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CC1101 SPI problem

Other Parts Discussed in Thread: CC1101

Hello everybody!

We have some problems with the CC1101. On the beginning, our hardware is working well during some weeks or some months... The hardware is outside. It is protected but it may know temperature differences and humidiy... So, after some weeks, some hardwares doesn't work and more particularly the CC1101... The chip doesn't answer to my SPI commands. With an oscilloscope, I see the good things on SCLK and SI but I have on SO only '0' when CS='1' and '1' when CS='0'. So I always read 0xFF to my commands.

If someone could help me...

Thank you very much.

Grégory