Development Kit User Guide
Rev 2.0 Apr.20
10
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Pins 01 to 02 have to be configured by connecting them with jumpers.
See
on page 9 for jumper configuration consistent with
SYSTEM0 settings.
Mismatching jumper connections will result in pin error after reboot; in this case,
I2C features will not be enabled.
BOOT Mode
The BOOT Mode header is used to place the module in Flash download mode to
perform firmware updates.
Figure 3
-
7: BOOT Mode Header
Table 3
-
4: I2C Header Details
Component
PCB Label
Description
5-pin header
P1
I2C
signals; refer to
Table 3
-
5: I2C Header Pins
Pin Number
Pin Name
Description
1
GND
Ground
2
GND
Ground
3
RX0 / I2CSDA
I2C serial data (in slave mode)
4
TX0 / I2CSCL
I2C serial clock (in slave mode)
5
GND
Ground
Table 3
-
6: BOOT Mode Details
Component
PCB Label
Description
2-pin header
P23
Add a jumper to make the module ready for
firmware upgrade
