Ìîäåì ðàáîòàåò áåç àïïàðàòíîãî óïðàâëåíèÿ ïîòîêîì (RTS è CTS). Óïðàâëÿþ ìîäåìîì ïîñðåäñòâîì ÀÐÌ ïðîöåññîðà. Âåñü îáìåí ìåæäó ïðîöåññîðîì è ìîäåìîì "ïîäñëóøèâàþ" òåðìèíàëüíîé ïðîãðàììîé, ïîäêëþ÷åííîé ÷åðåç USART-USB ïåðåõîäíèê. Âåðñèÿ ïðîøèâêè ìîäåìà 20.
Ìîäåì èíèöèàëèçèðóþ âñå â ïîðÿäêå, ðåãèñòðàöèÿ ïðîõîäèò, GPRS âêëþ÷àåòñÿ. Ïîäêëþ÷àþñü ê ñåðâåðó êàê TCP êëèåíò, èñïîëüçóÿ âñòðîåííûé TCP/IP ñòåê, âñå ïðîõîäèò õîðîøî. Ïîëó÷àþ CONNECT, îòêðûâàþ ñîêåò è ïîñûëàþ çàïðîñ ôàéëà ÷åðåç GET çàãîëîâîê, â îòâåò íà êîòîðûé, ñåðâåð íà÷èíàåò ïåðåäàâàòü ìíå äàííûå.
Ïðîáëåìà ñîñòîèò â òîì, ÷òî ïîäêëþ÷èâøèñü ê WEB ñåðâåðó ïî HTTP ïðîòîêîëó è ïîñëàâ çàïðîñ GET, ó ìåíÿ ìîäåì íå âñåãäà ïðèíèìàåò âñå ïîñëàííûå ñåðâåðîì äàííûå, ðàçìåð êîòîðûõ ñîñòàâëÿåò îêîëî 100 êèëîáàéò.  íà÷àëå ïðèåìà äàííûå ïîñòóïàþò íîðìàëüíî, íî ïîñëå ïðèíÿòèÿ 10-20êáàéò, íà÷èíàþòñÿ ïðèîñòàíîâêè ïåðåäà÷è. Î÷åíü ÷àñòî ïðîèñõîäèò ðàçðûâ ñîåäèíåíèÿ ñ âûäà÷åé SHUTDOWN. Çàêà÷èâàíèå ôàéëà èäåò íå ðàâíîìåðíî, áûâàþò îñòàíîâêè íà 1-10 ñåêóíä. Èíîãäà âî âðåìÿ íîðìàëüíîãî ïðèåìà ïðîèñõîäèò îñòàíîâêà ïåðåäà÷è äàííûõ ìîäåìîì è áîëåå îò ìîäåìà äàííûå íå ïðèõîäÿò, â òîì ÷èñëå è SHUTDOWN. Èç 20 ïðîèçâåäåííûõ ñîåäèíåíèé ñ ïåðåäà÷åé äàííûõ, óñïåøíûìè ÿâëÿþòñÿ îêîëî 2 ñîåäèíåíèé, â îñòàëüíûõ ñëó÷àÿõ ïðîèñõîäèò ðàçðûâ ñîåäèíåíèÿ è ìîäåì âûäàâàë SHUTDOWN.
Ñèì êàðòó èñïîëüçóþ îïåðàòîðà Beeline. Ïîäñêàæèòå, â ÷åì ìîæåò çàêëþ÷àòüñÿ äàííàÿ ïðîáëåìà?
Ç.Û. Ïðàâèëüíîñòü GET çàãîëîâêîâ ïîñûëàåìûõ íà ñåðâåð ïðîâåðåíà ÷åðåç òåðìèíàëüíóþ ïðîãðàììó, ñåðâåð âñå âðåìÿ êîððåêòíî îòâå÷àåò.
Òàêæå ïðèëàãàþ ëîã îáìåíà äàííûìè ìåæäó ìîäåìîì è ìèêðîêîíòðîëëåðîì.
Êîä
AT+CMEE=1
OK
AT+CFUN=1
OK
+CREG: 1
AT+CREG?
