Gude HTTP over serial: Unterschied zwischen den Versionen
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Mb (Diskussion | Beiträge) |
Mb (Diskussion | Beiträge) |
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| (Eine dazwischenliegende Version desselben Benutzers wird nicht angezeigt) | |||
| Zeile 17: | Zeile 17: | ||
** [ETX] end of text (0x03) | ** [ETX] end of text (0x03) | ||
** CRC: 2 bytes 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: | 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] | request -> [STX] statusjsn.js?components=16384&svt=1&svi=1&svf=1&brief=1 [ETX] [CRC:0x5d49] | ||
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)
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
]
]
]
]
}