Hello TI experts,
My customer made a PCB with ADS7868 for monitoring voltage of battery.
Here is the schematic.
as you see, we use 1.8V VDD and used resistor divider for 4.2V-full-battery. so it can represent 4.2V as full.
and we set the SPIO as mode 3 (CPOL=1, CPHA=1), and MSB first, 8bit data size.
then we attached a battery to the sample PCB, then checked the debug message in MCU.
I think 96 is real value. but I can see 64 and many 0.
as normal operation, i think it have to show only one value. (96 in this case)
is it normal operation that i see some meaningless data? or do I miss something in schematic or SPI communication?
Please check this issue. Thanks.
Best regards,
Chase