{"block":{"name":"uart","variant":null,"commit":"c776b8bb962bbe71c838cf55bf5efe84cffe3f95","commit_short":"c776b8b","branch":"master","url":"https://github.com/lowRISC/opentitan/tree/c776b8bb962bbe71c838cf55bf5efe84cffe3f95","revision_info":"GitHub Revision: [`c776b8b`](https://github.com/lowrisc/opentitan/tree/c776b8bb962bbe71c838cf55bf5efe84cffe3f95)"},"tool":{"name":"vcs","version":"unknown"},"timestamp":"2026-04-30T15:30:31Z","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":1.49,"sim_time":686.8040940000001,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_hw_reset":{"tests":{"uart_csr_hw_reset":{"max_time":0.66,"sim_time":16.283396,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_rw":{"tests":{"uart_csr_rw":{"max_time":0.67,"sim_time":37.695198,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_bit_bash":{"tests":{"uart_csr_bit_bash":{"max_time":1.93,"sim_time":1682.322792,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_aliasing":{"tests":{"uart_csr_aliasing":{"max_time":1.06,"sim_time":62.802921000000005,"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":0.79,"sim_time":34.526359,"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":0.67,"sim_time":37.695198,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":1.06,"sim_time":62.802921000000005,"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":87.89,"sim_time":184541.340429,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"parity":{"tests":{"uart_smoke":{"max_time":1.49,"sim_time":686.8040940000001,"passed":1,"total":1,"percent":100.0},"uart_tx_rx":{"max_time":87.89,"sim_time":184541.340429,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"parity_error":{"tests":{"uart_intr":{"max_time":10.15,"sim_time":9862.189188999999,"passed":1,"total":1,"percent":100.0},"uart_rx_parity_err":{"max_time":5.94,"sim_time":51811.18416,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"watermark":{"tests":{"uart_tx_rx":{"max_time":87.89,"sim_time":184541.340429,"passed":1,"total":1,"percent":100.0},"uart_intr":{"max_time":10.15,"sim_time":9862.189188999999,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"fifo_full":{"tests":{"uart_fifo_full":{"max_time":136.6,"sim_time":365055.135181,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_overflow":{"tests":{"uart_fifo_overflow":{"max_time":83.6,"sim_time":73111.31707199999,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_reset":{"tests":{"uart_fifo_reset":{"max_time":10.76,"sim_time":37549.644287,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_frame_err":{"tests":{"uart_intr":{"max_time":10.15,"sim_time":9862.189188999999,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_break_err":{"tests":{"uart_intr":{"max_time":10.15,"sim_time":9862.189188999999,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_timeout":{"tests":{"uart_intr":{"max_time":10.15,"sim_time":9862.189188999999,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"perf":{"tests":{"uart_perf":{"max_time":14.8,"sim_time":1544.663018,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"sys_loopback":{"tests":{"uart_loopback":{"max_time":6.16,"sim_time":6354.534569,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"line_loopback":{"tests":{"uart_loopback":{"max_time":6.16,"sim_time":6354.534569,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_noise_filter":{"tests":{"uart_noise_filter":{"max_time":7.55,"sim_time":12482.417079,"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":34.02,"sim_time":35000.719839000005,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tx_overide":{"tests":{"uart_tx_ovrd":{"max_time":1.14,"sim_time":681.617727,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_oversample":{"tests":{"uart_rx_oversample":{"max_time":2.22,"sim_time":1487.345562,"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":333.38,"sim_time":103371.845941,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"stress_all":{"tests":{"uart_stress_all":{"max_time":138.36,"sim_time":56278.358222,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"alert_test":{"tests":{"uart_alert_test":{"max_time":0.66,"sim_time":22.476934,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"intr_test":{"tests":{"uart_intr_test":{"max_time":0.67,"sim_time":14.953263999999999,"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":1.08,"sim_time":62.384456,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tl_d_illegal_access":{"tests":{"uart_tl_errors":{"max_time":1.08,"sim_time":62.384456,"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":0.66,"sim_time":16.283396,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":0.67,"sim_time":37.695198,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":1.06,"sim_time":62.802921000000005,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":0.81,"sim_time":28.599558000000002,"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":0.66,"sim_time":16.283396,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":0.67,"sim_time":37.695198,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":1.06,"sim_time":62.802921000000005,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":0.81,"sim_time":28.599558000000002,"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":0.98,"sim_time":129.018397,"passed":1,"total":1,"percent":100.0},"uart_tl_intg_err":{"max_time":0.86,"sim_time":86.265534,"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":0.86,"sim_time":86.265534,"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":24.75,"sim_time":10505.127316,"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":98.86,"branch":96.27,"condition_expression":92.07,"toggle":91.55,"fsm":null},"assertion":97.12,"functional":50.28},"cov_report_page":"/nightly/current_run/scratch/master/uart-sim-vcs/cov_report/dashboard.html","vplan_report_page":null,"vplan_coverage":null,"failed_jobs":{"buckets":{"UVM_ERROR (uart_scoreboard.sv:501) scoreboard [scoreboard] rxlvl mismatch exp: * (+/-1), act: *, clk_pulses: *":[{"name":"uart_noise_filter","qual_name":"0.uart_noise_filter.43763978549645904065944330297266775872440056479465546581649635500325684660537","seed":43763978549645904065944330297266775872440056479465546581649635500325684660537,"line":77,"log_path":"/nightly/current_run/scratch/master/uart-sim-vcs/0.uart_noise_filter/latest/run.log","log_context":["UVM_ERROR @ 9113607295 ps: (uart_scoreboard.sv:462) uvm_test_top.env.scoreboard [uvm_test_top.env.scoreboard] unexpected read when fifo is empty\n","UVM_ERROR @ 9113627703 ps: (uart_scoreboard.sv:531) [uvm_test_top.env.scoreboard] Check failed csr.get_mirrored_value() == item.d_data (194 [0xc2] vs 255 [0xff]) reg name: uart_reg_block.rdata\n","UVM_ERROR @ 9192545439 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 @ 9192545439 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"]}]}},"passed":26,"total":27,"percent":96.29629629629629}