{"block":{"name":"uart","variant":null,"commit":"d7237495dea39d79ccfabeece84c1ab376804ad7","commit_short":"d723749","branch":"master","url":"https://github.com/lowRISC/opentitan/tree/d7237495dea39d79ccfabeece84c1ab376804ad7","revision_info":"GitHub Revision: [`d723749`](https://github.com/lowrisc/opentitan/tree/d7237495dea39d79ccfabeece84c1ab376804ad7)"},"tool":{"name":"xcelium","version":"unknown"},"timestamp":"2026-05-11T19:40:30Z","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":2.0,"sim_time":122.461758,"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":16.556046,"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":14.456631999999999,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_bit_bash":{"tests":{"uart_csr_bit_bash":{"max_time":4.0,"sim_time":247.993957,"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":57.654042999999994,"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":37.409678,"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":14.456631999999999,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":2.0,"sim_time":57.654042999999994,"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":124.00000000000001,"sim_time":81831.57341699999,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"parity":{"tests":{"uart_smoke":{"max_time":2.0,"sim_time":122.461758,"passed":1,"total":1,"percent":100.0},"uart_tx_rx":{"max_time":124.00000000000001,"sim_time":81831.57341699999,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"parity_error":{"tests":{"uart_intr":{"max_time":21.0,"sim_time":49432.834942,"passed":1,"total":1,"percent":100.0},"uart_rx_parity_err":{"max_time":53.0,"sim_time":35858.011935999995,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"watermark":{"tests":{"uart_tx_rx":{"max_time":124.00000000000001,"sim_time":81831.57341699999,"passed":1,"total":1,"percent":100.0},"uart_intr":{"max_time":21.0,"sim_time":49432.834942,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"fifo_full":{"tests":{"uart_fifo_full":{"max_time":43.0,"sim_time":33091.179151000004,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_overflow":{"tests":{"uart_fifo_overflow":{"max_time":65.0,"sim_time":72569.575259,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_reset":{"tests":{"uart_fifo_reset":{"max_time":14.0,"sim_time":19677.364247,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_frame_err":{"tests":{"uart_intr":{"max_time":21.0,"sim_time":49432.834942,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_break_err":{"tests":{"uart_intr":{"max_time":21.0,"sim_time":49432.834942,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_timeout":{"tests":{"uart_intr":{"max_time":21.0,"sim_time":49432.834942,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"perf":{"tests":{"uart_perf":{"max_time":263.0,"sim_time":10154.884837,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"sys_loopback":{"tests":{"uart_loopback":{"max_time":2.0,"sim_time":1506.022405,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"line_loopback":{"tests":{"uart_loopback":{"max_time":2.0,"sim_time":1506.022405,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_noise_filter":{"tests":{"uart_noise_filter":{"max_time":8.0,"sim_time":3782.184912,"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":23.0,"sim_time":68486.39329899999,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tx_overide":{"tests":{"uart_tx_ovrd":{"max_time":4.0,"sim_time":1564.608649,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_oversample":{"tests":{"uart_rx_oversample":{"max_time":4.0,"sim_time":4333.911836,"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":87.0,"sim_time":82785.316631,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"stress_all":{"tests":{"uart_stress_all":{"max_time":108.0,"sim_time":476794.41235,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"alert_test":{"tests":{"uart_alert_test":{"max_time":2.0,"sim_time":13.658329,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"intr_test":{"tests":{"uart_intr_test":{"max_time":2.0,"sim_time":17.16779,"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":159.716354,"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":159.716354,"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":16.556046,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":1.0,"sim_time":14.456631999999999,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":2.0,"sim_time":57.654042999999994,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":1.0,"sim_time":30.953374,"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":16.556046,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":1.0,"sim_time":14.456631999999999,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":2.0,"sim_time":57.654042999999994,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":1.0,"sim_time":30.953374,"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":2.0,"sim_time":48.780921,"passed":1,"total":1,"percent":100.0},"uart_tl_intg_err":{"max_time":2.0,"sim_time":191.344739,"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":2.0,"sim_time":191.344739,"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":30.0,"sim_time":3121.434742,"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":88.74,"fsm":100.0},"assertion":97.12,"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:502) scoreboard [scoreboard] rxlvl mismatch exp: * (+/-1), act: *, clk_pulses: *":[{"name":"uart_noise_filter","qual_name":"0.uart_noise_filter.10626489616123695378551463210117612524222501265785646881274814256447408430632","seed":10626489616123695378551463210117612524222501265785646881274814256447408430632,"line":84,"log_path":"/nightly/current_run/scratch/master/uart-sim-xcelium/0.uart_noise_filter/latest/run.log","log_context":["UVM_ERROR @ 3242954912 ps: (uart_scoreboard.sv:462) uvm_test_top.env.scoreboard [uvm_test_top.env.scoreboard] unexpected read when fifo is empty\n","UVM_ERROR @ 3242964912 ps: (uart_scoreboard.sv:532) [uvm_test_top.env.scoreboard] Check failed csr.get_mirrored_value() == item.d_data (0 [0x0] vs 253 [0xfd]) reg name: uart_reg_block.rdata\n","UVM_ERROR @ 3254384912 ps: (uart_scoreboard.sv:379) [uvm_test_top.env.scoreboard] Check failed get_field_val(ral.status.rxempty, item.d_data) == rx_empty_exp (0 [0x0] vs 1 [0x1]) check rx_empty fail: uart_rx_clk_pulses = 0, rx_q.size = 0\n","UVM_ERROR @ 3254484912 ps: (uart_scoreboard.sv:379) [uvm_test_top.env.scoreboard] Check failed get_field_val(ral.status.rxempty, item.d_data) == rx_empty_exp (0 [0x0] vs 1 [0x1]) check rx_empty fail: uart_rx_clk_pulses = 0, rx_q.size = 0\n"]}]}},"passed":26,"total":27,"percent":96.29629629629629}