. I changed the scale from 4 to 16, but still I am getting max 8, I assume that scale factor is responsible for that, but Is it a good option?


Also from gyro I am getting this:



The same is in the debug, when I try to debug, the conversion lines change values to NaN 

[Nguyen Hoan Hoang]

the accel data should give you approx 0g not 9g. if it not moving

Gyro adc range settings is missing which cause div by 0 => nan.

[JacobBudny]

But if not moving there is still force acting on the Z axis, which should be something about 9,8 and even with scale 16 I am getting 8 only, and 16 is the biggest scale. 

Okay I see it now, and that is causing NAN in all of that values:


How can I set up this range?

[Nguyen Hoan Hoang]

gravity is 1g not 9g

[JacobBudny]

Yes yes, but I am talking m/s^2, and 1 g = 9,8 m/s^2. We misunderstood each other. I was thinking earlier that accdata is in m/s^2 unit not g unit, sorry. If it's in g unit now it seems fine. 

How about the gyro?

[Nguyen Hoan Hoang]

Didn't you read my message.  I said gyro was missing the rage setting in the driver.

The accel data gives you in g as described in the data structure comment.