+CREG: 1,1
OK
*PSSTK: "SETUP MENU",1,2,"€ 8; 0 9 =ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ",255,255,1,0,0,8
AT+WIPCFG=1
OK
AT+WIPCFG?
+WIPCFG: 0,64
+WIPCFG: 1,0
+WIPCFG: 2,60
+WIPCFG: 3,0
+WIPCFG: 4,536
+WIPCFG: 5,0
+WIPCFG: 12,0
+WIPCFG: 13,0
+WIPCFG: 14,0
OK
AT+WIPBR?
OK
AT+WIPBR=1,6
OK
AT+WIPBR=2,6,11,"internet.beeline.ru"
OK
AT+WIPBR=2,6,0,"beeline"
OK
AT+WIPBR=2,6,1,"beeline"
OK
AT+WIPBR=4,6,0
OK
AT+WIPBR=3,6,15
+WIPBR: 6,15,"10.207.242.200"
OK
AT+WIPCREATE=2,1," sitename.ru",80
OK
+WIPREADY: 2,1
AT+WIPDATA=2,1,1
CONNECT
GET http://sitename.ru/ file.bin HTTP/1.0
Host: sitename.ru
HTTP/1.1 200 OK
Date: Sat, 25 Feb 2012 06:01:51 GMT
Server: Apache/1.3.34 (Unix) mod_deflate/1.0.21 PHP/5.2.17
Last-Modified: Sat, 25 Feb 2012 05:33:23 GMT
ETag: "588149-20000-4f4872a3"
Accept-Ranges: bytes
Content-Length: 131072
Connection: close
Content-Type: application/octet-stream
Òóò íà÷èíàþò èäòè äâîè÷íûå äàííûå (ëèáî îáû÷íûé òåêñò â çàâèñèìîñòè îò çàïðàøèâàåìîãî ôàéëà), íî ÷àñòî äî êîíöà äàííûå òàê è íå äîõîäÿò.
SHUTDOWN
+WIPPEERCLOSE: 2,1
OK
OK
AT+CFUN=1
OK
+CREG: 1
AT+CREG?
+CREG: 1,1
OK
*PSSTK: "SETUP MENU",1,2,"€ 8; 0 9 =ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ",255,255,1,0,0,8
AT+WIPCFG=1
OK
AT+WIPCFG?
+WIPCFG: 0,64
+WIPCFG: 1,0
+WIPCFG: 2,60
+WIPCFG: 3,0
+WIPCFG: 4,536
+WIPCFG: 5,0
+WIPCFG: 12,0
+WIPCFG: 13,0
+WIPCFG: 14,0
OK
AT+WIPBR?
OK
AT+WIPBR=1,6
OK
AT+WIPBR=2,6,11,"internet.beeline.ru"
OK
AT+WIPBR=2,6,0,"beeline"
OK
AT+WIPBR=2,6,1,"beeline"
OK
AT+WIPBR=4,6,0
OK
AT+WIPBR=3,6,15
+WIPBR: 6,15,"10.207.242.200"
OK
AT+WIPCREATE=2,1," sitename.ru",80
OK
+WIPREADY: 2,1
AT+WIPDATA=2,1,1
CONNECT
GET http://sitename.ru/ file.bin HTTP/1.0
Host: sitename.ru
HTTP/1.1 200 OK
Date: Sat, 25 Feb 2012 06:01:51 GMT
Server: Apache/1.3.34 (Unix) mod_deflate/1.0.21 PHP/5.2.17
Last-Modified: Sat, 25 Feb 2012 05:33:23 GMT
ETag: "588149-20000-4f4872a3"
Accept-Ranges: bytes
Content-Length: 131072
Connection: close
Content-Type: application/octet-stream
Òóò íà÷èíàþò èäòè äâîè÷íûå äàííûå (ëèáî îáû÷íûé òåêñò â çàâèñèìîñòè îò çàïðàøèâàåìîãî ôàéëà), íî ÷àñòî äî êîíöà äàííûå òàê è íå äîõîäÿò.
SHUTDOWN
+WIPPEERCLOSE: 2,1
OK