diff --git a/rtl837x_common.h b/rtl837x_common.h
index 5156603..06e4a23 100644
--- a/rtl837x_common.h
+++ b/rtl837x_common.h
@@ -105,5 +105,6 @@ void tcpip_output(void);
 void print_string_x(__xdata char *p);
 uint8_t read_flash(uint8_t bank, __code uint8_t *addr);
 void get_random_32(void);
+void read_reg_timer(uint32_t * tmr);
 
 #endif
diff --git a/rtlplayground.c b/rtlplayground.c
index bba57a4..073ca78 100644
--- a/rtlplayground.c
+++ b/rtlplayground.c
@@ -602,6 +602,20 @@ void cpy_4(__xdata uint8_t dest[], __xdata uint8_t source[])
 }
 
 
+void read_reg_timer(uint32_t * tmr)
+{
+	uint8_t * val = (uint8_t *)tmr;
+	SFR_REG_ADDR_U16 = RTL837X_REG_SEC_COUNTER;
+	SFR_EXEC_GO = SFR_EXEC_READ_REG;
+	do {
+	} while (SFR_EXEC_STATUS != 0);
+	*val++ = SFR_DATA_0;
+	*val++ = SFR_DATA_8;
+	*val++ = SFR_DATA_16;
+	*val = SFR_DATA_24;
+}
+
+
 void sds_config_mac(uint8_t sds, uint8_t mode)
 {
 	reg_read_m(RTL837X_REG_SDS_MODES);