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SPI testing MISO-MOSI connected

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wonghonyin

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Hi,

I am new into the SPI testing and trying to verify the SPI interface is working.

The board I am using is TI L138 and it has only one SPI interface.

Is it possible to directly connect the MISO with the MOSI pins to perform a loop back test? So far, it's not working. Anything else I should do to get this working?

I have verified using scope that there is output at MOSI.

thanks
Francis
 

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