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diff --git a/libloragw/inc/loragw_hal.h b/libloragw/inc/loragw_hal.h
index 1516b65..24c5969 100644
--- a/libloragw/inc/loragw_hal.h
+++ b/libloragw/inc/loragw_hal.h
@@ -302,6 +312,11 @@ struct lgw_pkt_tx_s {
/* -------------------------------------------------------------------------- */
/* --- PUBLIC FUNCTIONS PROTOTYPES ------------------------------------------ */
+/**
+ * @brief Configure the lora synch word
+ * @param word for synch
+ */
+void lgw_conf_lora_synch_word(uint8_t word);
/**
@brief Configure an RF chain (must configure before start)
diff --git a/libloragw/src/loragw_hal.c b/libloragw/src/loragw_hal.c
index 5dbdf45..d0fe288 100644
--- a/libloragw/src/loragw_hal.c
+++ b/libloragw/src/loragw_hal.c
@@ -827,6 +851,19 @@ void lgw_constant_adjust(void) {
/* -------------------------------------------------------------------------- */
/* --- PUBLIC FUNCTIONS DEFINITION ------------------------------------------ */
+void lgw_conf_lora_synch_word(uint8_t word) {
+ uint8_t peak1 = word >> 4;
+ uint8_t peak2 = word & 0x0F;
+
+ lgw_reg_w(LGW_FRAME_SYNCH_PEAK1_POS, peak1); /* default 1 */
+ lgw_reg_w(LGW_FRAME_SYNCH_PEAK2_POS, peak2); /* default 2 */
+ lgw_reg_w(LGW_MBWSSF_FRAME_SYNCH_PEAK1_POS, peak1); /* default 1 */
+ lgw_reg_w(LGW_MBWSSF_FRAME_SYNCH_PEAK2_POS, peak2); /* default 2 */
+ lgw_reg_w(LGW_TX_FRAME_SYNCH_PEAK1_POS, peak1); /* default 1 */
+ lgw_reg_w(LGW_TX_FRAME_SYNCH_PEAK2_POS, peak2); /* default 2 */
+}
+
+
int lgw_rxrf_setconf(uint8_t rf_chain, struct lgw_conf_rxrf_s conf) {
/* check if the concentrator is running */
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