{"block":{"name":"uart","variant":null,"commit":"c01a435ae6a4f7990af58aa6d61139a8e97ced0a","commit_short":"c01a435","dirty":true,"branch":"master","url":"https://github.com/lowRISC/opentitan/tree/c01a435ae6a4f7990af58aa6d61139a8e97ced0a","revision_info":"GitHub Revision: [`c01a435`](https://github.com/lowrisc/opentitan/tree/c01a435ae6a4f7990af58aa6d61139a8e97ced0a)"},"tool":{"name":"xcelium","version":"unknown"},"timestamp":"2026-07-28T19:40:30Z","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":3.0,"sim_time":551.706828,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_hw_reset":{"tests":{"uart_csr_hw_reset":{"max_time":1.0,"sim_time":21.591524,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_rw":{"tests":{"uart_csr_rw":{"max_time":1.0,"sim_time":60.157966,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_bit_bash":{"tests":{"uart_csr_bit_bash":{"max_time":2.0,"sim_time":142.834069,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_aliasing":{"tests":{"uart_csr_aliasing":{"max_time":2.0,"sim_time":34.988979,"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":1.0,"sim_time":105.902655,"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":1.0,"sim_time":60.157966,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":2.0,"sim_time":34.988979,"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":44.0,"sim_time":83367.835169,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"parity":{"tests":{"uart_smoke":{"max_time":3.0,"sim_time":551.706828,"passed":1,"total":1,"percent":100.0},"uart_tx_rx":{"max_time":44.0,"sim_time":83367.835169,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"parity_error":{"tests":{"uart_intr":{"max_time":43.0,"sim_time":43546.069127999996,"passed":1,"total":1,"percent":100.0},"uart_rx_parity_err":{"max_time":31.0,"sim_time":51764.648001999994,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"watermark":{"tests":{"uart_tx_rx":{"max_time":44.0,"sim_time":83367.835169,"passed":1,"total":1,"percent":100.0},"uart_intr":{"max_time":43.0,"sim_time":43546.069127999996,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"fifo_full":{"tests":{"uart_fifo_full":{"max_time":9.0,"sim_time":27950.921699000002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_overflow":{"tests":{"uart_fifo_overflow":{"max_time":14.0,"sim_time":44768.556831,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_reset":{"tests":{"uart_fifo_reset":{"max_time":70.0,"sim_time":147111.961723,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_frame_err":{"tests":{"uart_intr":{"max_time":43.0,"sim_time":43546.069127999996,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_break_err":{"tests":{"uart_intr":{"max_time":43.0,"sim_time":43546.069127999996,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_timeout":{"tests":{"uart_intr":{"max_time":43.0,"sim_time":43546.069127999996,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"perf":{"tests":{"uart_perf":{"max_time":43.0,"sim_time":9317.774453,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"sys_loopback":{"tests":{"uart_loopback":{"max_time":3.0,"sim_time":9636.581356,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"line_loopback":{"tests":{"uart_loopback":{"max_time":3.0,"sim_time":9636.581356,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_noise_filter":{"tests":{"uart_noise_filter":{"max_time":5.0,"sim_time":7081.524036999999,"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":6.0,"sim_time":45736.158489,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tx_overide":{"tests":{"uart_tx_ovrd":{"max_time":3.0,"sim_time":1743.05771,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_oversample":{"tests":{"uart_rx_oversample":{"max_time":13.0,"sim_time":5565.99781,"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":204.0,"sim_time":87488.019262,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"stress_all":{"tests":{"uart_stress_all":{"max_time":114.0,"sim_time":243185.77328,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"alert_test":{"tests":{"uart_alert_test":{"max_time":1.0,"sim_time":13.479659,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"intr_test":{"tests":{"uart_intr_test":{"max_time":1.0,"sim_time":47.086513,"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":2.0,"sim_time":108.683316,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tl_d_illegal_access":{"tests":{"uart_tl_errors":{"max_time":2.0,"sim_time":108.683316,"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":1.0,"sim_time":21.591524,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":1.0,"sim_time":60.157966,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":2.0,"sim_time":34.988979,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":1.0,"sim_time":20.194626,"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":1.0,"sim_time":21.591524,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":1.0,"sim_time":60.157966,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":2.0,"sim_time":34.988979,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":1.0,"sim_time":20.194626,"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":1.0,"sim_time":69.447491,"passed":1,"total":1,"percent":100.0},"uart_tl_intg_err":{"max_time":1.0,"sim_time":315.00301,"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":1.0,"sim_time":315.00301,"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":29.0,"sim_time":3473.8380230000002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0}},"coverage":{"code":{"block":98.83,"line_statement":99.24,"branch":97.79,"condition_expression":null,"toggle":73.08,"fsm":100.0},"assertion":98.27,"functional":90.69},"cov_report_page":"/nightly/current_run/scratch/master/uart-sim-xcelium/cov_report/index.html","vplan_report_page":null,"vplan_coverage":null,"failed_jobs":{"buckets":{"UVM_ERROR (uart_scoreboard.sv:379) [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.28262545566347919963204076183776772672718810899729626621652308199456435975903","seed":28262545566347919963204076183776772672718810899729626621652308199456435975903,"line":84,"log_path":"/nightly/current_run/scratch/master/uart-sim-xcelium/0.uart_noise_filter/latest/run.log","log_context":["UVM_ERROR @ 6439244037 ps: (uart_scoreboard.sv:395) [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 @ 6439244037 ps: (csr_utils_pkg.sv:458) [csr_utils_pkg::csr_rd_check.isolation_fork.unmblk1] Check failed obs == exp (0 [0x0] vs 1 [0x1]) Regname: uart_reg_block.status.rxidle reset value: 0x1 \n","UVM_ERROR @ 6847224037 ps: (uart_scoreboard.sv:502) uvm_test_top.env.scoreboard [uvm_test_top.env.scoreboard] rxlvl mismatch exp: 2 (+/-1), act: 29,                                 clk_pulses: 0\n","UVM_ERROR @ 6847424037 ps: (uart_scoreboard.sv:532) [uvm_test_top.env.scoreboard] Check failed csr.get_mirrored_value() == item.d_data (52 [0x34] vs 255 [0xff]) reg name: uart_reg_block.rdata\n"]}]}},"passed":26,"total":27,"percent":96.29629629629629}