{"block":{"name":"uart","variant":null,"commit":"a22166c3c57d87a3cec488a8c6f8de1dba3dada7","commit_short":"a22166c","dirty":false,"branch":"master","url":"https://github.com/lowRISC/opentitan/tree/a22166c3c57d87a3cec488a8c6f8de1dba3dada7","revision_info":"GitHub Revision: [`a22166c`](https://github.com/lowrisc/opentitan/tree/a22166c3c57d87a3cec488a8c6f8de1dba3dada7)"},"tool":{"name":"vcs","version":"unknown"},"timestamp":"2026-07-22T15:30:29Z","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":13.76,"sim_time":6066.575698,"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":36.581652000000005,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_rw":{"tests":{"uart_csr_rw":{"max_time":0.66,"sim_time":21.537454,"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":313.275474,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"csr_aliasing":{"tests":{"uart_csr_aliasing":{"max_time":0.82,"sim_time":113.750613,"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":0.76,"sim_time":42.361642999999994,"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":0.66,"sim_time":21.537454,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":0.82,"sim_time":113.750613,"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":12.65,"sim_time":124672.190276,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"parity":{"tests":{"uart_smoke":{"max_time":13.76,"sim_time":6066.575698,"passed":1,"total":1,"percent":100.0},"uart_tx_rx":{"max_time":12.65,"sim_time":124672.190276,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"parity_error":{"tests":{"uart_intr":{"max_time":24.59,"sim_time":57307.308648,"passed":1,"total":1,"percent":100.0},"uart_rx_parity_err":{"max_time":113.21,"sim_time":154471.1055,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"watermark":{"tests":{"uart_tx_rx":{"max_time":12.65,"sim_time":124672.190276,"passed":1,"total":1,"percent":100.0},"uart_intr":{"max_time":24.59,"sim_time":57307.308648,"passed":1,"total":1,"percent":100.0}},"passed":2,"total":2,"percent":100.0},"fifo_full":{"tests":{"uart_fifo_full":{"max_time":38.88,"sim_time":427793.241217,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_overflow":{"tests":{"uart_fifo_overflow":{"max_time":24.73,"sim_time":128865.12291900002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"fifo_reset":{"tests":{"uart_fifo_reset":{"max_time":19.21,"sim_time":13695.467465,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_frame_err":{"tests":{"uart_intr":{"max_time":24.59,"sim_time":57307.308648,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_break_err":{"tests":{"uart_intr":{"max_time":24.59,"sim_time":57307.308648,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_timeout":{"tests":{"uart_intr":{"max_time":24.59,"sim_time":57307.308648,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"perf":{"tests":{"uart_perf":{"max_time":541.56,"sim_time":22695.081511999997,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"sys_loopback":{"tests":{"uart_loopback":{"max_time":0.79,"sim_time":206.55569200000002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"line_loopback":{"tests":{"uart_loopback":{"max_time":0.79,"sim_time":206.55569200000002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_noise_filter":{"tests":{"uart_noise_filter":{"max_time":4.13,"sim_time":16920.982178,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_start_bit_filter":{"tests":{"uart_rx_start_bit_filter":{"max_time":2.26,"sim_time":4588.503438,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"tx_overide":{"tests":{"uart_tx_ovrd":{"max_time":2.57,"sim_time":1230.4448060000002,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"rx_oversample":{"tests":{"uart_rx_oversample":{"max_time":21.37,"sim_time":5398.588559000001,"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":216.51,"sim_time":119835.474235,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"stress_all":{"tests":{"uart_stress_all":{"max_time":53.57,"sim_time":65956.509169,"passed":0,"total":1,"percent":0.0}},"passed":0,"total":1,"percent":0.0},"alert_test":{"tests":{"uart_alert_test":{"max_time":0.78,"sim_time":19.256201,"passed":1,"total":1,"percent":100.0}},"passed":1,"total":1,"percent":100.0},"intr_test":{"tests":{"uart_intr_test":{"max_time":0.71,"sim_time":19.847221,"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":106.16757700000001,"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":106.16757700000001,"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":36.581652000000005,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":0.66,"sim_time":21.537454,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":0.82,"sim_time":113.750613,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":0.69,"sim_time":19.841163,"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":36.581652000000005,"passed":1,"total":1,"percent":100.0},"uart_csr_rw":{"max_time":0.66,"sim_time":21.537454,"passed":1,"total":1,"percent":100.0},"uart_csr_aliasing":{"max_time":0.82,"sim_time":113.750613,"passed":1,"total":1,"percent":100.0},"uart_same_csr_outstanding":{"max_time":0.69,"sim_time":19.841163,"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":0.78,"sim_time":165.497841,"passed":1,"total":1,"percent":100.0},"uart_tl_intg_err":{"max_time":1.1,"sim_time":76.825654,"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":1.1,"sim_time":76.825654,"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":24.57,"sim_time":9908.097357999999,"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":95.22,"toggle":74.67,"fsm":null},"assertion":98.27,"functional":50.33},"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_stress_all","qual_name":"0.uart_stress_all.12711979389275109971117791478439406393292256688171685785404871711260594858328","seed":12711979389275109971117791478439406393292256688171685785404871711260594858328,"line":193,"log_path":"/nightly/current_run/scratch/master/uart-sim-vcs/0.uart_stress_all/latest/run.log","log_context":["UVM_ERROR @ 65627050710 ps: (uart_scoreboard.sv:462) uvm_test_top.env.scoreboard [uvm_test_top.env.scoreboard] unexpected read when fifo is empty\n","UVM_ERROR @ 65627061127 ps: (uart_scoreboard.sv:531) [uvm_test_top.env.scoreboard] Check failed csr.get_mirrored_value() == item.d_data (0 [0x0] vs 251 [0xfb]) reg name: uart_reg_block.rdata\n","UVM_ERROR @ 65695667489 ps: (uart_scoreboard.sv:501) uvm_test_top.env.scoreboard [uvm_test_top.env.scoreboard] rxlvl mismatch exp: 0 (+/-1), act: 4,                                 clk_pulses: 0\n","UVM_ERROR @ 65695688323 ps: (uart_scoreboard.sv:462) uvm_test_top.env.scoreboard [uvm_test_top.env.scoreboard] unexpected read when fifo is empty\n"]}]}},"passed":26,"total":27,"percent":96.29629629629629}