EVK-IRIS-W10 - User guide
UBX-23007837 - R03
Hardware description
Page 27 of 43
C1-Public
Figure 28: mikroBUS 1 schematic
UART
SPI
I2C
RX
TX
MOSI
MISO
SDA
SCL
mikroBUS 1
GPIO 2
J27*
J84
J85
GPIO 3
J25*
J83
J80
Table 15: mikroBUS 1 working standard options, (*) default connection
3.8.2
mikroBUS 2 slot
This slot is connected to the Flexcomm interface 2, cannot be used either as SPI standard
simultaneously with SDIO function, which shares
GPIO 15
and
GPIO 16
. or as UART with SWD
interface enabled (
U19
default connection, disconnect
R257
and populate
R258
with
0R
) as
To
enable
this slot:
•
In case of USB switch
U19
is populated, toggle the
default connection: Disconnect
R142,
R142, R258,
and populate
R257
with
0R.
Otherwise
populate
R142, R143
with
0R
.
•
Jumpers
J55
and
J56
are set to their default connection, as shown in
•
Check that jumpers,
J26, J28, J81, J82, J86, J87, J88, J91,
and resistors
R11, R21,
match the required operation, as described in
and
Figure 29: mikroBUS 2 jumpers J55, J56 default connection