B20/BT2.1
User Guide
Release r03
www.stollmann.de
Page 3 of 38
6.2
RSSI Poll Time (S412) ................................................................................ 23
7
OBEX File Transfer ......................................................................................... 24
7.1
OPPC Call Request .................................................................................... 24
7.2
OPP Frame Structure ................................................................................. 24
7.3
OPP Frame Transmission ........................................................................... 25
7.3.1
OPP Data Flow Control ..................................................................... 25
7.3.2
OPP Frame Structure Example for VCARD....................................... 25
7.3.3
OPP Frame Structure Example for Text File ..................................... 26
7.3.4
OPP Frame Structure Example for Image/jpg ................................... 26
7.4
OPP Status Messages ................................................................................ 26
7.5
OPPC Transmission Examples with B20 .................................... 27
7.5.1
Successful OPPC Transfer ............................................................... 28
7.5.2
Failed OPPC Transfer ....................................................................... 29
7.5.3
Local OPPC Communication Error .................................................... 30
8
Communication with Apple Devices ................................................................. 31
9
Startup Timing ................................................................................................. 32
10
Firmware Upgrade ........................................................................................... 33
10.1
Device Firmware Upgrade via Serial Interface ............................................ 33
10.1.1
Prerequisites for Device Firmware Upgrade ...................................... 33
10.1.2
Stollmann B20 Updater ..................................................... 34
10.2
Firmware Upgrade via SPI .......................................................................... 35
10.2.1
Installation ......................................................................................... 35
10.2.2
Upgrade Procedure ........................................................................... 35
10.3
Troubleshooting .......................................................................................... 37
11
History ............................................................................................................. 38
