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dwm_cfg_anchor_set

Configures node as an anchor with given options. The BLE option cannot be enabled with encryption. Otherwise, the configuration is considered invalid and will not be used. Encryption cannot be enabled if encryption key is not set. This call requires a reset for the new configuration to take effect (dwm_reset). Enabling encryption on the initiator will automatically enable encryption of all nodes with the same encryption key set (). This enables encryption for the whole network with the same pan ID (network ID) and encryption key remotely from one place.

Normally, this call writes to internal flash when setting a new value. Hence, it should not be used frequently and can take hundreds of milliseconds in the worst case.!

int dwm_cfg_anchor_set(dwm_cfg_anchor_t *cfg_anchor);
Parameters

  • input – cfg_anchor

  • cfg_anchor – initiator, bridge, led_en, ble_en, uwb_mode, fw_update_en, enc_en

  • initiator – ‘0’ | ‘1’ (Initiator role enable)

  • bridge – ‘0’ | ‘1’ (Bridge role enable)

  • enc_en – ‘0’ | ‘1’ (encryption enable)

  • led_en – ‘0’ | ‘1’ (general purpose LEDs enable)

  • ble_en – ‘0’ | ‘1’ (BLE enable)

  • uwb_mode – ‘0’ | ‘1’ | ‘2’ (0-off, 1-passive, 2-active)

  • fw_update_en – ‘0’ | ‘1’ (Firmware update enable)

  • output – err_code

Note

Available only when the firmware is compiled with UWB routing backhaul:
uwb_bh_routing: ‘0’ | ‘1’ | ‘2’ (0(OFF) - anchor will not become a routing anchor, 1(ON) - anchor will be preferred by the routing algorithm to be chosen as a routing anchor, 2(AUTO) - Whether anchor becomes routing or not depends entirely on the routing algorithm)

C code example

dwm_cfg_anchor_t cfg;
int rv;
cfg.initiator = 1;
cfg.bridge = 0;
/* [Available only when the firmware is compiled with UWB routing backhaul: cfg.uwb_bh_routing: DWM_UWB_BH_ROUTING_AUTO;] */
cfg.common.enc_en = 1;
cfg.common.led_en = 1;
cfg.common.ble_en = 1;
cfg.common.fw_update_en = 1;
cfg.common.uwb_mode = DWM_UWB_MODE_OFF;
rv = dwm_cfg_anchor_set(&cfg);
if (rv == DWM_ERR_PERM)
{
  printf(“Error: either encryption or BLE can be enabled, encryption can be enabled only if encryption key is set\n”);
}
dwm_reset();

SPI/UART example

TLV request

0x07

0x02

(bit 5) enc_en (bit 4) led_en (bit 3) ble_en (bit 2) fw_update_en (bits 0-#. uwb_mode

0x9C 0x02

Type 0x07 means command dwm_cfg_anchor_set

TLV response

type

length

value (see error codes)

0x40

0x01

0x00
Type 0x40 means err_code of the previous command