I have a development board and load the client central BLE blinky to it, then the peripheral BLE blinky to my custom board and power up and the central development board stays LED 1 on and never switches to LED 2.

Question

I have a development board and load the client central BLE blinky to it, then the peripheral BLE blinky to my custom board and power up and the central development board stays LED 1 on and never switches to LED 2. Any suggestions?

Kenneth · Accepted Answer

To change BLE clock source you should edit sdk_config.h, for instance 
 #de fine NRF_SDH_CLOCK_LF_SRC 0 #de fine NRF_SDH_CLOCK_LF_RC_CTIV 16 #de fine NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 2 #de fine NRF_SDH_CLOCK_LF_ACCURACY 1 
 You may also need to edit generic LFCK usage: 
 #define NRFX_CLOCK_CONFIG_LF_SRC 0 #define CLOCK_CONFIG_LF_SRC 0 
 Please also comment on my other questions/comments: 
 - Results of DTM tests. 
 - Pulled up UART RXD line with external pull-up. 
 - Did anyone from Nordic review your custom board (schematic and layout)?

I have a development board and load the client central BLE blinky to it, then the peripheral BLE blinky to my custom board and power up and the central development board stays LED 1 on and never switches to LED 2.

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