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SmartRF04 Eval Board LCD

Other Parts Discussed in Thread: CC2431

Hi,

I have two SmartRF04 eval boards and some CC2431's.  I'm trying to get the on screen diagnostic tests(Packet test, RF test etc.) to run when I supply the board with power.  When I turn the board on without a CC2431 chip plugged in, a message comes up on the LCD saying no chip detected and LED's 2-4 light up.  However when I have a chip plugged in nothing appears on the LCD and LED 1 is lit up.   I've tried powering it with a 9V battery, and then by USB.  I can run some of the test while it's plugged in USB and using SmartRF Studio 7.   But what I need to do is be able to run these without any cables connected to them.

 

Can anyone tell me why the LCD menu's don't appear when I have a chip plugged in?  (These chips and boards were used before they got to me if that makes a difference.)

 

- Thanks.