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 LOW
- Before 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 0xFF
I try so much variation. Can u help me what is my fault?
