期末大作业-增加了字和图片，修复了显示屏影响矩阵键盘和数码管的问题。

由于没有外部中断，所以在系统时钟中断里读取矩阵键盘了。并且在定时器中断里设置时间。把显示屏这个比较耗费时间的部分都放到主函数里。初始化显示屏也比较费时间，所以最后初始化。

但是现在的时间误差还是比较大的。

FinalHomework/Core/Inc/Hanzi.h

@@ -35,7 +35,24 @@ const uint8_t HanziTab[] = /*"
 0x44,0x10,0x88,0x10,0x88,0x08,0x00,0x04,0xFE,0x7F,0x02,0x40,0x01,0x20,0xF8,0x07,
 0x00,0x02,0x80,0x01,0xFF,0x7F,0x80,0x00,0x80,0x00,0x80,0x00,0xA0,0x00,0x40,0x00,/*"ѧ",13*/
 0x00,0x02,0x1E,0x04,0xD2,0x7F,0x4A,0x40,0x2A,0x20,0x86,0x1F,0x0A,0x00,0x12,0x00,
-0xD2,0x7F,0x12,0x09,0x16,0x09,0x0A,0x09,0x82,0x48,0x82,0x48,0x42,0x70,0x22,0x00};/*"Ժ",14*/
+0xD2,0x7F,0x12,0x09,0x16,0x09,0x0A,0x09,0x82,0x48,0x82,0x48,0x42,0x70,0x22,0x00,/*"Ժ",14*/
+
+0x00,0x04,0xFE,0x05,0x12,0x04,0x12,0x04,0x12,0x04,0xFE,0x0C,0x82,0x14,0x82,0x24,
+0x82,0x44,0xFE,0x44,0x12,0x04,0x12,0x04,0x12,0x04,0xFE,0x05,0x00,0x04,0x00,0x04,/*"<22><>",15*/
+/* (16 X 16 , <20><><EFBFBD><EFBFBD> )*/
+
+0x08,0x09,0x08,0x09,0xE8,0x7F,0x08,0x09,0xDF,0x3F,0x48,0x29,0xCC,0x3F,0x5C,0x29,
+0xEA,0x3F,0x0A,0x00,0x89,0x1F,0x88,0x10,0x88,0x1F,0x88,0x10,0x88,0x1F,0x88,0x10,/*"<22><>",16*/
+/* (16 X 16 , <20><><EFBFBD><EFBFBD> )*/
+
+0x80,0x00,0x88,0x00,0x88,0x00,0x88,0x00,0xF8,0x1F,0x84,0x00,0x82,0x00,0x80,0x00,
+0x80,0x00,0xFF,0x7F,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,/*"ţ",17*/
+/* (16 X 16 , <20><><EFBFBD><EFBFBD> )*/
+
+0x00,0x00,0xE4,0x3F,0x08,0x00,0xC8,0x1F,0x40,0x10,0xC0,0x1F,0x0F,0x00,0xE8,0x3F,
+0x28,0x22,0xE8,0x3F,0x28,0x22,0xE8,0x3F,0x28,0x20,0x14,0x00,0xE2,0x7F,0x00,0x00};/*"<22><>",18*/
+/* (16 X 16 , <20><><EFBFBD><EFBFBD> )*/
+
 
 
 uint16_t const ScanTab[] =