always @ (posedge clk) begin if (rst) begin seg <= 4'b1111; an <= 3'b111; scan_counter <= 0; password_index <= 0; current_digit <= 4'b0000; is_locked <= 0; show_password <= 0; for (int i = 0; i < password_length; i = i + 1) begin password[i] <= 4'b0000; end end else begin // 数码管扫描 存在Error (10170): Verilog HDL syntax error at password1.v(32) near text ")"; expecting ";"这个错误怎么改,改完之后的代码
时间: 2023-11-22 10:55:29 浏览: 78
这个错误提示是因为 `for` 循环语句后面需要加上分号 `;`,你可以将代码修改为:
```
always @ (posedge clk) begin
if (rst) begin
seg <= 4'b1111;
an <= 3'b111;
scan_counter <= 0;
password_index <= 0;
current_digit <= 4'b0000;
is_locked <= 0;
show_password <= 0;
for (int i = 0; i < password_length; i = i + 1) begin
password[i] <= 4'b0000;
end
end else begin
// 数码管扫描
for (int i = 0; i < 4; i = i + 1) begin
case (i)
0: seg <= password[current_digit + 3];
1: seg <= password[current_digit + 2];
2: seg <= password[current_digit + 1];
3: seg <= password[current_digit];
endcase
case (scan_counter)
0: an <= 3'b111;
1: an <= 3'b110;
2: an <= 3'b101;
3: an <= 3'b011;
endcase
current_digit <= current_digit + 1;
if (current_digit >= password_length) begin
current_digit <= 4'b0000;
end
end
// 密码验证
if (keypad_data_valid) begin
if (password[password_index] == keypad_data) begin
password_index <= password_index + 1;
if (password_index >= password_length) begin
is_locked <= 0;
end
end else begin
password_index <= 0;
is_locked <= 1;
end
keypad_data_valid <= 0;
end
// 显示密码
if (show_password) begin
seg <= password[password_index];
case (scan_counter)
0: an <= 3'b111;
1: an <= 3'b110;
2: an <= 3'b101;
3: an <= 3'b011;
endcase
end
// 数码管扫描计数器
scan_counter <= scan_counter + 1;
if (scan_counter >= 4) begin
scan_counter <= 0;
end
end
end
```
这样就可以消除该错误。
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