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‎core/rb_cva6_copro_exp/README.md‎

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# TRISTAN/rb_cva6_cropro_exp
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This repository is holding the source RTL for EXP coprocessor designed by Bosch, in the context of the TRISTAN project.
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This EXPonential coprocessor, computes exp(-x) in fixed point , where :
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- x is in Q5.26 (i.e in [0,32[ ,
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- exp(-x) in Q0.31 in ]0,1[
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Additionnaly, some testbenches are available.
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## Table of Contents <!-- omit in toc -->
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- [How to use this repo](#howto)
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- [Directory Structure](#directory-structure)
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- [Links and resources](#links-resources)
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- [About](#about)
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- [Maintainers](#maintainers)
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An example implementation of a CRC and EXP coprocessor wrapper on the CVX-F interface is given below .:
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```
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// ---------------
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// EXP Coprocessor
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// ---------------
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cvxif_exp_coprocessor i_cvxif_exp_coprocessor0 (
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.clk_i ( clk ),
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.rst_ni ( sys_rst_n ),
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.cvxif_req_i ( cvxif_req ),
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.cvxif_resp_o ( cvxif_resp )
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);
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```
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## Directory Structure <a name="directory-structure"></a>
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This repository is structured according to the standard EIY folder structure :
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* rtl_v : contains RTL files
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## Links and resources <a name="links-resources"></a>
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* [EU TRISTAN project description](https://cordis.europa.eu/project/id/101095947)
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## About <a name="about"></a>
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Together for RISc-V Technology and ApplicatioNs (TRISTAN) is a project financed partly by the Europan Union and involving multiple companies.
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Some of the activities done by BOSCH will by open-sourced while other aspects will stay closed source.
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### Maintainers <a name="maintainers"></a>
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* [Nicolas TRIBIE](nicolas.tribie___at__@fr.bosch.com)

‎core/rb_cva6_copro_wrapper/README.md‎

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# TRISTAN/rb_cva6_cropro_wrapper
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This repository is holding the source RTL for the CVX-if coprocessor wrapper CRC designed by Bosch, in the context of the TRISTAN project.
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Additionnaly, some testbenches are available.
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## Table of Contents <!-- omit in toc -->
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- [How to use this repo](#howto)
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- [Directory Structure](#directory-structure)
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- [Links and resources](#links-resources)
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- [About](#about)
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- [Maintainers](#maintainers)
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An example implementation of a CRC and EXP coprocessor wrapper on the CVX-ID interface is given below :
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```
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// ---------------
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// CRC Coprocessor wrapper : CRC +EXP
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// ---------------
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cvxif_pkg::cvxif_req_t [cvxif_wrapper_pkg::COPRO_NBR-1:0] cvxif_req_copro;
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cvxif_pkg::cvxif_resp_t [cvxif_wrapper_pkg::COPRO_NBR-1:0] cvxif_resp_copro;
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cvxif_coprocessor_wrapper #(
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.COPRO_NBR ( cvxif_wrapper_pkg::COPRO_NBR ),
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.SAME_COPRO_NBR ( cvxif_wrapper_pkg::SAME_COPRO_NBR ),
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.SAME_COPRO_TABLE ( cvxif_wrapper_pkg::SAME_COPRO_TABLE ),
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.DECODING_TYPE ( cvxif_wrapper_pkg::DECODING_TYPE ),
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.decoding_LUT ( cvxif_wrapper_pkg::decoding_LUT ),
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.i_resp_LUT ( cvxif_wrapper_pkg::i_resp_LUT )
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) i_cvxif_coprocessor_wrapper (
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.clk_i ( clk ),
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.rst_ni ( sys_rst_n ),
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.cvxif_req_i ( cvxif_req ),
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.cvxif_req_copro ( cvxif_req_copro ),
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.cvxif_resp_copro ( cvxif_resp_copro ),
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.cvxif_resp_o ( cvxif_resp )
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);
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cvxif_crc_coprocessor i_cvxif_crc_coprocessor0 (
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.clk_i ( clk ),
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.rst_ni ( sys_rst_n ),
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.cvxif_req_i ( cvxif_req_copro[0] ),
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.cvxif_resp_o ( cvxif_resp_copro[0] )
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);
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cvxif_exp_coprocessor i_cvxif_exp_coprocessor1 (
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.clk_i ( clk ),
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.rst_ni ( sys_rst_n ),
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.cvxif_req_i ( cvxif_req_copro[1] ),
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.cvxif_resp_o ( cvxif_resp_copro[1] )
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);
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```
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## Directory Structure <a name="directory-structure"></a>
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This repository is structured according to the standard EIY folder structure :
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* rtl_v : contains RTL files
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## Links and resources <a name="links-resources"></a>
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* [EU TRISTAN project description](https://cordis.europa.eu/project/id/101095947)
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## About <a name="about"></a>
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Together for RISc-V Technology and ApplicatioNs (TRISTAN) is a project financed partly by the Europan Union and involving multiple companies.
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Some of the activities done by BOSCH will by open-sourced while other aspects will stay closed source.
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### Maintainers <a name="maintainers"></a>
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* [Nicolas TRIBIE](nicolas.tribie___at__@fr.bosch.com)

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