4 Customization
The EVM, in conjunction with GUI tool, provides various degrees of customization. A couple of examples are
provided here which can be generalized to a number of functions.
4.1 Changing the Communication Interface
The default settings for communication with the PMIC is SPI. Changing to I
2
C requires a removal of jumpers
from J18, J24 as highlighted in red in
. At J18, the jumper on SPI_EN connects the microcontroller to
the SPI bus to which the PMIC is connected. The SPI does not have a device ID and therefore the chip select is
used to determine which PMIC receives and responds to commands on the SPI bus.
Figure 4-1. Interface Settings for I
2
C Communication
Customization
SLVUC20A – MARCH 2021 – REVISED AUGUST 2022
LP876242-Q1 Evaluation Module
9
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