diff --git a/LoRaWAN/App/lora_app.c b/LoRaWAN/App/lora_app.c
index 41506a6..9707b1f 100644
--- a/LoRaWAN/App/lora_app.c
+++ b/LoRaWAN/App/lora_app.c
@@ -1516,7 +1516,7 @@ static void OnYunhornSTSSamplingCheckTimerEvent(void *context)
 void USER_APP_AUTO_RESPONDER_Parse(char *tlv_buf, size_t tlv_buf_size)
 {
 	uint8_t i=0, mems_ver, invalid_flag=1;
-	UTIL_MEM_set_8(outbuf,0x0, sizeof(outbuf));
+	UTIL_MEM_set_8((void*)outbuf,0x0, sizeof(outbuf));
 
 	if (((char)tlv_buf[CFG_CMD1] == 'Y') && (tlv_buf_size <=5))  // BEGIN OF *** BOARD LEVEL CONTROL OR REPORT
 	{
@@ -1571,7 +1571,7 @@ void USER_APP_AUTO_RESPONDER_Parse(char *tlv_buf, size_t tlv_buf_size)
 					APP_LOG(TS_OFF, VLEVEL_H, "\r\nRSS Measured Distance=[%u] mm \r\n", (int)sts_distance_rss_distance);
 
 					i=0;
-					memset(outbuf,0x0, sizeof(outbuf));
+					memset((void*)outbuf,0x0, sizeof(outbuf));
 					outbuf[i++] 	= (uint8_t)'D';
 					outbuf[i++] 	= (uint8_t)sts_mtmcode1;
 					outbuf[i++] 	= (uint8_t)sts_mtmcode2;
@@ -1637,7 +1637,7 @@ void USER_APP_AUTO_RESPONDER_Parse(char *tlv_buf, size_t tlv_buf_size)
 					outbuf[i++] = (uint8_t) MinorVer;
 					outbuf[i++] = (uint8_t) SubMinorVer;
 					STS_SENSOR_Upload_Message(LORAWAN_USER_APP_CTRL_REPLY_PORT, i, (uint8_t *)outbuf);
-					APP_LOG(TS_OFF, VLEVEL_M, "###### YUNHORN Report Version [ %10x ] \r\n", (char *)outbuf);
+					APP_LOG(TS_OFF, VLEVEL_M, "###### YUNHORN Report Version [ %10x ] \r\n", (uint8_t *)outbuf);
 				}
 				else
 				if ((char)tlv_buf[CFG_CMD3] == 'C') { // "YVC"   REPORT NVM STORED CONFIG PARAMETERS  "YVC"
@@ -1992,7 +1992,7 @@ void USER_APP_AUTO_RESPONDER_Parse(char *tlv_buf, size_t tlv_buf_size)
 								{
 									outbuf[i++] = (uint8_t)(sts_cfg_nvm.p[j]+0x30)&0xff;
 								}
-								APP_LOG(TS_OFF, VLEVEL_L, "###### RSS Simple CFG=%s\r\n",*outbuf);
+								APP_LOG(TS_OFF, VLEVEL_L, "###### RSS Simple CFG=%s\r\n",(uint8_t*)outbuf);
 
 								// Step 2: Save valid config to NVM
 								sts_cfg_nvm.mtmcode1 = sts_mtmcode1;