-
Posts
115 -
Joined
-
Last visited
Content Type
Profiles
Forums
Events
Gallery
Posts posted by Ahmed Alfadhel
-
-
On 5/25/2021 at 8:45 PM, user3416 said:
Could you please provide the code to operate the DDS core and Pmod or provide some guidance on how I can achieve my goal.
@user3416 Hi,
You need to create your block diagram (DDS IP, PmodDA3 IP, GPIO IP, Microblaze,....) , then you have to embed C code using XSDK (the C code for instructing the IPs how to interact with each other).
Yon can benefit from my project resources here:
https://www.hackster.io/ahmed-alfadhel/frequency-hopping-spread-spectrum-fhss-system-c72dde
-
Hi @D@n
Thank you for your perfect analyzing and solution to my issue .
I just toggled the MSB in each written Byte and I got the sinewave finally.
However, I wondered , since in the data sheets (AD5541A , AD7303) is mentioned I have to use operation amplifier in order to get a bipolar signal !
Thanks again.
-
Hi ,
I am using DDS IP core to visualize a 5 kHz sine wave signal.
At first I simulated the IP core using Vivado simulator . I used 25 MHz clock signal. I got a sine wave signal as shown in the first attached picture.
When I changed the Radix from "signed data type" to "unsigned data type" the sine wave will be like in the second attached picture.
And when I implemented my design on my ARTY 7 , and connected the output of Pmod DA3 to the oscilloscope , I got a signal similar to that in the second attached picture ! As shown in the third attached picture .
I changed all the intended data types in my program from u16 to s16 but the no thing is changed !
Pls , I am looking forward your help. How to visualize a DDS sine wave properly using Pmod DA3 ?
Thanks.
NN activation functions
in Add-on Boards
Posted · Edited by Ahmed Alfadhel
I am beginner to Neural Network (NN) design,
could you instruct me about how to implement a linear activation function by VHDL ?
I need a simple example of implementation a linear activation function by VHDL.
Thanks