Simulink: How to implement a basic Differential encoder in HDL coder?

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Guruditya Sinha
Guruditya Sinha 2018-8-29
回答： Kiran Kintali 2018-8-29
Hi,
I Have the following query:
1) How does one implement a differential encoder in HDL coder? The pre-existing blocks cannot be converted to HDL.
Am using Simulink for this. Please help.

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Kiran Kintali
Kiran Kintali 2018-8-29
An additional note not knowing fully your requirements
The definition of a differential encoder is:
The output is the logical difference between the current input element and the previous output element. More specifically, the input and output are related by
% Initial condition parameter value (ic)
d(i0) = m(i0) XOR ic
d(ik) = d(ik-1) XOR m(ik)
Assuming the input is sample-based, this is just a delay block and XOR.

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Kiran Kintali
Kiran Kintali 2018-8-29
编辑：Kiran Kintali 2018-8-29
Please check if these shipping examples for differential encoding (QAM and QPSK) help?
HDL Optimized QAM Transmitter and Receiver
HDL Optimized QPSK Transmitter

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