| // Copyright lowRISC contributors. |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| |
| // basic error test vseq |
| // During the channels are operating (patterns are not fully generated), |
| // this vseq can randomly disable channels that causes error patterns which |
| // must be detected and dropped in scoreboard and agent_monitor |
| class pattgen_error_vseq extends pattgen_base_vseq; |
| `uvm_object_utils(pattgen_error_vseq) |
| `uvm_object_new |
| |
| virtual task pre_start(); |
| super.pre_start(); |
| cfg.seq_cfg.error_injected_enb = 1'b1; |
| // in order to inject error, the generated patterns should be long enough because |
| // completed interrupts can be triggerred before enable bit is unset in the last bit |
| // which indicates a correct correct patterns |
| cfg.seq_cfg.pattgen_min_prediv = 10; |
| cfg.seq_cfg.pattgen_max_prediv = 20; |
| cfg.seq_cfg.pattgen_min_len = 5; |
| cfg.seq_cfg.pattgen_min_reps = 5; |
| endtask : pre_start |
| |
| endclass : pattgen_error_vseq |
