SHUstriK Posted August 22, 2011 Share Posted August 22, 2011 Основной вопрос: как NP5110 "режет" данные, поступающие с rs232 в пакеты, если данных меньше 1Кб, нет Delimiter'a, размер пакета - 0, интервал - 0? Побудила меня создать тему следующая проблема: Необходимо управлять коммерческим оборудованием с использование коммерческого ПО. При подключении с ПК и железного COM порта, обмен сообщений выглядит так: 0 0.11484504 ItmCit.exe IRP_MJ_CREATE Serial2 SUCCESS Options: Open 1 0.00000531 ItmCit.exe IOCTL_SERIAL_SET_WAIT_MASK Serial2 SUCCESS Mask: RXCHAR CTS ERR 2 0.00000223 ItmCit.exe IOCTL_SERIAL_SET_QUEUE_SIZE Serial2 SUCCESS InSize: 4096 OutSize: 4096 3 0.00000335 ItmCit.exe IOCTL_SERIAL_PURGE Serial2 SUCCESS Purge: TXABORT RXABORT TXCLEAR RXCLEAR 4 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_BAUD_RATE Serial2 SUCCESS 5 0.00000223 ItmCit.exe IOCTL_SERIAL_GET_LINE_CONTROL Serial2 SUCCESS 6 0.00000223 ItmCit.exe IOCTL_SERIAL_GET_CHARS Serial2 SUCCESS 7 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_HANDFLOW Serial2 SUCCESS 8 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_BAUD_RATE Serial2 SUCCESS 9 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_LINE_CONTROL Serial2 SUCCESS 10 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_CHARS Serial2 SUCCESS 11 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_HANDFLOW Serial2 SUCCESS 12 0.00376109 ItmCit.exe IOCTL_SERIAL_SET_BAUD_RATE Serial2 SUCCESS Rate: 115200 13 0.00297105 ItmCit.exe IOCTL_SERIAL_SET_RTS Serial2 SUCCESS 14 0.00298893 ItmCit.exe IOCTL_SERIAL_SET_DTR Serial2 SUCCESS 15 0.00394324 ItmCit.exe IOCTL_SERIAL_SET_LINE_CONTROL Serial2 SUCCESS StopBits: 1 Parity: NONE WordLength: 8 16 0.00294032 ItmCit.exe IOCTL_SERIAL_SET_CHAR Serial2 SUCCESS EOF:0 ERR:0 BRK:0 EVT:0 XON:11 XOFF:13 17 0.00698720 ItmCit.exe IOCTL_SERIAL_SET_HANDFLOW Serial2 SUCCESS Shake:1 Replace:40 XonLimit:2048 XoffLimit:512 18 0.00000335 ItmCit.exe IOCTL_SERIAL_GET_TIMEOUTS Serial2 SUCCESS 19 0.00000196 ItmCit.exe IOCTL_SERIAL_SET_TIMEOUTS Serial2 SUCCESS RI:100 RM:0 RC:1000 WM:0 WC:1000 20 0.00000559 ItmCit.exe IOCTL_SERIAL_SET_WAIT_MASK Serial2 SUCCESS Mask: RXCHAR CTS ERR 21 0.00765125 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK Serial2 SUCCESS 22 0.00102331 ItmCit.exe IRP_MJ_WRITE Serial2 SUCCESS Length 6: 01 01 03 10 03 10 23 0.00000447 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 24 0.00000419 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 25 0.00000503 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 1: 01 26 0.00000223 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 27 0.00000223 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 28 0.00188879 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 3: 01 02 16 29 0.00000419 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 30 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 31 0.00000419 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 1: 14 32 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 33 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 34 0.00883073 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 1: 01 35 0.00070959 ItmCit.exe IRP_MJ_WRITE Serial2 SUCCESS Length 47: 01 01 2C 24 01 03 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0B 36 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 37 0.00000447 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 38 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 39 0.00089732 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 3: 01 02 26 40 0.00000391 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 41 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 42 0.00000419 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 1: 24 43 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 44 0.00000223 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 45 0.00286657 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 1: 01 46 0.00000475 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 47 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 48 0.00089816 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 3: 01 2C 34 49 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 50 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 51 0.00393123 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 43: 01 04 01 00 00 00 01 03 07 41 53 57 31 30 35 44 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 07 C6 01 01 02 1B 12 43 45 54 00 B4 52 0.00000475 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 53 0.00085123 ItmCit.exe IRP_MJ_WRITE Serial2 SUCCESS Length 5: 01 01 02 36 34 54 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 55 0.00000223 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 56 0.00000531 ItmCit.exe IRP_MJ_READ Serial2 SUCCESS Length 1: FF 57 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 58 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 59 0.99992150 ItmCit.exe IRP_MJ_READ Serial2 TIMEOUT Length 0: 60 0.00000531 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 61 0.00000475 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK Serial2 SUCCESS 62 0.00000223 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 63 0.99988183 ItmCit.exe IRP_MJ_READ Serial2 TIMEOUT Length 0: 64 0.00000559 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS Serial2 SUCCESS 65 0.00000000 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK Serial2 При подключении через MOXA (np Firmware version : 2.3.15 Build 11033111, NPORT Admin 1.16 build 11021514 ) tcpdump по порту 950: SEND: 01 01 03 10 04 17 ...... RECV: 01 01 02 16 14 ..... SEND: 01 01 2c 24 01 03 01 00 00 00 00 00 00 00 00 00 ..,$.... ........ SEND: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ........ ........ SEND: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0b ........ ....... RECV: 01 01 02 26 ...& RECV: 24 $ RECV: 01 01 2c 34 01 04 01 00 ..,4.... RECV: 00 01 03 07 41 53 57 31 30 34 44 00 ....ASW1 04D. RECV: 00 00 00 00 00 00 00 00 00 07 c6 01 ........ .... RECV: 01 02 29 09 43 45 54 00 67 ..).CET. g Данные передаются от устройства одни и те же (небольшие отличия, судя по всему, вызваны разным номером порта), но при работе через NPORT программе не отправляет "01 01 02 36 34", судя по всему она не понимает что ей приходит, соответственно, не работает ничего. Отличия только в компоновке данных от MOXA. Link to comment
SHUstriK Posted August 23, 2011 Author Share Posted August 23, 2011 Поставил NPort Windows Driver Manager, появился COM порт в диспетчере задач и получилось снять трасировку с COM порта: 0 0.05705222 ItmCit.exe IRP_MJ_CREATE NPtdrv24 SUCCESS Options: Open 1 0.00000503 ItmCit.exe IOCTL_SERIAL_SET_WAIT_MASK NPtdrv24 SUCCESS Mask: RXCHAR CTS ERR 2 0.00000223 ItmCit.exe IOCTL_SERIAL_SET_QUEUE_SIZE NPtdrv24 SUCCESS InSize: 4096 OutSize: 4096 3 0.03114334 ItmCit.exe IOCTL_SERIAL_PURGE NPtdrv24 SUCCESS Purge: TXABORT RXABORT TXCLEAR RXCLEAR 4 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_BAUD_RATE NPtdrv24 SUCCESS 5 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_LINE_CONTROL NPtdrv24 SUCCESS 6 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_CHARS NPtdrv24 SUCCESS 7 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_HANDFLOW NPtdrv24 SUCCESS 8 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_BAUD_RATE NPtdrv24 SUCCESS 9 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_LINE_CONTROL NPtdrv24 SUCCESS 10 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_CHARS NPtdrv24 SUCCESS 11 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_HANDFLOW NPtdrv24 SUCCESS 12 0.01545224 ItmCit.exe IOCTL_SERIAL_SET_BAUD_RATE NPtdrv24 SUCCESS Rate: 115200 13 0.01555561 ItmCit.exe IOCTL_SERIAL_SET_RTS NPtdrv24 SUCCESS 14 0.01558997 ItmCit.exe IOCTL_SERIAL_SET_DTR NPtdrv24 SUCCESS 15 0.01558550 ItmCit.exe IOCTL_SERIAL_SET_LINE_CONTROL NPtdrv24 SUCCESS StopBits: 1 Parity: NONE WordLength: 8 16 0.00000335 ItmCit.exe IOCTL_SERIAL_SET_CHAR NPtdrv24 SUCCESS EOF:0 ERR:0 BRK:0 EVT:0 XON:11 XOFF:13 17 0.06244313 ItmCit.exe IOCTL_SERIAL_SET_HANDFLOW NPtdrv24 SUCCESS Shake:1 Replace:40 XonLimit:0 XoffLimit:0 18 0.00000307 ItmCit.exe IOCTL_SERIAL_GET_TIMEOUTS NPtdrv24 SUCCESS 19 0.00000196 ItmCit.exe IOCTL_SERIAL_SET_TIMEOUTS NPtdrv24 SUCCESS RI:100 RM:0 RC:1000 WM:0 WC:1000 20 0.00000531 ItmCit.exe IOCTL_SERIAL_SET_WAIT_MASK NPtdrv24 SUCCESS Mask: RXCHAR CTS ERR 21 0.01143916 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 22 0.00000782 ItmCit.exe IRP_MJ_WRITE NPtdrv24 SUCCESS Length 6: 01 01 03 10 04 17 23 0.00000335 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 24 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 25 0.00000335 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 01 26 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 27 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 28 0.00000223 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 3: 00 02 16 29 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 30 0.00104343 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 31 0.00000279 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 32 0.00000279 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 14 33 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 34 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 35 0.98684134 ItmCit.exe IRP_MJ_READ NPtdrv24 TIMEOUT Length 0: 36 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 37 0.00000475 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 38 4.01143665 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 39 0.00000782 ItmCit.exe IRP_MJ_WRITE NPtdrv24 SUCCESS Length 6: 01 01 03 10 04 17 40 0.00000307 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 41 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 42 0.00000307 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 01 43 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 44 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 45 0.00000223 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 3: 00 02 16 46 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 47 0.00107360 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 48 0.00000279 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 49 0.00000279 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 14 50 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 51 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 52 0.98715423 ItmCit.exe IRP_MJ_READ NPtdrv24 TIMEOUT Length 0: 53 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 54 0.00000503 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 55 4.01172244 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 56 0.00000782 ItmCit.exe IRP_MJ_WRITE NPtdrv24 SUCCESS Length 6: 01 01 03 10 04 17 57 0.00009945 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 58 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 59 0.00000335 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 01 60 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 