EDA16x16点阵滚动+动画显示Word格式文档下载.docx

EDA16x16点阵滚动+动画显示Word格式文档下载.docx

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end;

architectureoneofxianshiis

signalsel:

std_logic_vector（3downto0）;

signalq:

std_logic_vector（31downto0）;

signali:

integerrange0to31;

signalcoi:

std_logic;

begin

process（sel,clk1）

begin

caseselis

when"

0000"

=>

q<

="

00000100000000000111111111111111"

;

0001"

00000100000000011011111111111111"

0010"

00100100000000011101111111111111"

0011"

00100101111110101110111111111111"

0100"

00100101010100101111011111111111"

0101"

11111101010101001111101111111111"

0110"

00100101010100001111110111111111"

0111"

00100111111100001111111011111111"

1000"

00100101010100001111111101111111"

1001"

11111101010101001111111110111111"

1010"

00100101010101001111111111011111"

1011"

01100111111100101111111111101111"

1100"

00100100100000101111111111110111"

1101"

00001100000000011111111111111011"

1110"

00000100000000001111111111111101"

1111"

00000000000000001111111111111110"

whenothers=>

null;

endcase;

ifclk1'

eventandclk1='

1'

then

si<

=q（i）;

i<

=i+1;

coi<

='

0'

ifi=31theni<

=0;

sel<

=sel+'

endif;

rck<

=notcoi;

endprocess;

sck<

=clk1;

时序仿真：

从图中可以看出，当clk1在第32个上升沿rck变为低电频，sck与clk1是同一电频，故此程序满足要求。

2、多个字符的跳动显示（如：

黄小红）：

port（clk1:

clk2:

signallie:

process（sel,clk1,clk2）

ifclk2'

eventandclk2='

then

lie<

=lie+'

caselieis

when"

caseselis

00000000000000000111111111111111"

00000000000100001011111111111111"

00000000001000001101111111111111"

00000000010000001110111111111111"

00000001100000001111011111111111"

00000110000000101111101111111111"

00000000000000011111110111111111"

11111111111111101111111011111111"

00000000000000001111111101111111"

00000100000000001111111110111111"

00000010000000001111111111011111"

00000001000000001111111111101111"

00000000100000001111111111110111"

00000000011000001111111111111011"

00000000000000001111111111111101"

00000100010001000111111111111111"

00001100111001101011111111111111"

00110101010001001101111111111111"

11000110010010001110111111111111"

00000100010010001111011111111111"

00001000010010101111101111111111"

00100000000000101111110111111111"

00100000000000101111111011111111"

00100000000000101111111101111111"

00100000000000101111111110111111"

00111111111111101111111111011111"

00100000000000101111111111101111"

01100000000000101111111111110111"

00100000000001101111111111111011"

00000000000000101111111111111101"

whenothers=>

从上图看出，当clk1在第32个上升沿rck变为低电频，sck与clk1是同一电频，故此程序满足要求。

3、汉字的滚动和动画显示（如：

黄小红+笑脸）：

11