| // Copyright lowRISC contributors. |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| |
| // timeout test vseq |
| // this sequence sets timeout enable and value in timeout control reg |
| // runs random i2c transactions agent is configured to pull down clock |
| // host will trigger an interrupt stretch timeout when count exceeds the programmed |
| // value in timeout control reg |
| class i2c_host_timeout_vseq extends i2c_rx_tx_vseq; |
| `uvm_object_utils(i2c_host_timeout_vseq) |
| `uvm_object_new |
| |
| // increase num_trans to cover all transaction types |
| constraint num_trans_c { num_trans inside {[50 : 100]}; } |
| |
| // constraints for i2c timing registers |
| constraint t_timeout_c { t_timeout == cfg.seq_cfg.i2c_max_timing; } |
| constraint e_timeout_c { e_timeout == 1'b1; } |
| |
| endclass : i2c_host_timeout_vseq |
