Adding uart functionality in gpiote example

[mariopucciarelli]

Hi, I'm learing how to use the NRF51 DK and I'm trying to modify the app GPIOTE example including the uart functionality. I insert in GPIOTE the directive:

#include "app_uart.h"

and then I insert the folder in the include path in the option of the code, so it compile. But when in the code I call the APP_UART_FIFO_INIT or the APP_UART_INIT as I see in the uart example, the compiler give me the following error:

._build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_uart_init (referred from main.o).

What is the problem? How I can solve it?

[Cory Mast]

Do you add the app_uart.c file to your project directory? Try double clicking the nRF_Drivers folder in the project window of Keil and navigate to the app_uart.c file when prompted to add project files. It may possibly located at (sdk/components/drivers_nrf/uart). Hopefully that helps!

[Ankush]

I added it and it worked but some errors remained as it is.The corresponding .c file is not available in nRF_Drivers folder. The errors are:

._build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol app_timer_init (referred from uart_spi_master_combo2.o). ._build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol bsp_indication_set (referred from uart_spi_master_combo2.o). ._build\nrf52832_xxaa.axf: Error: L6218E: Undefined symbol bsp_init (referred from uart_spi_master_combo2.o).

Please give any suggestions for this...