B20/BT2.1
User Guide
Release r03
www.stollmann.de
Page 25 of 38
7.3 OPP Frame Transmission
The B20 is able to transmit data frames with different object types like:
vCal
vCard
vMsg
vNote
files like text files, images, etc.
7.3.1 OPP Data Flow Control
During a OPP frame transmission the B20 supports the serial hardware flow
control (RTS/CTS).
Please note to control the serial status line “UART_RTS“
(pin 24) of the B20 module in case of an active flow control situation.
If the application does not react to the serial CTS status line of the B20
module some data of the OPP frame will get lost.
The following examples will give an overview about the object specific frame structure.
7.3.2 OPP Frame Structure Example for VCARD
Length
00000284
Filename
vcard_Mustermann.vcf
MIME Type
text/x-vcard
Data
BEGIN:VCARD
VERSION:3.0
N:Mustermann;Max
FN:Max Mustermann
ORG:Wikipedia
URL:http://de.wikipedia.org/
EMAIL;TYPE=INTERNET:[email protected]
TEL;TYPE=voice,work,pref:+49 1234 56788
ADR;TYPE=intl,work,postal,parcel:;;Musterstraße 1;Musterstadt; ;12345;
Germany
END:VCARD
BEGIN:VCARD
VERSION:3.0
N:Mustermann;Max
FN:Max Mustermann
ORG:Wikipedia
URL:http://de.wikipedia.org/
EMAIL;TYPE=INTERNET:[email protected]
TEL;TYPE=voice,work,pref:+49 1234 56788
ADR;TYPE=intl,work,postal,parcel:;;Musterstraße
1;Musterstadt;;12345;Germany
END:VCARD
