Completed work : Quantizer module. Run Length Encoder  Module. Huffman Module. Byte-Stuffer Module. Back-end Main module. Back-end module compatible with front-end. Input Buffer that can store three blocks form front-end. Completed software prototype for back-end module.   To-Do : Connecting front-end and back-end. Commit new back-end with new interfaces (front-end compatible). The back-end module which […]

The Back-end Top module connects quantizer, RLE, Huffman and Byte-Stuffer Modules. The back-end have a small FSM sitting inside which makes all the modules run parallely. i.e when Byte-Stuffer sends ready signal to Huffman, Huffman sends ready to RLE, RLE send ready signal to Quantizer. The Back-end have a input buffer attached which will take […]

The Byte Stuffer module checks for 0xFF bytes and appends 0x00 after it. The Byte Stuffer module is implemented and already merged in the main repo.

I was stuck a bit while implementing the Huffman Module initially. I was thinking about implementing huffman tables on fly but soon realised it’s a very difficult task. Finally I changed my plan to build the tables using the JPEG Standards. I added all the huffman encoded values in a csv file and then built […]

The Quantizer module: This module uses a divider placed in its core. The Quantizer ROM is build using standard JPEG values. Right Now, the quantizer rom has fixed values. In future we plan to implement some process so that Quantizer ROM that can be programmed by the user. The Quantizer module is added to the […]

This post concerns with the brief summary of my GSoC experience till now. I made a Run Length Encoder till my mid-term evaluation and Quantizer module is still under process. I have made a divider for quantizer module, I have to make a top level module to get finished with Quantizer module. I made a […]

I have been suffering from viral fever. So, the whole week I was not able to work properly. Through out the week I made the first version of Run Length Encoder. Things worth discussing : To convert a number to unsigned in Python(MyHDL). We have to do is: “` a = a and 0xFF “` […]

During the second week. I made Run Length Encoder core which is here . I kept them as a PR. I will merge once I finish a  bit more work on them. I made a modification to Entropy Coder. Probably, I believe it will use gates instead of big comparators used in earlier design. The […]

I was woking using python2 earlier. I created my account in http://discourse.myhdl.org/ . I came to know that we should use Pyhton3. Also, we should work using MyHDL 1.0 dev Commands to install MyHDL 1.0 dev and make it work with python3 “` sudo -E git clone https://github.com/jandecaluwe/myhdl // clone MyHDL 1.0 dev python3 setup.py […]

Long time since a update. Sorry everyone for the late updates. This week is full of surprises for me. I started using MyHDL and I came to know how things work exactly. I will explain my experience with different attributes and modules one by one. I will be using verilog much in my blog because […]