状态图绘制软件的使用---Gvedit

1.编写状态图文本
digraph finite_state_machine {
    rankdir=LR;
    size="40,15"
    node [shape = doublecircle]; INIT_STATE FAIL_STATE;
    node [shape = circle];
    INIT_STATE -> ASSERT_RESETS_STATE [label = "init_period_done=1"];
    INIT_STATE -> INIT_STATE [label = "init_period_done=0"];
    DRP_REQ_FULL_STATE -> DRP_WAIT_STATE;
    DRP_REQ_NO_PLL_STATE -> DRP_WAIT_STATE;
    DRP_WAIT_STATE -> DRP_CHECK_STATE;
    DRP_CHECK_STATE -> ASSERT_RESETS_STATE [label = "drp_busy_in=0"];
    DRP_CHECK_STATE -> RETRY2_STATE [label = "drp_busy_in=1&reset_timeout=1"];
    DRP_CHECK_STATE -> DRP_CHECK_STATE [label = "drp_busy_in=1&reset_timeout=0"];
    ASSERT_RESETS_STATE -> ASSERT_RESETS_STATE [label = "(~refclk_stable_s | full_reset | gtrxreset_in)=1"];
    ASSERT_RESETS_STATE -> RELEASE_PLLRESET_STATE [label = "(~refclk_stable_s | full_reset | gtrxreset_in=0)"];
    RELEASE_PLLRESET_STATE -> PLL_LOCKED_STATE [label = "pll_lock_s"];
    RELEASE_PLLRESET_STATE -> RETRY_STATE [label = "pll_lock_s=0&plllock_timeout=1"];
    RELEASE_PLLRESET_STATE -> RELEASE_PLLRESET_STATE [label = "pll_lock_s=0&plllock_timeout=0"];
    PLL_LOCKED_STATE -> WAIT_RESET_DONEX_STATE;
    WAIT_RESET_DONEX_STATE -> WAIT_RESET_DONE_STATE [label = "rxresetdone_s=0"];
    WAIT_RESET_DONEX_STATE -> RETRY_STATE [label = "rxresetdone=1&reset_timeout=1"];
    WAIT_RESET_DONEX_STATE -> WAIT_RESET_DONEX_STATE [label = "rxresetdone_s=1&reset_timeout=0"];
    WAIT_RESET_DONE_STATE -> DONE_STATE [label = "rxresetdone_s=1"];
    WAIT_RESET_DONE_STATE -> RETRY_STATE [label = "rxresetdone_s=0&reset_timeout=1"];
    WAIT_RESET_DONE_STATE -> WAIT_RESET_DONE_STATE [label = "rxresetdone_s=0&reset_timeout=0"];
    DONE_STATE -> DRP_REQ_FULL_STATE [label = "full_reset=1"];
    DONE_STATE -> DRP_REQ_NO_PLL_STATE [label = "full_reset=0&gtrxreset_in=1"];
    DONE_STATE -> DONE_STATE [label = "full_reset=0&gtrxreset_in=0"];
    RETRY_STATE -> CHECK_RETRIES_STATE;
    CHECK_RETRIES_STATE -> FAIL_STATE [label = "max_retries=1"];
    CHECK_RETRIES_STATE -> WAIT_RESET_DONE_STATE [label = "max_retries=0 &(post_config | pll_lock_s) = 1"];
    CHECK_RETRIES_STATE -> RELEASE_PLLRESET_STATE [label = "max_retries=0&(post_config | pll_lock_s) = 0"];
    RETRY2_STATE -> CHECK_RETRIES2_STATE;
    CHECK_RETRIES2_STATE -> FAIL_STATE [label = "max_retries=1"];
    CHECK_RETRIES2_STATE -> DRP_CHECK_STATE [label = "max_retries=0"];
    FAIL_STATE -> DRP_REQ_FULL_STATE [label = "full_reset=1"];
    FAIL_STATE -> FAIL_STATE [label = "full_reset=0"];
}
运行结果为：