| /* |
| * Copyright (c) 2018-2019 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /* Range Delay |
| * Refer to BT Spec v5.1 Vol.6, Part B, Section 4.2.3 Range Delay |
| * "4 / 1000" is an approximation of the propagation time in us of the |
| * signal to travel 1 meter. |
| */ |
| #define RANGE_DISTANCE 1000 /* meters */ |
| #define RANGE_DELAY_US (2 * RANGE_DISTANCE * 4 / 1000) |
| |
| /* This is a compensation of delay between PPI task START and timer start counting. |
| * HCTO is a timer used to stop Radio peripheral in receive mode if packet address was not |
| * received. |
| */ |
| #define HCTO_START_DELAY_US 1U |
| |
| static inline uint32_t addr_us_get(uint8_t phy) |
| { |
| switch (phy) { |
| default: |
| case BIT(0): |
| return 40; |
| case BIT(1): |
| return 24; |
| case BIT(2): |
| return 376; |
| } |
| } |
