Hi everyone!
I use ioLibrary_Driver-master to study W5100.
I config w5100 mode TCP client:
[code] int32_t loopback_tcpc_ipwan(uint8_t sn, uint8_t* buf, uint8_t* destip, uint16_t destport)
{
int32_t ret;
uint16_t size = 0;
uint8_t i, index=0, en_getip=2;
switch(getSn_SR(sn))
{
case SOCK_ESTABLISHED :
if(getSn_IR(sn) & Sn_IR_CON)
{
printf("%d:Connected to %d.%d.%d.%d : %d\r\n",sn, destip[0], destip[1], destip[2], destip[3], destport);
setSn_IR(sn,Sn_IR_CON);
}
strcpyf(buf,"GET /thaihoaicontrol/thaihoaicheckipwan.php HTTP/1.0\r\n");
strcatf(buf,"Host: www.thaihoaicenter.vn\r\n");
strcatf(buf,"Connection: close\r\n\r\n");
if(send(sn,buf,strlen(buf))<=0){
en_tcpc_update = 0;
printf("\r\n[send-error]-try again!\r\n");
break;}
printf("[SEND ok babe!]");
if((size= getSn_RX_RSR(sn)) > 0){
if(size > DATA_BUF_SIZE)
size = DATA_BUF_SIZE;
ret = recv(sn,buf,size);
if(ret <= 0){
printf("[ret <0 break]\r\n");
return ret;}
printf("\r\nret = [%d]\r\nbuf = [%s]\r\n",ret,buf);
//Lay ipwan vao bien ipwan
//xoa ipwan cu
for(i=0;i<16;i++)
ipwan[i] = NULL;
for(i=0;i< strlen(buf); i++){ //example ipwan = [192.168.1.1]
if(buf[i] ==']'){
en_getip = 0;
break;}
if(en_getip==1){
ipwan[index] = buf[i];
index++;}
if(buf[i] =='['){
en_getip=1;
index = 0;}}
if(en_getip == 0)
{
en_tcp_client = 0;
printf("\r\n[IP-WAN-new] = [%s]\r\n",ipwan);
eeprom_read_string(78,lastipwan,EEPROM_read(77));
printf("\r\n[Lastipwan-old] = [%s]\r\n", lastipwan);
if(!strcmp(ipwan,lastipwan)){
printf("\r\n[IPWAN don't change]\r\n");
en_tcpc_update = 0;
en_loop_t1=0;
}
else{
printf("\r\n[IPWAN just change]\r\n");
EEPROM_write(77,strlen(ipwan));
eeprom_write_string(78,ipwan);
en_tcpc_update = 1;}
en_tcpc_ipwan=0;
close(sn);
printf("%d:Closed\r\n",sn);
break;}
disconnect(sn) ;}
else{
printf("\r\n[Server don't respone]\r\n");
delay_us(10);}
break;
case SOCK_CLOSE_WAIT :
if((ret=disconnect(sn)) != SOCK_OK) return ret;
printf("%d:Closed\r\n",sn);
break;
case SOCK_INIT :
//printf("%d:Try to connect to the %d.%d.%d.%d : %d \r\n",sn, destip[0], destip[1], destip[2], destip[3], destport);
if( (ret = connect(sn, destip, destport)) != SOCK_OK) return ret;
break;
case SOCK_CLOSED:
close(sn);
if((ret=socket(sn,Sn_MR_TCP,destport,0x00)) != sn)
return ret;
printf("%d:TCP client Start\r\n",sn);
printf("%d:Opened\r\n",sn);
break;
default:
break;
}
return 1;
}
[/code]
When connected to my server, i send a command to get ip-wan,
[code]GET /thaihoaicontrol/thaihoaicheckipwan.php HTTP/1.0
Host: www.thaihoaicenter.vn
Connection: close
[/code]
and server returns data contain ip-wan:
[code]HTTP/1.1 200 OK
Date: Wed, 30 Dec 2015 10:11:16 GMT
Server: Apache/2
X-Powered-By: PHP/5.3.29
Vary: Accept-Encoding,User-Agent
Connection: close
Content-Type: text/html
[171.234.176.135][/code]
During data collection, not always also receive data from the server. After a few time received data, microcontroller was hangs at funciton [color=#FF0000]ret = recv(sn,buf,size);[/color] . Data is always sent and received normal by server in [color=#FF0000]mode TCP server[/color] so i think this function is not wrong.
I try to check bug, detection program couldn’t exit [color=#FF0000]while(getSn_CR(sn));[/color] stored in function [color=#FF0000]recv(sn,buf,size);[/color]
Please help me ,what is the problem ?
Thanks
