nRF52832 Bluetooth Keil configuration

[Abdelaziz]

Hi i just bough module E73-TBB(nRF52832) from EBYTE.
I've already downloaded the sdk this link
https://www.nordicsemi.com/Products/nRF52832/Download#infotabs

I test with ble_app_blinky (Keil uVision5 ), uploaded success work as normal.
but example Bluetooth Uart not working (no device found from my phone);

does module need special configuration for oscillator?

[Sigurd]

Hi,

 

does module need special configuration for oscillator?

 Yes, in sdk_config.h, you need to configure it like this:

//==========================================================

 

// <h> Clock - SoftDevice clock configuration

 

//==========================================================
// <o> NRF_SDH_CLOCK_LF_SRC - SoftDevice clock source.

// <0=> NRF_CLOCK_LF_SRC_RC
// <1=> NRF_CLOCK_LF_SRC_XTAL
// <2=> NRF_CLOCK_LF_SRC_SYNTH

 

#ifndef NRF_SDH_CLOCK_LF_SRC
#define NRF_SDH_CLOCK_LF_SRC 0
#endif

 

// <o> NRF_SDH_CLOCK_LF_RC_CTIV - SoftDevice calibration timer interval.
#ifndef NRF_SDH_CLOCK_LF_RC_CTIV
#define NRF_SDH_CLOCK_LF_RC_CTIV 16
#endif

 

// <o> NRF_SDH_CLOCK_LF_RC_TEMP_CTIV - SoftDevice calibration timer interval under constant temperature.
// <i> How often (in number of calibration intervals) the RC oscillator shall be calibrated
// <i> if the temperature has not changed.

 

#ifndef NRF_SDH_CLOCK_LF_RC_TEMP_CTIV
#define NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 2
#endif

 

// <o> NRF_SDH_CLOCK_LF_ACCURACY - External clock accuracy used in the LL to compute timing.

// <0=> NRF_CLOCK_LF_ACCURACY_250_PPM
// <1=> NRF_CLOCK_LF_ACCURACY_500_PPM
// <2=> NRF_CLOCK_LF_ACCURACY_150_PPM
// <3=> NRF_CLOCK_LF_ACCURACY_100_PPM
// <4=> NRF_CLOCK_LF_ACCURACY_75_PPM
// <5=> NRF_CLOCK_LF_ACCURACY_50_PPM
// <6=> NRF_CLOCK_LF_ACCURACY_30_PPM
// <7=> NRF_CLOCK_LF_ACCURACY_20_PPM
// <8=> NRF_CLOCK_LF_ACCURACY_10_PPM
// <9=> NRF_CLOCK_LF_ACCURACY_5_PPM
// <10=> NRF_CLOCK_LF_ACCURACY_2_PPM
// <11=> NRF_CLOCK_LF_ACCURACY_1_PPM

 

#ifndef NRF_SDH_CLOCK_LF_ACCURACY
#define NRF_SDH_CLOCK_LF_ACCURACY 1
#endif

[Abdelaziz]

i

Thanks for your help!

I've changed sdk_config.h, exactly as you mentioned; unfortunately it doesn't work!
Any suggestion, what shoud I verify also!

[Sigurd]

Maybe some issue with the GPIO pins used for UART.

Try to comment out this from main(), and see if it advertises then.

//uart_init();

//printf("\r\nUART started.\r\n");

[Abdelaziz]

not working also!

I've tried with ble_peripheral ->ble_app_uart
(\nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_uart\pca10040\s112\arm5_no_packs) tested by UART terminal (Termite) works fine

[Abdelaziz]

Hi, 

Today I change to (SEGGER Embedded Studio) and every thing is working well; the module start advertising.

In addition when debugging with Keil I got the following error:

*** error 35: undefined line number.

[Sigurd]

Abdelaziz said:

Today I change to (SEGGER Embedded Studio) and every thing is working well; the module start advertising.

 Good. One difference between Keil and SES projects, is that the SES projects are configured to flash the SoftDevice for you.