Clock config of the MESH sdk

RE: Clock config of the MESH sdk

David Edwin — Thu, 21 Dec 2017 14:42:29 GMT

I got an nRF51-DK (256K Flash and 32K RAM) board and removed the 32KHz LF crystal to simulate your board. I made the changes for the LF clock source in the mesh_core_setup(), I was able to get the light switch client running and it responds correctly to button presses.

#elif SD_BLE_API_VERSION >= 2
nrf_clock_lf_cfg_t lfc_cfg = {NRF_CLOCK_LF_SRC_RC, 32, 2, NRF_CLOCK_LF_XTAL_ACCURACY_20_PPM};

RE: Clock config of the MESH sdk

David Edwin — Thu, 21 Dec 2017 13:16:51 GMT

You may have hit a softdevice assert when debugging and have fallen into the assert handler. Can you verify this ?

RE: Clock config of the MESH sdk

mansfield — Thu, 21 Dec 2017 10:20:56 GMT

It seems that the problem is not sd_softdevice_enable(). I debug the program step by step and find it sleep for ever at nrf_mesh_prov_generate_keys() in setup_provisionee(). The code I chaged is just led and clock:

main.c

RE: Clock config of the MESH sdk

Hung Bui — Wed, 20 Dec 2017 13:22:42 GMT

Please post the snippet of the code you used, and where you put it. Also please check what kind of error return code you have when you call sd_softdevice_enable()

RE: Clock config of the MESH sdk

mansfield — Wed, 20 Dec 2017 02:54:40 GMT

Thanks! I download the 1.0 version and test just now, but failed again. The softdevice is s130_2_0_1. And the clock set like this: config_params.lf_clk_cfg.source = NRF_CLOCK_LF_SRC_RC; config_params.lf_clk_cfg.xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_250_PPM; config_params.lf_clk_cfg.rc_ctiv = 1; config_params.lf_clk_cfg.rc_temp_ctiv = 1;

RE: Clock config of the MESH sdk

Hung Bui — Tue, 19 Dec 2017 13:57:20 GMT

You haven't configure the config_params.lf_clk_cfg.rc_ctiv, it shouldn't be 0 when you use RC.

RE: Clock config of the MESH sdk

David Edwin — Tue, 19 Dec 2017 10:39:01 GMT

oops, jumped the gun a bit. It should be out today. Please mention the softdevice version that you are using in addition.

RE: Clock config of the MESH sdk

mansfield — Tue, 19 Dec 2017 09:56:32 GMT

David,thank you! The IC is NRF51822 QFACA1, and the SDK is nrf5_SDK_for_Mesh_v0.10.1-Alpha_src. I can't find the 1.0 release version at the infocenter. The newest is nRF5 SDK for Mesh v0.10.0-alpha. Can you give me the link please?

RE: Clock config of the MESH sdk

David Edwin — Tue, 19 Dec 2017 09:49:40 GMT

please specify the IC version and the SDK version that you are that you are using . I think you should switch to the newest mesh release (1.0 release) so this is smoother going forward. If you need the internal LF RC source for the 32KHz , you do not need to set the crystal accuracy.