{"block":{"name":"uart","variant":null,"commit":"089bacaf62092eecb144c9ab9bd469b2670c9b30","commit_short":"089baca","branch":"master","url":"https://github.com/lowRISC/opentitan/tree/089bacaf62092eecb144c9ab9bd469b2670c9b30","revision_info":"GitHub Revision: [`089baca`](https://github.com/lowrisc/opentitan/tree/089bacaf62092eecb144c9ab9bd469b2670c9b30)"},"tool":{"name":"vcs","version":"unknown"},"timestamp":"2026-04-21T00:01:59Z","build_seed":null,"testplan_ref":"https://opentitan.org/book/hw/ip/uart/data/uart_testplan.html","stages":{"V1":{"testpoints":{"smoke":{"tests":{"uart_smoke":{"max_time":2.31,"sim_time":672.221328,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_hw_reset":{"tests":{"uart_csr_hw_reset":{"max_time":0.57,"sim_time":25.288168000000002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_rw":{"tests":{"uart_csr_rw":{"max_time":0.78,"sim_time":29.809236000000002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_bit_bash":{"tests":{"uart_csr_bit_bash":{"max_time":1.14,"sim_time":209.43923800000002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_aliasing":{"tests":{"uart_csr_aliasing":{"max_time":0.78,"sim_time":97.669367,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_mem_rw_with_rand_reset":{"tests":{"uart_csr_mem_rw_with_rand_reset":{"max_time":0.84,"sim_time":217.521041,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"regwen_csr_and_corresponding_lockable_csr":{"tests":{"uart_csr_rw":{"max_time":0.78,"sim_time":29.809236000000002,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":0.78,"sim_time":97.669367,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0}},"passed":6,"total":6,"percent":100.0},"V2":{"testpoints":{"base_random_seq":{"tests":{"uart_tx_rx":{"max_time":60.7,"sim_time":218998.921621,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"parity":{"tests":{"uart_smoke":{"max_time":2.31,"sim_time":672.221328,"passed":1,"total":1,"percent":100.0},"uart_tx_rx":{"max_time":60.7,"sim_time":218998.921621,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"parity_error":{"tests":{"uart_intr":{"max_time":11.44,"sim_time":50644.557711,"passed":1,"total":1,"percent":100.0},"uart_rx_parity_err":{"max_time":56.14,"sim_time":56419.077075999994,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"watermark":{"tests":{"uart_tx_rx":{"max_time":60.7,"sim_time":218998.921621,"passed":1,"total":1,"percent":100.0},"uart_intr":{"max_time":11.44,"sim_time":50644.557711,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"fifo_full":{"tests":{"uart_fifo_full":{"max_time":12.1,"sim_time":44699.625817,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_overflow":{"tests":{"uart_fifo_overflow":{"max_time":186.01,"sim_time":180935.451749,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_reset":{"tests":{"uart_fifo_reset":{"max_time":48.05,"sim_time":135742.53163100002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_frame_err":{"tests":{"uart_intr":{"max_time":11.44,"sim_time":50644.557711,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_break_err":{"tests":{"uart_intr":{"max_time":11.44,"sim_time":50644.557711,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_timeout":{"tests":{"uart_intr":{"max_time":11.44,"sim_time":50644.557711,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"perf":{"tests":{"uart_perf":{"max_time":107.0,"sim_time":13747.838409,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"sys_loopback":{"tests":{"uart_loopback":{"max_time":3.69,"sim_time":7659.61782,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"line_loopback":{"tests":{"uart_loopback":{"max_time":3.69,"sim_time":7659.61782,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_noise_filter":{"tests":{"uart_noise_filter":{"max_time":21.89,"sim_time":67750.439729,"passed":0,"total":1,"percent":0.0}},"passed":0,"total":1,"percent":0.0},"rx_start_bit_filter":{"tests":{"uart_rx_start_bit_filter":{"max_time":2.73,"sim_time":1891.994473,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tx_overide":{"tests":{"uart_tx_ovrd":{"max_time":1.91,"sim_time":519.918328,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_oversample":{"tests":{"uart_rx_oversample":{"max_time