BMD-34 / 38 EVK - User guide
UBX-19033356 - R05
Hardware description
Page 13 of 20
C1-Public
2.10
GPIO jumpers
Many solder bridge jumpers on the board are available to allow GPIO configuration. Most solder
jumpers are used to remove on-board components from the module’s GPIO nets to eliminate
interference with external circuitry added on the I/O headers. All GPIOs are directly connected
to the I/O Headers by default, except P0.00 & P0.01 (32 kHz crystal), P0.09 & P0.10 (NFC
antenna), and P0.17 & P0.20 - P0.23 (QSPI). These are disconnected from the I/O headers as
they would interfere with the default functions. The GPIO jumpers are shown on the bottom of
the BMD-34 evaluation kit.
Figure 13: GPIO jumpers
2.11
Header pin-out
Headers J5 - J9 and J11 break out the IO signals from the BMD-34 module on 2.54 mm pitch
headers.
Figure 14: BMD-340 evaluation board pin-out
⚠
The I/O pins of the BMD-34 EVK are not 5 V tolerant. Arduino Uno® style shields shall be
configured to use +3.3 V DC (
VSHLD
) as the I/O voltage reference.
The tables below are presented in order of the headers on the BMD-34-eval boards.
