Gude HTTP over serial: Unterschied zwischen den Versionen

Aktuelle Version vom 30. Mai 2014, 15:17 Uhr

HTTP over Serial

offers the EPC HTTP Interface over serial interface

Serial interface Paramaters

115200 8N1
- 115200 Baud
- 8bits
- no parity
- one stop bit

Packet format:

[STX][message-string][ETX][CRX]
- [STX] start of text, (0x02)
- [message string] (CGI in, JSON out)
- [ETX] end of text (0x03)
- CRC: 2 bytes xmodem CRC

Demo Application

hosd (Http Over Serial Demo)
- Win32 Download
- Qt/Cpp Sources

Example 1:

 hosd.exe --port com1 --cgi "statusjsn.js?components=16384&svt=1&svi=1&svf=1&brief=1"

 request -> [STX] statusjsn.js?components=16384&svt=1&svi=1&svf=1&brief=1 [ETX] [CRC:0x5d49]
 answer  <- [STX] { "sensor_values":[[[1,1,null,1],[[236.900]]]],"eof":1 } [ETX] [CRC:0xa06a]
 Total messages: 1

Example 2:

 ./hosd --port /dev/ttyS0 --cgi "statusjsn.js?components=16384&svt=1&svi=1&svf=1&brief=1" --batch | python -m json.tool

 {
     "eof": 1,
     "sensor_values": [
         [
             [
                 1,
                 1,
                 null,
                 1
             ],
             [
                 [
                     236.75
                 ]
             ]
         ]
     ]
 }

@@ Zeile 2: / Zeile 2: @@
 * offers the [[EPC HTTP Interface]] over serial interface
-Paket-Format:
+Serial interface Paramaters
+* 115200 8N1
+** 115200 Baud
+** 8bits
+** no parity
+** one stop bit
+Packet format:
 * [STX][message-string][ETX][CRX]
 ** [STX] start of text, (0x02)
-** message string (CGI in, JSON out)
+** [message string] (CGI in, JSON out)
 ** [ETX] end of text (0x03)
-** CRC: 2 bytes little endian xmodem CRC
+** CRC: 2 bytes xmodem CRC
+Demo Application
+* hosd (Http Over Serial Demo)
+** [[media:Http Over Serial.zip|Win32 Download]]
+** [[media:Hosd-0.1.0.tar.gz|Qt/Cpp Sources]]
+Example 1:
+  hosd.exe --port com1 --cgi "statusjsn.js?components=16384&svt=1&svi=1&svf=1&brief=1"
+  request -> [STX] statusjsn.js?components=16384&svt=1&svi=1&svf=1&brief=1 [ETX] [CRC:0x5d49]
+  answer  <- [STX] { <nowiki>"sensor_values":[[[1,1,null,1],[[236.900]]]]</nowiki>,"eof":1 } [ETX] [CRC:0xa06a]
+  Total messages: 1
+Example 2:
+  ./hosd --port /dev/ttyS0 --cgi "statusjsn.js?components=16384&svt=1&svi=1&svf=1&brief=1" --batch | python -m json.tool
+  {
+      "eof": 1,
+      "sensor_values": [
+          [
+              [
+,
+,
+                  null,
+              ],
+              [
+                  [
+.75
+                  ]
+              ]
+          ]
+      ]
+  }

Gude HTTP over serial: Unterschied zwischen den Versionen

Aktuelle Version vom 30. Mai 2014, 15:17 Uhr

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