Question

单片机控制的16*16点阵显示汉字，为什么出现的字体是镜像的？怎么改正？

DJNZ R4,CM ;96列未移动完，继续
AJMP MAIN ;96列移动完，返回，重新从“凤”开始显示
D1MS: MOV R6,#2
MOV R7,#248
DJNZ R7,$
DJNZ R6,$-4
RET
TAB: DB 010H,000H,0F8H,03FH,010H,020H,010H,020H,0F0H,02FH,050H,020H,050H,028H,090H,024H;
DB 090H,022H,010H,021H,090H,022H,0D0H,024H,050H,028H,012H,020H,00AH,040H,006H,080H;"凤",
DB 010H,000H,0F8H,01FH,010H,010H,010H,012H,010H,011H,010H,011H,014H,010H,0FEH,0FFH;
DB 010H,010H,010H,010H,010H,010H,010H,010H,010H,010H,010H,010H,050H,020H,020H,040H;"丹",0
DB 000H,008H,07CH,004H,0C4H,0FFH,044H,000H,048H,03FH,048H,021H,050H,021H,048H,03FH;
DB 044H,000H,042H,07FH,042H,002H,062H,004H,054H,0FFH,048H,004H,040H,014H,040H,008H;"郭",1
DB 008H,000H,0FCH,03FH,008H,020H,0F8H,03FH,008H,020H,0F8H,03FH,000H,001H,008H,021H;
DB 0FCH,03FH,000H,021H,010H,041H,0F8H,0BFH,000H,001H,004H,001H,0FEH,0FFH,000H,000H;"星",2
DB 000H,001H,008H,001H,0FCH,07FH,000H,001H,040H,005H,030H,009H,00EH,031H,004H,0C1H;
DB 0E0H,00FH,040H,000H,088H,001H,0FCH,07FH,000H,001H,000H,001H,000H,005H,000H,002H;"李",3
DB 010H,000H,0F8H,01FH,010H,010H,010H,012H,010H,011H,010H,011H,014H,010H,0FEH,0FFH;
DB 010H,010H,010H,010H,010H,010H,010H,010H,010H,010H,010H,010H,050H,020H,020H,040H;"丹",4
END

Answer 1

肯定是取点阵时扫描方向搞反了，改正方法：调整取模方向，如原来是＂逆向＂，改为＂顺向＂，或反之，重新生成字模，而不是简单地将上面的字模数据顺序调整

 

Answer 2

单片机控制的16*16点阵显示汉字，出现字体是镜像的现象是由于取点阵时扫描方向搞反了。改正方法是逆序读点阵数组数据，即原来从数组0下标开始读改为从下标15开始倒着读，写的顺序不变，就矫正了。

追问

逆序试了 显示的也不对

追答

DB 00H,00H,FCH,1FH,04H,10H,04H,10H,F4H,13H,04H,12H,14H,12H,24H,11H;
DB 44H,11H,84H,10H,44H,11H,24H,52H,14H,52H,02H,50H,02H,60H,01H,40H;"凤",0

DB 00H,00H,F8H,0FH,08H,08H,08H,08H,48H,08H,88H,08H,88H,08H,08H,08H;
DB FFH,7FH,08H,08H,08H,08H,08H,08H,04H,08H,04H,08H,02H,0AH,01H,04H;"丹",1

DB 08H,00H,10H,3EH,FFH,22H,00H,12H,7EH,12H,42H,0AH,7EH,12H,00H,12H;
DB 7EH,22H,20H,22H,10H,22H,F0H,16H,1FH,0AH,10H,02H,14H,02H,08H,02H;"郭",2

DB 00H,00H,F8H,0FH,08H,08H,F8H,0FH,08H,08H,F8H,0FH,80H,00H,88H,00H;
DB F8H,1FH,84H,00H,82H,00H,F8H,0FH,80H,00H,80H,00H,FEH,3FH,00H,00H;"星",3

DB 80H,00H,80H,00H,FEH,3FH,C0H,01H,A0H,02H,90H,04H,8CH,18H,83H,60H;
DB F0H,07H,00H,02H,00H,01H,FFH,7FH,80H,00H,80H,00H,A0H,00H,40H,00H;"李",4

DB 00H,00H,F8H,0FH,08H,08H,08H,08H,48H,08H,88H,08H,88H,08H,08H,08H;
DB FFH,7FH,08H,08H,08H,08H,08H,08H,04H,08H,04H,08H,02H,0AH,01H,04H;"丹",5

你再试试。

追问

嗯嗯 好了 谢谢

Answer 3

16 X 16 点阵是双字节数据。
（1）显示程序不变，把点阵字符数据镜像：
把 D15 与 D0、D14 与 D1、D13 与 D2、D12 与 D3 。。。对调。
如：12E8H = 0001 0010 1110 1000
改成 0001 0111 0100 1000 = 1748H 。
（2）如果数据是串行送显示，点阵字符数据不变，改变数据传输次序：
如：原来是高位在前，改为低位在前。D15 、D14、。。。D0 改成 D0、D1、。。。D15。
（3）把显示屏的接线镜像对调。

如果你的字符库是标准字库，应该采用（2）或（3）的方法。

追问

不是太懂  是把AT89C51上的数字即高地位改一下吗 如下：

追答

如果你只是在面包板上做实验，可以这样改。
W1 与 W16、W2 与 W15、W3 与 W14 。。。对调。