Add MPU6050 to FATFS example

Question

Hey guys, 
 I am using NRF51DK board and SDK v12. I want to add MPU6050 library to fatfs example but I have some problems. When i add "mpu6050.h" to my project i get "Not enough information to list image symbols." error. I declared my libraries, added to project items and include paths section. nRF5_SDK_12.3.0_d7731ad.7z You can examine my example in "examples/peripherals/fatfs/pca10028/blank/arm5_no_packs".

Einar Thorsrud · Accepted Answer

Hi, 
 It would have been easier to answer the question if you had posted the full error message. Then we would have seen which symbol was not found by the linker. I attempted to build your project, and got the following error: 
 .\_build
rf51422_xxac.axf: Error: L6218E: Undefined symbol twi_master_transfer (referred from mpu6050.o). 
 This tells us that you have not compiled the twi_master_transfer function, so you need to add the relevant file to your Keil project. This is twi_hw_master.c from \components\drivers_nrf	wi_master\deprecated\. Building again you now get this error: 
 ..\..\..\..\..\..\components\drivers_nrf	wi_master\deprecated	wi_hw_master.c(42): error: #5: cannot open source input file "twi_master_config.h": No such file or directory
 #include "twi_master_config.h"
..\..\..\..\..\..\components\drivers_nrf	wi_master\deprecated	wi_hw_master.c: 0 warnings, 1 error 
 Add ..\..\..\..\..\..\components\drivers_nrf	wi_master\deprecated\config to the include path to fix this last issue.

Add MPU6050 to FATFS example

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