1
Interface board aim
Figure 2. Customer typical application
shows a customer typical application based on
for the power
supply section.
The host microcontroller receives information only from the STNRG011 using an opto-isolated connection:
STNRG011 transmits metering information (instantaneous power) continuously, and the black box content at
reset.
Hence, the host microcontroller does not have access to the STNRG011 optional E²PROM where the patch and
black box history are stored.
Figure 2.
Customer typical application
Figure 3. STNRG011 in demo/debug configuration
board or during debug configuration.
In the latter case, you can access the external optional E²PROM using the I²C protocol to program the associated
patches and reset the black box content.
You also have to access STNRG011 using UART bidirectional communication to:
•
program the STNRG011 NVM content to change specific parameters according to customers’ needs
•
display the system specific parameters in real-time to check its behavior during the debug and integration
phases.
UM2342
Interface board aim
UM2342
-
Rev 1
page 2/57
