I use the zephyr version 3.0.9 for DF.i use the both boards nrf52833dk.i set the antenna array including antenna_num,antenna_patterns,and antenna_ref(pdu_antenna).
both file example are here.one is C:\Users\Administrator\zephyrproject\zephyr\samples\bluetooth\direction_finding_peripheral.another is C:\Users\Administrator\zephyrproject\zephyr\samples\bluetooth\direction_finding_central
the next is my confuguration.Firstly,i chnage the nrf52833dk_nrf52833 .overlay file in central.The antenna numbers is 16.
/*
* Copyright (c) 2022 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
&radio {
status = "okay";
/* This is a number of antennas that are available on antenna matrix
* designed by Nordic. For more information see README.rst.
*/
/*dfe-antenna-num = <12>;*/
dfe-antenna-num = <16>;
/* This is a setting that enables antenna 12 (in antenna matrix designed
* by Nordic) for Rx PDU. For more information see README.rst.
*/
/*dfe-pdu-antenna = <0x0>;*/
dfe-pdu-antenna = <0x0>;
/* These are GPIO pin numbers that are provided to
* Radio peripheral. The pins will be acquired by Radio to
* drive antenna switching when AoA is enabled.
* Pin numbers are selected to drive switches on antenna matrix
* designed by Nordic. For more information see README.rst.
*/
dfegpio0-gpios = <&gpio0 3 0>;
dfegpio1-gpios = <&gpio0 4 0>;
dfegpio2-gpios = <&gpio0 28 0>;
dfegpio3-gpios = <&gpio0 29 0>;
};
them i chnage the antenna_partterns in main.c file.
#if defined(CONFIG_BT_DF_CTE_RX_AOA)
/*切换顺序，1,2,3,4,5,6,7,8,9,10,11,12 12根天线 */
/*static const uint8_t ant_patterns[] = { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xA };*/
/*切换顺序，1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 16根天线 */
static const uint8_t ant_patterns[] = { 0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE,
0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF };
#endif /* CONFIG_BT_DF_CTE_RX_AOA */
i also use the jlink_RTT for debug.
so i add the cofiguration in prg.conf file.
#RTT log CONFIG_USE_SEGGER_RTT=y CONFIG_RTT_CONSOLE=y CONFIG_UART_CONSOLE=n
Then there are cnetral and peripheral output.
Central ie here.
00> [DEVICE]: 2E:94:E2:6F:B0:09 (random), AD evt type 3, Tx Pwr: 127, RSSI -63 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 12 messages dropped --- 00> [DEVICE]: 70:7F:98:CA:58:AC (random), AD evt type 3, Tx Pwr: 127, RSSI -57 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 7C:1A:F7:A7:12:0F (random), AD evt type 0, Tx Pwr: 127, RSSI -70 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 7C:1A:F7:A7:12:0F (random), AD evt type 4, Tx Pwr: 127, RSSI -69 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 07:70:87:63:82:1E (random), AD evt type 3, Tx Pwr: 127, RSSI -67 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: CB:54:B9:46:AC:76 (random), AD evt type 3, Tx Pwr: 127, RSSI -82 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> 5 00> 00> [DEVICE]: 4F:A8:BD:F9:59:50 (random), AD evt type 4, Tx Pwr: 127, RSSI -53 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 22 messages dropped --- 00> [DEVICE]: 3A:22:E2:FF:55:2F (public), AD evt type 4, Tx Pwr: 127, RSSI -76 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 2A:DC:47:B4:68:5E (random), AD evt type 3, Tx Pwr: 127, RSSI -62 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 34:5C:9E:BA:11:A1 (random), AD evt type 3, Tx Pwr: 127, RSSI -57 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 20:97:88:23:62:86 (random), AD evt type 3, Tx Pwr: 127, RSSI -88 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 2E:94:E2:6F:B0:09 (random), AD evt type 3, Tx Pwr: 127, RSSI -63 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 6E:2A:15:B7:E6:1A (random), AD evt type 0, Tx Pwr: 127, RSSI -60 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 6E:2A:15:B7:E6:1A (random), AD evt type 4, Tx Pwr: 127, RSSI -60 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Se5 00> 00> [DEVICE]: E6:BA:B9:9D:37:78 (random), AD evt type 3, Tx Pwr: 127, RSSI -57 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 13 messages dropped --- 00> [DEVICE]: 2A:DC:47:B4:68:5E (random), AD evt type 3, Tx Pwr: 127, RSSI -47 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: CB:54:B9:46:AC:76 (random), AD evt type 3, Tx Pwr: 127, RSSI -86 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 4F:A8:BD:F9:59:50 (random), AD evt type 0, Tx Pwr: 127, RSSI -60 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 4F:A8:BD:F9:59:50 (random), AD evt type 4, Tx Pwr: 127, RSSI -60 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 34:5C:9E:BA:11:A1 (random), AD evt type 3, Tx Pwr: 127, RSSI -58 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 7A:39:27:1B:CD:AB (random), AD evt type 0, Tx Pwr: 127, RSSI -78 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 51:DA:[DEVICE]: 07:70:87:63:82:1E (random), AD evt type 3, Tx Pwr: 127, RSSI -59 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 9 messages dropped --- 00> [DEVICE]: E6:BA:B9:9D:37:78 (random), AD evt type 3, Tx Pwr: 127, RSSI -57 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000[DEVICE]: 1B:96:2D:AC:6B:19 (random), AD evt type 3, Tx Pwr: 127, RSSI -53 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 10 messages dropped --- 00> [DEVICE]: FA:0D:AC:D8:7B:0D (public), AD evt type 