User Manual
Version 1.2
2017-12-10
ConBee
– USB Dongle
www.dresden-elektronik.de
Page 27 of 33
Figure 3: USB Dongle program header position (default not assembled)
Note:
Improper handling in respect of erasing or overwriting the MCU internal flash
or EEPROM completely or in parts may result in an unusable USB Dongle
unit. Modification of the pre-allocated EEPROM memory sections or removal
of the pre-installed bootloader will irreversibly preclude restoring, booting or
upgrading the shipping firmware at all. dresden elektronik will not support such
modifications (see
Section 5.3
for details).
8.2.
Assemble the trace header
The trace header provides the microcontroller UART interface of the radio module. Assemble
a 50 mil 6-pin SMT header on the bottom side. We recommend the use of the header FTSH-
103-01-F-DV by SAMTEC or a similar item.
The header pin description can be found in
Section 8
Table 11
.
Figure 4: USB Dongle trace header position (default not assembled)
8.3.
Assemble the Serial Flash Memory
The USB Dongle offers the use of an external Serial Flash Memory for custom application or
features. The memory interface is connected to the SPI of the radio module. The provided
Program header footprint
1
Trace header footprint
1