61 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 62 0.00000251 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 3: 01 02 16 63 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 64 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 65 0.00110433 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 14 66 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 67 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 68 0.07327188 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 01 69 0.00000866 ItmCit.exe IRP_MJ_WRITE NPtdrv24 SUCCESS Length 47: 01 01 2C 24 01 03 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0B 70 0.00000279 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 71 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 72 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 73 0.00000279 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 3: 01 02 26 74 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 75 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 76 0.00110405 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 24 77 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 78 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 79 0.00290763 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 01 80 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 81 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 82 0.00000279 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 3: 01 2C 34 83 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 84 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 85 0.11227460 ItmCit.exe IRP_MJ_READ NPtdrv24 TIMEOUT Length 38: 01 04 01 00 00 01 03 07 41 53 57 31 30 35 44 00 00 00 00 00 00 00 00 00 00 00 90 5C 50 20 80 89 68 54 14 15 10 D9 86 0.00000391 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 87 0.00000503 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 88 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 89 0.99983992 ItmCit.exe IRP_MJ_READ NPtdrv24 TIMEOUT Length 0: 90 0.00000391 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 91 8.89298975 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 92 0.00000391 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 93 0.00000335 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 01 94 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 95 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 96 0.00000223 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 3: 01 2C 34 97 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 98 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 99 0.10672474 ItmCit.exe IRP_MJ_READ NPtdrv24 TIMEOUT Length 37: 01 04 01 00 00 01 03 07 41 53 57 31 30 35 44 00 00 00 00 00 00 00 00 00 00 07 C6 01 01 00 89 68 54 14 15 10 D9 100 0.00000391 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 101 0.00000503 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 102 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 103 0.99987037 ItmCit.exe IRP_MJ_READ NPtdrv24 TIMEOUT Length 0: 104 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 105 8.89900420 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 106 0.00000391 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 107 0.00000335 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 01 108 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 109 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 110 0.00000251 ItmCit.exe IRP_MJ_READ NPtdrv24 SUCCESS Length 3: 01 2C 34 111 0.00000168 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 112 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 113 0.10080248 ItmCit.exe IRP_MJ_READ NPtdrv24 TIMEOUT Length 38: 01 04 01 00 00 01 03 07 41 53 57 31 30 35 44 00 00 00 00 00 00 00 00 00 00 00 07 C6 01 01 00 89 68 54 14 15 10 D9 114 0.00000363 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 115 0.00000475 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 SUCCESS 116 0.00000196 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 117 0.99986199 ItmCit.exe IRP_MJ_READ NPtdrv24 TIMEOUT Length 0: 118 0.00000391 ItmCit.exe IOCTL_SERIAL_GET_COMMSTATUS NPtdrv24 SUCCESS 119 39.21990504 ItmCit.exe IOCTL_SERIAL_WAIT_ON_MASK NPtdrv24 CANCELLED 120 0.00000475 ItmCit.exe IRP_MJ_CLEANUP NPtdrv24 SUCCESS 121 0.08793771 ItmCit.exe IRP_MJ_CLOSE NPtdrv24 SUCCESS Из неё видно, что программа отвечает, когда идёт: IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 01 IRP_MJ_READ NPtdrv24 SUCCESS Length 3: 01 02 16 IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 14 IRP_MJ_READ NPtdrv24 SUCCESS Length 1: 01 Когда же "IRP_MJ_READ NPtdrv24 TIMEOUT", то программа не отвечает. Что может вызывать "IRP_MJ_READ NPtdrv24 TIMEOUT" вместо "IRP_MJ_READ NPtdrv24 SUCCESS"? Link to comment
Komantsev Posted August 24, 2011 Share Posted August 24, 2011 Добрый день, Прошу прощения за поздний ответ. Да, похоже, что NPort "режет" данные на несколько TCP-пакетов. Я думаю, таймаут чтения возник именно из-за длинного пакета (NPort разрезал его на части, и программа не дождалась сообщения целиком). Вообще, если в NPort не заданы параметры Delimiter / Force Tx / Packet Length, то NPort делает размеры пакетов на свое усмотрение (от 4 до 128 байт в зависимости от скорости, нагруженности процессора, своего настроения итп.). Четкого алгоритма нет. Как правило, помогает выставление Force Tx Timeout = 2 мс. Подробнее - здесь. Попробуйте, заработает ли. Link to comment
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now