I am kind of new to FPGAs and I am trying to use the XADC in order to monitor the temperature sensor:
I am using Vivado 2018.2, Nexys video as a board.
I used the IP catalog in order to set up the XADC as following: DRP, Single channel, continuous, disable all alarms, disable reset_in, channel to monitor: temperature
I wrote a top level module which reads the bits 4 up to 7 from do_out and light up LEDs accordingly:
//part of the top module:
input [1:0] sw,
output reg [11:0] LED
wire [15:0] data;
reg [6:0] Address_in;
xadc_wiz_0 XLXI_7 (.daddr_in(Address_in), //addresses can be found in the artix 7 XADC user guide DRP register space
always @( posedge(CLK100MHZ))
if(ready == 1'b1)
4'b0001: LED <= 12'b000000000001;
4'b0: LED <= 12'b0;
default: LED <= 12'b1;
I have one problem though, as I come to set the address of the ddr_in as done in a documentation found here which has LEDs displaying potential differences monitored by XADC, I do not understand what 8 bit address I should assign for the DRP to monitor the Temperature Channel !
"Address_in <= 8'h ????"
My goal: I need the LEds to display something for the sake of demonstration that I am able to read values out of the do_out.
Thank you for your help.