Experimental Eddystone from SDK 11

[Ravin]

nRF5_SDK_11.0.0_new\examples\ble_peripheral\experimental_ble_app_eddystone\pca10028\s130\arm5_no_packs

Using the above mentioned example on a custom board with nf51822. i want to transmit both eddystone uid and tlm frames at the same time is this possible?

Also is there any system call that can be used to load the instance id with the mac id in the main.c code itself. 

if yes, please guide me to do the above mentioned tasks.

[Ravin]

Sir, Sorry for the delayed reply. But I am not able to run the SDK 12.3.0 examples on this board when I contacted the vendor, I got this response -

"It seems  that your firmware need to use crystal oscillators as Nordic's official routine use it, but our F3 with 51822 nordic chip si without  crystal oscillators.

So now our engineer guess that is the reason firmware fail to work when load to F3 devices."

Can you suggest any solutions please?

[Vidar Berg]

No problem. All SDK examples are configured to use the optional 32KHz crystal as the low-frequency clock source. You should make the following changes to main.c to use the internal RC oscillator if your board doesn't have a LF crystal:

diff --git a/examples/ble_peripheral/ble_app_eddystone/main.c b/examples/ble_peripheral/ble_app_eddystone/main.c
index 07e7355..c639921 100644
--- a/examples/ble_peripheral/ble_app_eddystone/main.c
+++ b/examples/ble_peripheral/ble_app_eddystone/main.c
@@ -203,10 +203,10 @@ static void ble_stack_init(void)
     ret_code_t         err_code;
     nrf_clock_lf_cfg_t lf_clock_config;
 
-    lf_clock_config.source        = NRF_CLOCK_LF_SRC_XTAL;
-    lf_clock_config.rc_ctiv       = 0;
-    lf_clock_config.rc_temp_ctiv  = 0;
-    lf_clock_config.xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_20_PPM;
+    lf_clock_config.source        = NRF_CLOCK_LF_SRC_RC;
+    lf_clock_config.rc_ctiv       = 8;
+    lf_clock_config.rc_temp_ctiv  = 1;
+    lf_clock_config.xtal_accuracy = 0; 
 
     // Initialize the SoftDevice handler module.
     SOFTDEVICE_HANDLER_INIT(&lf_clock_config, NULL);

[Ravin]

Vidar Berg said:

ble_gap_addr_t addr;

err_code = sd_ble_gap_address_get(&addr);
APP_ERROR_CHECK(err_code);

/*Offset of APP_EDDYSTONE_UID_ID = APP_EDDYSTONE_UID_FRAME_TYPE+APP_EDDYSTONE_RSSI+APP_EDDYSTONE_UID_NAMESPACE*/
memcpy(&eddystone_uid_data[12], addr.addr, sizeof(addr.addr));

I tried this it , I has reserved the entire data. How to get it the right way?

[Ravin]

Vidar Berg Please help with the quoted issue

Ravin said:

I tried this it , I has reserved the entire data. How to get it the right way?

[Vidar Berg]

You can replace memcpy with a routine that copies the data in reverse order. E.g., https://www.tutorialspoint.com/learn_c_by_examples/reverse_array_copy_in_c.htm