Hello,Can anyone help me out by giving me complete details of this?

RE: Hello,Can anyone help me out by giving me complete details of this?

MANGO — Thu, 12 Oct 2017 06:20:01 GMT

Hello, Yashur. About the implicit declaration of function sd_app_evt_wait, if you haven't added or configured Nordic's SoftDevice related files, this error will pop up.

For instance, when using Nordic's SDK 14, in nrf_soc.h

enum NRF_SOC_SVCS{ // omit others
SD_APP_EVT_WAIT,

SVCALL(SD_APP_EVT_WAIT, uint32_t, sd_app_evt_wait(void));

are defined. Check whether your header include path is configured correctly.

This applies to log_init part as well; Check whether your header include path is configured correctly if it includes nrf_log_ctrl.h or more.

I will add some words to my original answer to help you out with the UART1 problem.

-Best Regards

RE: Hello,Can anyone help me out by giving me complete details of this?

Yashur — Wed, 11 Oct 2017 13:02:08 GMT

And also i have asked about initialising uart while using SPI! the uart example is running fine but when used with SPI it's throwing an error!! I have tried changing the instances of SPI and UART and i found out that UART1 seems to have a problem working!! Could you help me out with that?

RE: Hello,Can anyone help me out by giving me complete details of this?

Yashur — Wed, 11 Oct 2017 12:59:18 GMT

Hey mango, thanks for your answer! I have tried the above code but i'm getting the following error! saying implicit declaration of function sd_app_evt_wait and also of 'log_init'!!

RE: Hello,Can anyone help me out by giving me complete details of this?

MANGO — Tue, 10 Oct 2017 08:00:50 GMT

Hi, Yashur.

Are you talking something like this?

Nordic's

NRF_LOG_INFO, NRF_LOG_WARNING, NRF_LOG_ERROR, and more,

these can use the printf's format specifier like %d or %x.

Hope this helps!

/ Edited at 2018.10.12/**

What MCU and SDK version are you using?

When using Nordic's logger, you can choose the backend; UART or SEGGER RTT.

The above picture was an example when using RTT.

And this is the result when you choose UART as the backend.

I have tested this using SDK 14 and PCA10040, which has nRF52832 populated.

I'm not sure about the version number. Maybe SDK 12 or above uses the sdk_config.h file.

In there, you can choose whether to use RTT or UART while logging.

#define NRF_LOG_ENABLED 1
#define NRF_LOG_BACKEND_UART_ENABLED 1
#define NRF_LOG_BACKEND_UART_TX_PIN 6
#define NRF_LOG_BACKEND_UART_BAUDRATE 30801920
// <30801920=> 115200 baud

Modify these and I think you will see what you want.

By the way, do you really have to use UART1, which I think it doesn't exist, to be the logger's backend?

nRF52832, compared to nRF52840, has UART0 and UARTE0 (Universal asynchronous receiver/transmitter with EasyDMA).

Check the nRF52832 product specification, please.

I'm guessing that this is using UART0 as the backend.

-Best Regards, MANGO