0, Tx Pwr: 127, RSSI -86 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000[DEVICE]: 14:15:D3:3D:3E:52 (random), AD evt type 3, Tx Pwr: 127, RSSI -78 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 12 messages dropped --- 00> [DEVICE]: 1B:96:2D:AC:6B:19 (random), AD evt type 3, Tx Pwr: 127, RSSI -55 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: E7:D0:A9:51:8B:6A (random), AD evt type 3, Tx Pwr: 127, RSSI -91 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: DE:86:9B:6D:43:F0 (random), AD evt type 0, Tx Pwr: 127, RSSI -35 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: DE:86:9B:6D:43:F0 (random), AD evt type 4, Tx Pwr: 127, RSSI -35 DF Conn App C:1 S:1 D[DEVICE]: DE:86:9B:6D:43:F0 (random), AD evt type 0, Tx Pwr: 127, RSSI -34 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 15 messages dropped --- 00> [DEVICE]: DE:86:9B:6D:43:F0 (random), AD evt type 4, Tx Pwr: 127, RSSI -34 DF Conn App C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: E6:BA:B9:9D:37:78 (random), AD evt type 3, Tx Pwr: 127, RSSI -57 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: FA:0D:AC:D8:7B:0D (public), AD evt type 4, Tx Pwr: 127, RSSI -87 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: D4:73:12:3A:9E:8E (random), AD evt type 0, Tx Pwr: 127, RSSI -61 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 1B:96:2D:AC:6B:19 (random), AD evt type 3, Tx Pwr: 127, RSSI -57 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 2A:DC:47:B4:68:5E (random), AD evt type 3, Tx Pwr: 127, RSSI -61 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 34:5C:9E:BA:11:A1 (random), AD evt type 3, Tx Pwr: 127, RSSI -54 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, [DEVICE]: 6E:2A:15:B7:E6:1A (random), AD evt type 4, Tx Pwr: 127, RSSI -54 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 7 messages dropped --- 00> [DEVICE]: 07:70:87:63:82:1E (random), AD evt type 3, Tx Pwr: 127, RSSI -66 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: FA:0D:AC:D8:7B:0D (public), AD evt type 4, Tx Pwr: 127, RSSI -85 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 2E:94:E2:6F:B0:09 (random), AD evt type 3, Tx Pwr: 127, RSSI -70 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 7C:1A:F7:A7:12:0F (random), AD evt type 0, Tx Pwr: 127, RSSI -74 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 7C:1A:F7:A7:12:0F (random), AD evt type 4, Tx Pwr: 127, RSSI -73 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> 5 00> 00> [DEVICE]: 3A:22:E2:FF:55:2F (public), AD evt type 0, Tx Pwr: 127, RSSI -79 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: DE:86:9B:6D:43:F0 (random), AD evt type 0, Tx Pwr: 127, RSSI -38 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 7 messages dropped --- 00> [DEVICE]: DE:86:9B:6D:43:F0 (random), AD evt type 4, Tx Pwr: 127, RSSI -37 DF Conn App C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 51:DA:93:DC:BC:1F (random), AD evt type 3, Tx Pwr: 127, RSSI -57 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 1B:96:2D:AC:6B:19 (random), AD evt type 3, Tx Pwr: 127, RSSI -56 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 70:7F:98:CA:58:AC (random), AD evt type 3, Tx Pwr: 127, RSSI -54 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: FA:0D:AC:D8:7B:0D (public), AD evt type 0, Tx Pwr: 127, RSSI -82 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 6E:2A:15:B7:E6:1A (random), AD evt type 0, Tx Pwr: 127, RSSI -56 C:1 5 00> 00> [DEVICE]: 6E:2A:15:B7:E6:1A (random), AD evt type 4, Tx Pwr: 127, RSSI -56 C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 07:70:87:63:82:1E (random), AD evt type 3, Tx Pwr: 127, RSSI -53 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: DE:86:9B:6D:43:F0 (random), AD evt type 4, Tx Pwr: 127, RSSI -35 DF Conn App C:1 S:1 D:0 SR:1 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> --- 15 messages dropped --- 00> [DEVICE]: CB:54:B9:46:AC:76 (random), AD evt type 3, Tx Pwr: 127, RSSI -70 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 2D:D1:CF:4F:44:22 (random), AD evt type 3, Tx Pwr: 127, RSSI -86 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 51:DA:93:DC:BC:1F (random), AD evt type 3, Tx Pwr: 127, RSSI -54 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 1B:96:2D:AC:6B:19 (random), AD evt type 3, Tx Pwr: 127, RSSI -57 C:0 S:0 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (0 ms), SID: 255 00> 00> [DEVICE]: 7A:39:27:1B:CD:AB (random), AD evt type 0, Tx Pwr: 127, RSSI -89 C:1 S:1 D:0 SR:0 E:0 Prim: LE 1M, Secn: No packets, Interval: 0x0000 (Connection lost)
Peripheral is here.
00> *** Booting Zephyr OS build zephyr-v3.0.0-2055-g736520a4fef6 *** 00> 00> [ 0.383178] <inf> bt_hci_core: HW Platform: Nordic Semiconductor (0x0002) 00> [ 0.383178] <inf> bt_hci_core: HW Variant: nRF52x (0x0002) 00> [ 0.383209] <inf> bt_hci_core: Firmware: Standard Bluetooth controller (0x00) Version 3.0 Build 99 00> [ 0.383972] <inf> bt_hci_core: Identity: DE:86:9B:6D:43:F0 (random) 00> [ 0.383972] <inf> bt_hci_core: HCI: version 5.3 (0x0c) revision 0x0000, manufacturer 0x05f1 00> [ 0.384002] <inf> bt_hci_core: LMP: version 5.3 (0x0c) subver 0xffff 00> Bluetooth initialized 00> 00> Advertising successfully started 00>
The four gpio are always zero by Logical Anylazey.
what is thia problem?
