Entity: HammingEccTb
- File: HammingEccTb.vhd
Diagram
Description
Title : Hamming-ECC: https://en.wikipedia.org/wiki/Hamming_code
Company : SLAC National Accelerator Laboratory
Description: Testbench for design "hamming-ecc"
This file is part of 'SLAC Firmware Standard Library'. It is subject to the license terms in the LICENSE.txt file found in the top-level directory of this distribution and at: https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html. No part of 'SLAC Firmware Standard Library', including this file, may be copied, modified, propagated, or distributed except according to
the terms contained in the LICENSE.txt file.
Signals
| Name | Type | Description |
|---|---|---|
| r | RegType | |
| rin | RegType | |
| clk | sl | |
| rst | sl | |
| encValid | sl | |
| encData | slv(ENC_WIDTH_C downto 0) | |
| encDataMask | slv(ENC_WIDTH_C downto 0) | |
| obValid | sl | |
| obData | slv(DATA_WIDTH_C-1 downto 0) | |
| obErrSbit | sl | |
| obErrDbit | sl | |
| passed | sl | |
| failed | sl |
Constants
| Name | Type | Value | Description |
|---|---|---|---|
| CLK_PERIOD_C | time | 4 ns | |
| TPD_G | time | CLK_PERIOD_C/4 | |
| DATA_WIDTH_C | positive | 8 | |
| ENC_WIDTH_C | positive | hammingEccDataWidth(DATA_WIDTH_C) | |
| k | positive | DATA_WIDTH_C | Useful values to see in simulation |
| m | positive | hammingEccPartiyWidth(k) | |
| n | positive | hammingEccDataWidth(k) | |
| REG_INIT_C | RegType | ( passed => '0', failed => '0', ibValid => '0', ibData => (others => '0'), bitErrorMask => (others => '0'), state => LOAD_S) |
Types
| Name | Type | Description |
|---|---|---|
| StateType | ( LOAD_S, WAIT_S, FAILED_S, PASSED_S) |
|
| RegType |
Processes
- comb: ( obData, obErrDbit, obErrSbit, obValid, r, rst )
Description
----------------------------------------------- FSM to sweep through all possible combination ----------------------------------------------
- seq: ( clk )
- unnamed: ( failed, passed )
Instantiations
- U_ClkRst: surf.ClkRst
- U_Encoder: surf.HammingEccEncoder
Description
Modules to be testing
- U_Decoder: surf.HammingEccDecoder
Description
Insert the bit error