Stm32f429 disco integration with finger print sensor using spi

[Abhishek_nr]

Hello..

I am using STM32F429 Disco Board in which I am trying to interface finger print sensor NB65210 of next biometric using spi and I need to read the finger print data I have a example code in which it is reading properly but it is not reading when I configured for myself l, I have selected proper clock, spi pins, Chip select nreset, nawake, the library which ever they have given I have not modified NBdeviceInitializationA  it is getting nbok but after that stocking and giving error code for all library function what will the issue can anyone suggest the solution...

[Andrew Neil]

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@Abhishek_nr wrote:

I have a example code in which it is reading properly but it is not reading when I configured for myself l

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So carefully compare & contrast your implementation against the working one.

Have you checked the interface lines with an oscilloscope and/or logic analyser to see what's actually happening on the wires?

 

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@Abhishek_nr wrote:

finger print sensor NB65210 

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Please post a link to its documentation.

Please post your schematic.

See: How to write your question to maximize your chances to find a solution