":9.53,"sim_time":5575.591712,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"long_b2b_transfer":{"tests":{"uart_long_xfer_wo_dly":{"max_time":117.72,"sim_time":45439.799894,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"stress_all":{"tests":{"uart_stress_all":{"max_time":24.19,"sim_time":22678.040743,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"alert_test":{"tests":{"uart_alert_test":{"max_time":0.55,"sim_time":45.625493999999996,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"intr_test":{"tests":{"uart_intr_test":{"max_time":0.61,"sim_time":47.100837,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tl_d_oob_addr_access":{"tests":{"uart_tl_errors":{"max_time":1.56,"sim_time":235.92275899999999,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tl_d_illegal_access":{"tests":{"uart_tl_errors":{"max_time":1.56,"sim_time":235.92275899999999,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tl_d_outstanding_access":{"tests":{"uart_csr_hw_reset":{"max_time":0.57,"sim_time":25.288168000000002,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":0.78,"sim_time":29.809236000000002,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":0.78,"sim_time":97.669367,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":0.87,"sim_time":158.230606,"passed":1,"total":1,"percent":100.0}},"passed":4,"total":4,"percent":100.0},"tl_d_partial_access":{"tests":{"uart_csr_hw_reset":{"max_time":0.57,"sim_time":25.288168000000002,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":0.78,"sim_time":29.809236000000002,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":0.78,"sim_time":97.669367,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":0.87,"sim_time":158.230606,"passed":1,"total":1,"percent":100.0}},"passed":4,"total":4,"percent":100.0}},"passed":21,"total":22,"percent":95.45454545454545},"V2S":{"testpoints":{"tl_intg_err":{"tests":{"uart_sec_cm":{"max_time":1.14,"sim_time":1077.684449,"passed":1,"total":1,"percent":100.0},"uart_tl_intg_err":{"max_time":1.06,"sim_time":781.3377290000001,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"sec_cm_bus_integrity":{"tests":{"uart_tl_intg_err":{"max_time":1.06,"sim_time":781.3377290000001,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"V3":{"testpoints":{"stress_all_with_rand_reset":{"tests":{"uart_stress_all_with_rand_reset":{"max_time":30.82,"sim_time":8227.075431,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0}},"coverage":{"code":{"block":null,"line_statement":99.17,"branch":96.97,"condition_expression":96.27,"toggle":91.55,"fsm":null},"assertion":97.12,"functional":52.11},"cov_report_page":"/nightly/current_run/scratch/master/uart-sim-vcs/cov_report/dashboard.html","failed_jobs":{"buckets":{"UVM_ERROR (uart_scoreboard.sv:377) [scoreboard] Check failed get_field_val(ral.status.rxempty, item.d_data) == rx_empty_exp (* [*] vs * [*]) check rx_empty fail: uart_rx_clk_pulses = *, rx_q.size = *":[{"name":"uart_noise_filter","qual_name":"0.uart_noise_filter.39896851755050944223528978018460115026966574929358455527312828033275927205772","seed":39896851755050944223528978018460115026966574929358455527312828033275927205772,"line":80,"log_path":"/nightly/current_run/scratch/master/uart-sim-vcs/0.uart_noise_filter/latest/run.log","log_context":["UVM_ERROR @ 64477676757 ps: (uart_scoreboard.sv:393) [uvm_test_top.env.scoreboard] Check failed get_field_val(ral.status.rxidle, item.d_data) == rx_idle_exp (0 [0x0] vs 1 [0x1]) check rx_idle fail: rx_en = 1, uart_rx_clk_pulses = 0\n","UVM_ERROR @ 64477676757 ps: (csr_utils_pkg.sv:456) [csr_utils_pkg::csr_rd_check.isolation_fork.unnamed$$_0] Check failed obs == exp (0 [0x0] vs 1 [0x1]) Regname: uart_reg_block.status.rxidle reset value: 0x1 \n","UVM_ERROR @ 64592545633 ps: (uart_scoreboard.sv:501) uvm_test_top.env.scoreboard [uvm_test_top.env.scoreboard] rxlvl mismatch exp: 1 (+/-1), act: 2,                                 clk_pulses: 0\n","UVM_ERROR @ 64592632589 ps: (uart_scoreboard.sv:531) [uvm_test_top.env.scoreboard] Check failed csr.get_mirrored_value() == item.d_data (47 [0x2f] vs 253 [0xfd]) reg name: uart_reg_block.rdata\n"]}]}},"passed":26,"total":27,"percent":96.29629629629629}