Microzed XADC pins + Connections BKO Carrier

Hello !

I'm trying to use the XADC on the Microzed 7010 to input analog signal and filter it on the FPGA. I have a Breakout Carrier Card to enable this analog input.

I looked at the pins that connect the VP_0_P and the VN_0_N to the JX1 microheader :
(http://microzed.org/sites/default/files/documentations/MicroZed_HW_UG_v1_4.pdf page 18)

VP_0_P : Bank 0, L10 JX1Pin : 97

VN_0_N : Bank 0, K9 JX1Pin : 99

Then I took a look at the BKO card to see where to connect my input signal. I searched for the JX1Pin 97 and 99, but they both are referenced as GND.

(http://zedboard.org/sites/default/files/documentations/5271-UG-MBCC-BKO-V1.2.pdf page 10)

Thus I'm confused to where I should connect my inputs to use the dedicated Vp and Vn inputs of the SoC.

Any help would be greatly appreciated, thank you !

0 jafoste4 over 6 years ago

Hello Luc,
If you look in the BKO card HW User Guide, section 2.1.3. it states Bank 35 exposes several I/Os that may be used as analog inputs to the XADC.

You could try looking into bank 35 for the application you wish to run.
--Josh
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0 Former Member over 6 years ago in reply to jafoste4

Hello Luc,
you can use the ADC channel 0 out of xadc 8 channels connected to connecter2 of breakout board.
CON2, pin 5 IO_L1P_T0_35 JX2, pin 17 Bank 35, C20 IO_L1P_T0_AD0P_35
CON2, pin 7 IO_L1N_T0_35 JX2, pin 19 Bank 35, B20 IO_L1N_T0_AD0N_35

pin 7 n channel must be grounded for propper readout if you are using single ended signal.
Thanks
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