Read data is 0XF4,0X53,0XFE, how to parse?
Looking at the timing diagram of Figure 3a, I think there could be something wrong with your communication with the ADC. The first two bits should always be zeros. Can you provide an oscilloscope photo showing CSL, SCK, SDI and SDO? A schematic of your circuit would also be helpful.
Read channel 0 data, single-end input, single chip sends 0XB0, right
How to obtain the BUSY signal of LTC2448?After the signal needs to be isolated, it is sent to the MCU for collection. The BUSY signal is directly connected to the input negative end of the optocoupler and absorbs the current, ok?
Waiting for your reply, thank you!
I do not understand what you are asking me.
wonder if it is possible for the MCU to detect the BUSY signal according to the circuit shown in the picture?
LTC2488 does not have a BUSY pin. TLP291-1 is not recommended for new designs. SDO can be used indirectly to generate BUSY but the data sheet does not indicate that SDO can drive the TLP291-1 diode.