HS - ADC, rare signal observed.

[lpcware]

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,

[lpcware]

bump

[lpcware]

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!!