基于fgpa的二人抢答器代码

基于FPGA的二人抢答器代码需要使用硬件描述语言来实现，比如Verilog或VHDL。以下是一个简单的Verilog代码示例，实现了一个双人抢答器，其中包括两个抢答器按钮和一个状态机。状态机负责确定哪个学生先回答问题，并在每次回答后切换到下一个学生。

module two_player_quizzer(
  input clk,
  input rst,
  input btn1,
  input btn2,
  output reg led1,
  output reg led2
);

// 状态机定义
typedef enum logic [1:0] {PLAYER1, PLAYER2} player_state;
reg [1:0] curr_player, next_player;
parameter DELAY = 1000;

// 状态转移逻辑
always @(posedge clk) begin
  if(rst) begin
    curr_player <= PLAYER1;
    next_player <= PLAYER2;
    led1 <= 0;
    led2 <= 0;
  end else begin
    led1 <= (curr_player == PLAYER1);
    led2 <= (curr_player == PLAYER2);
    if(btn1 && curr_player == PLAYER1) begin
      next_player <= PLAYER2;
    end else if(btn2 && curr_player == PLAYER2) begin
      next_player <= PLAYER1;
    end else begin
      next_player <= curr_player;
    end
    curr_player <= next_player;
  end
end

endmodule

这只是一个简单的示例，实际的抢答器代码可能更加复杂，需要根据具体的应用场景进行设计和优化。同时还需要注意硬件的设计和调试，以确保抢答器的稳定性和可靠性。