Subversion Repositories dmt_tx

DMT Transceiver Project

July 11th, 2010

I started out this project as a very general idea to develop hardware

description of core parts for an ADSL modem. At that time I started out

with Verilog as HDL.

The Constellation Encoder is a first product of this.

Now I am more specific and my goal is to create the Central Office side

(ATU-C) of an ADSL modem. The reason for that is that ADSL has been

widely used and the customer side modems (ATU-R) are widespread. However

Central Office side modems are only available as a whole DSLAM, with

mini DSLAMs starting with at least a dozen lines. For home use there

might be the interest to connect an old ADSL modem for a point-to-point

connection and that is what this project could provide the hardware for.

It is a slow pace project and as such will progress rather slow.

For the HDL side I decided to switch to MyHDL (http://www.myhdl.org) My

idea is to create convertible RTL code and self-checking testbenches in

MyHDL. All MyHDL code will now go into the myhdl folder.

File structure

==============

File structure is now as follows:

.

|-- const_encoder

|   |-- doc

|   |   `-- ConstSpec.pdf

|   |-- Makefile

|   |-- rtl

|   |   |-- const_enc.v

|   |   |-- defs.vh

|   |   |-- fifo.v

|   |   |-- generic_dpram.v

|   |   `-- parameters.vh

|   `-- tb

|       |-- const_map_data.v

|       |-- tb_const_enc.v

|       `-- tb_fifo.v

|-- gpl.txt

`-- myhdl

const_encoder:  Contains the old Verilog code for the Constellation

                Encoder

myhdl:          Contains the future MyHDL code