Error while adding app_uart_fifo.c

[Newbie]

Hello, I am using pca10028 and sdk 12.2. I am trying to add app_uart_fifo.c file to my code. I have added the paths and also I have made changes in sdk_config.h. The changes I made in sdk_config.h are

// <e> APP_UART_ENABLED - app_uart - UART driver
//==========================================================
#ifndef APP_UART_ENABLED
#define APP_UART_ENABLED 1
#endif
#if  APP_UART_ENABLED
// <o> APP_UART_DRIVER_INSTANCE  - UART instance used
 
// <0=> 0 

But I am getting error as below.

.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_fifo_flush (referred from app_uart_fifo.o).
.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_fifo_get (referred from app_uart_fifo.o).
.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_fifo_init (referred from app_uart_fifo.o).
.\_build\nrf51422_xxac.axf: Error: L6218E: Undefined symbol app_fifo_put (referred from app_uart_fifo.o).

Thanks, Shailav

[Jørgen Holmefjord]

Hi,

You also need to include app_fifo.c from /components/libraries/fifo, and enable app_fifo in sdk_config.h:

// <q> APP_FIFO_ENABLED  - app_fifo - Software FIFO implementation
 

#ifndef APP_FIFO_ENABLED
#define APP_FIFO_ENABLED 1
#endif

Best regards,

Jørgen

[Newbie]

It worked. Thanks, Shailav