Setting Static Device Address in hci_uart

Question

Hi, 
 I would like to set the FICR-Address as Static Device Address in hci_uart. I know how to set this address as Public Address but can't find any suitable API to set it as Static Device Address. All functions I found are needing the host implementation, which is not there in my this case. I also know there is a HCI command HCI_LE_Set_Random_Address but I want the address to be set on controller side because the FICR-Address is (obviously) not accessible on the host side. 
 Regards, Oliver

dejans · Accepted Answer

Hi Oliver,

Here are possible steps
1. read static address from FICR (sdc_hci_cmd_vs_zephyr_read_static_addresses)
read_static_address
2. returned static address can be set via sdc_hci_cmd_le_set_random_address
set_random_address

Here is an example

#include <sdc_hci_vs.h>
#include <sdc_hci_cmd_le.h>

//static address stored in FICR
uint8_t addr[6] = {0x56, 0xFF, 0X99, 0X00, 0XCD, 0X29}
sdc_hci_cmd_le_set_random_address_t params;
memcpy(&params.random_address[0], addr, sizeof(addr));
sdc_hci_cmd_le_set_random_address(&params);

Alternatively, you could use hcitool for setting random address over HCI UART.

sudo btattach -B /dev/ttyACM0 -S 1000000
sudo hcitool cmd 0x08 0x05 29 CD 00 99 FF 56

Best regards,
Dejan

Setting Static Device Address in hci_uart

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