Hello,
I installed RAK5146 firmware from following RAK repo : https://github.com/RAKWireless/rak_common_for_gateway/blob/master/README.md
The PF works fine.
I wanted to change the default private SYNC WORD (0x12) of RAK5146 module.
In source code, I found the following function :
int sx1302_lora_syncword(bool public, uint8_t lora_service_sf)
{
int err = LGW_REG_SUCCESS;
/* Multi-SF modem configuration */
DEBUG_MSG("INFO: configuring LoRa (Multi-SF) SF5->SF6 with syncword PRIVATE (0x12)\n");
err |= lgw_reg_w(SX1302_REG_RX_TOP_FRAME_SYNCH0_SF5_PEAK1_POS_SF5, 2);
err |= lgw_reg_w(SX1302_REG_RX_TOP_FRAME_SYNCH1_SF5_PEAK2_POS_SF5, 4);
err |= lgw_reg_w(SX1302_REG_RX_TOP_FRAME_SYNCH0_SF6_PEAK1_POS_SF6, 2);
err |= lgw_reg_w(SX1302_REG_RX_TOP_FRAME_SYNCH1_SF6_PEAK2_POS_SF6, 4);
if (public == true)
{
DEBUG_MSG("INFO: configuring LoRa (Multi-SF) SF7->SF12 with syncword PUBLIC (0x34)\n");
err |= lgw_reg_w(SX1302_REG_RX_TOP_FRAME_SYNCH0_SF7TO12_PEAK1_POS_SF7TO12, 6);
err |= lgw_reg_w(SX1302_REG_RX_TOP_FRAME_SYNCH1_SF7TO12_PEAK2_POS_SF7TO12, 8);
}
else
{
DEBUG_MSG("INFO: configuring LoRa (Multi-SF) SF7->SF12 with syncword PRIVATE (0x12)\n");
err |= lgw_reg_w(SX1302_REG_RX_TOP_FRAME_SYNCH0_SF7TO12_PEAK1_POS_SF7TO12, 2);
err |= lgw_reg_w(SX1302_REG_RX_TOP_FRAME_SYNCH1_SF7TO12_PEAK2_POS_SF7TO12, 4);
}
return err;
}
The registers used in this function have defined in loragw_reg.h as follow :
#define SX1302_REG_RX_TOP_FRAME_SYNCH0_SF5_PEAK1_POS_SF5 574
#define SX1302_REG_RX_TOP_FRAME_SYNCH1_SF5_PEAK2_POS_SF5 575
#define SX1302_REG_RX_TOP_FRAME_SYNCH0_SF6_PEAK1_POS_SF6 576
#define SX1302_REG_RX_TOP_FRAME_SYNCH1_SF6_PEAK2_POS_SF6 577
#define SX1302_REG_RX_TOP_FRAME_SYNCH0_SF7TO12_PEAK1_POS_SF7TO12 578
#define SX1302_REG_RX_TOP_FRAME_SYNCH1_SF7TO12_PEAK2_POS_SF7TO12 579
How to modify the previous function to configure custom private sync into SX1303 chip ?
THX