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CC2570 ANT Low level

cody lohse
Intellectual 650 points
Other Parts Discussed in Thread: CC2570

Hi,

I am trying to change chip solutions from the NRF24AP2 to the CC2570. I am using the same low level serial functions in byte sync mode that I had successfully used with the NRF24AP2, but am not having the same luck with the cc2570. I have configured all of the pins the same and designed the circuit to match the reference design by TI.

The problem:

The SEN line is pulled down and is non-responsive other than when a reset takes place, the SEN line will pulse high.  I believe this behavior is correct for the reset condition. The SEN and SCLK lines are inactive when a SRDY is applied, I am unsure if the CC2570 is clocking in the data. I have seen a function for enabling an external crystal (ANT_crystalEnable()) is this required for the CC2570? Although, I am unable to send messages to the CC2570, so I more than likely will not be able to use the ANT_crystalEnable() function anyways.

Any ideas would be helpful as well,

Thanks