Hi,
Can you please help me in explaining the analog loopback.
Is it done by physically tying together the MOSI and SOMI pins and calling the
spiEnableLoopback(spi_selected_address, analog_loopback); and then monitoring the receive buffer ?
Do I have to do anything extra to this ?
Regards
Sherry
Hello Sherry,
When using analog loop back it is not necessary to make a physical loop back circuit in your design/PCB.
Note in the diagram that the area shown as 'A' is the digital logic part of the module, the area indicated as 'B' is the analog buffers for taking the digital signals out to the real world (still inside the chip), and the area indicated as 'C' is outside the chip or at the pin level of the device.
