There is a problem using SPSGRFC-868. let me write my steps,I generated 72Mhz/64 clock freq. for SPI SPI working mode 0 (Clck idle low/ first clck edge)(I tried 4 mode extra.)before loop SDN pin LOWBefore read-write Chipselect pin LOW, after that HIGH.firstly I tried reading registers . the codes like that, Write(0x01); Write(0x94) // any register Dummy_data = Read(0); I run the code.(I look osilosscope and SPI signals as I wrote above.)fristly Dummy_data becomes 0x52 20-30 times. after that Dummy_data becomes 0x00 finally Dummy_data becomes 0xFFI try so much variation. Can u help me what is my fault?

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Question

What is my SPI communication error with SPSGRFC-868 module?

There is a problem using SPSGRFC-868. let me write my steps,

Write(0x01);

Write(0x94) // any register

Dummy_data = Read(0);

I run the code.(I look osilosscope and SPI signals as I wrote above.)

fristly Dummy_data becomes 0x52 20-30 times. after that Dummy_data becomes 0x00 finally Dummy_data becomes 0xFF

I try so much variation. Can u help me what is my fault?

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