HS - ADC, rare signal observed.

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HS - ADC, rare signal observed.

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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by rodri on Wed Apr 27 10:40:53 MST 2016
Hi,

I'm sampling a ramp signal with 50% of simmetry, but when I pass it to the PC and plot it with matlab I observe a rare signal.

(attached the images)

As you can see the triangular shape (that corresponds to the one I'm sampling) seems to be the envelope of a faster ramp. This second ramp has a positive pendent when the triangular signal is increasing the value, and negative when the triangular is going low.

Anybody have an idea about what is hapening?

thanks in advance

Regards,
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lpcware
NXP Employee
NXP Employee
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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by rodri on Mon May 02 14:22:50 MST 2016
Ok, solved.

I thought that was a endian problem or that the bits did not have the proper order, but the problem was in my transfer to pc code... repeating samples in transmission, a stupid error!!

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