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AMC7820 SPI Initialization error

Nithin Mohanan
Prodigy 220 points
Other Parts Discussed in Thread: AMC7820

hi we are using the AMC7820 for the total controlling of the pump laser and TEC control in out EDFA system, But during the testing there shows some SPI initialization error such that the communication between the master PIC and the AMC7820 is not establishing and there is no external components in the communication path between the PIC and AMC7820 and anyone knows the common problems that leads to the SPI initialization problems in the AMC7820 systems??