ARMmbed
/
mbed-os
mirror of https://github.com/ARMmbed/mbed-os.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Fix Beacon Time On Air Computation 

Beacon time on air  computation bandwidth param was hard coded to 500 KHz.  Now  it is read from the phy bandwidths table.
feature-lorawan-1-1
Unknown 2019-07-09 16:16:51 -04:00 committed by Antti Kauppila
parent 00dc81114d
commit 65e1e9c222
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
features/lorawan/lorastack/phy/LoRaPHY.cpp
View File

@ -44,7 +44,6 @@ SPDX-License-Identifier: BSD-3-Clause
#define BEACON_PREAMBLE_LENGTH 10.0f
#define BEACON_COMMON_FRAME_SIZE 15
#define BEACON_BANDWIDTH 500000
#define BEACON_CODING_RATE 1
#define BEACON_CRC_ON false
#define BEACON_FIXED_LEN true
@ -1637,16 +1636,19 @@ uint32_t LoRaPHY::compute_beacon_time_on_air()
{
uint8_t beacon_length;
uint8_t phy_dr;
uint32_t bw;
beacon_length = BEACON_COMMON_FRAME_SIZE + phy_params.beacon.rfu1_size +
phy_params.beacon.rfu2_size;
// Read the physical datarate from the datarates table
phy_dr = ((uint8_t *)phy_params.datarates.table)[phy_params.beacon.datarate];
// Read beacon datarate bandwidth from the bandwidths table
bw = ((uint32_t *)phy_params.bandwidths.table)[phy_params.beacon.datarate];
return _radio->lora_time_on_air(BEACON_PREAMBLE_LENGTH,
phy_dr,
BEACON_BANDWIDTH,
bw,
BEACON_CODING_RATE,
BEACON_CRC_ON,
BEACON_FIXED_LEN,