基于STM32的小说阅读器

1.硬件平台

• CPU：STM32F103ZE
• 屏幕：3.5寸TFTLCD屏
• 触控：电阻式触摸屏xpt2046
• SD卡

2.实现功能

  1.SD卡设备检测，文件系统移植，用户存储小说和字库文件；
  2.字库信息加载检测，自动完成字库信息加载与更新。本次采用GBK字库，字体大小有16*16、24*24、32*32三个字库；
  3.触摸屏校准，上电检测触摸屏校准信息；手动进入触摸屏校准模式
  4.小说文件索引，小说文本切换；
  5.小说翻页，字体大小选择，颜色选择，返回主目录；

3.示例效果

 SD卡检测和触摸屏校准

 字库检测与更新

 目录和小说显示界面

 颜色切换

 字体选择

4.软件设计

 1.SD卡字库更新加载

/***********************SD卡字库更新***********************/u8 SDcard_DownFont(const TCHAR* path,u32 addr,u16 font_size){  FIL fp;  u8 res;  UINT br;  u32 size;  u32 cnt=0;u16 y=0;float load=0,load2=0;  u8 buff[1024];char buff2[20];  /*1.读取文件大小*/  FILINFO file_info;  f_stat(path,&file_info);  size=file_info.fsize;  if(size==0)return 1;  //printf("文件大小:%u byte\r\n",size);  /*2.打开文件*/  res=f_open(&fp,path,FA_READ);  if(res)  {   // printf("文件打开失败res=%d\r\n",res);    return 2;  }W25Q64_WriteData(addr-10,(u8 *)" ",9);//清除标志位if(font_size==16)y=100;else if(font_size==24)y=140;else if(font_size==32)y=180;LCD_Display_Str2(20,y,16,(u8 *)"更新进度:",BLACK,WHITE);LCD_Refresh();  while(1)  {    f_read(&fp,buff,1024,&br);    W25Q64_WriteData(addr+cnt,buff,br);    cnt+=br;load=(cnt*1.0/size)*100;if(load!=load2){load2=load;LCD_Display_Str2(30+strlen("更新进度")/2*16,y,16,(u8 *)" ",WHITE,WHITE);snprintf(buff2,sizeof(buff2),"%.1f %%",load2);LCD_Display_Str2(30+strlen("更新进度")/2*16,y,16,(u8 *)buff2,RED,WHITE);LCD_Refresh();}    //printf("更新进度:%d\r\n",cnt);    if(br!=1024)break;  }/*写入标志位*/if(font_size==16){strcpy((char *)buff,"GBK16_OK");}else if(font_size==24){strcpy((char *)buff,"GBK24_OK");}else if(font_size==32){strcpy((char *)buff,"GBK32_OK");}W25Q64_WriteData(addr-10,buff,9);//GBK16_OK  f_close(&fp);//关闭文件return 0;}

 2.获取小说文件信息

/*SD卡操作函数*/typedef struct FILE_info{char file_name[100];u32 file_size;u16 y;/*在屏幕位置*/struct FILE_info *next;struct FILE_info *pre;}FILE_INFO;FILE_INFO *story_head=NULL;/*创建链表*/FILE_INFO *List_CreateHead(FILE_INFO *head){if(head!=NULL)return head;head=malloc(sizeof(FILE_INFO));head->next=NULL;head->pre=NULL;return head;}/*添加节点*/FILE_INFO *List_AddNode(FILE_INFO *head){if(head==NULL)return NULL;//链表头不存在FILE_INFO *phead=head;while(phead->next!=NULL){phead=phead->next;}FILE_INFO *new_node=malloc(sizeof(FILE_INFO));new_node->pre=phead;phead->next=new_node;new_node->next=NULL;return new_node;}/*遍历节点*/void List_PrintNode(FILE_INFO *head){u16 x=20,y=50;LCD_Display_Str2(LCD_WIDTH/2-24,10,16,(u8 *)"书 架",BLACK,WHITE);if(head==NULL)return ;//链表头不存在FILE_INFO *phead=head;while(phead->next!=NULL){phead=phead->next;phead->y=y;LCD_Display_Str2(x,phead->y,16,(u8 *)phead->file_name,DARKBLUE,WHITE);//显示字符串y+=35;//printf("%s,%d\r\n",phead->file_name,phead->file_size);}LCD_Refresh();}u16 List_CheckNode(FILE_INFO *head,u16 y,u8 *file_name){if(head==NULL)return 0;//链表头不存在FILE_INFO *phead=head;while(phead->next!=NULL){phead=phead->next;if(y<=phead->y+26 && y>=phead->y-5){strcpy((char *)file_name,phead->file_name);return phead->y;}}return 0;//未找到 }/*************************************目录遍历(读取小说文件信息)************************/u8 FATFS_printDir(const TCHAR* path){  DIR dp;  u8 res;u8 stat=0;story_head=List_CreateHead(story_head);//创建链表头  res=f_opendir(&dp,path);  FILINFO file_info;  if(res)  {    printf("打开目录失败res=%d\r\n",res);free(story_head);//释放链表头    return 1;  }FILE_INFO *temp=NULL;  while(1)  {    res=f_readdir(&dp,&file_info);    if(res!=FR_OK || file_info.fname[0]==0)break;if(strstr(file_info.fname,".txt")){temp=List_AddNode(story_head);if(temp==NULL){stat=2;//动态分配空间失败goto AA;}//printf("文件名:%s,",file_info.fname);strcpy(temp->file_name,file_info.fname);//文件名if(file_info.fattrib == AM_ARC)//普通文件{temp->file_size=file_info.fsize;//文件大小//printf("文件大小:%u byte\r\n",file_info.fsize);}}  }AA:f_closedir(&dp);//关闭目录List_PrintNode(story_head);return stat;}

 3.读取小说内容，翻页，字体选择、颜色切换

/*打开小说*/u8 buff_read[4098];const u16 font_corlour[]={BLACK,BLUE,RED,LIGHTGREEN};void FATFS_ReadFile(const char *file_name){FIL fp;//文件指针u8 res=0;UINT br;u32 font_buff[20];//保存每页字节数据u16 font_cnt=0;u16 font_len=0;u16 font_size=16;//字体大小u16 x=0,y=20;u8 corlour=0;char name[100];snprintf(name,sizeof(name),"0:/Text/%s",file_name);res=f_open(&fp,name,FA_READ);//打开文件if(res){printf("文件打开失败res=%d\r\n",res);return ;}u8 *p;u16 x1,y1;u8 stat=0;while(1){if(stat){buff_read[0]=stat;stat=0;res=f_read(&fp,&buff_read[1],4095,&br);br++;buff_read[br]='\0';}else{res=f_read(&fp,buff_read,4096,&br);buff_read[br]='\0';}p=buff_read;while(*p){font_len=LCD_Display_Str(x,y,font_size,p,font_corlour[corlour]);//显示字符串LCD_Refresh();while(1){res=XPT2046_ReadXY();//触摸屏检测if(res){x1=xpt2046_info.x;y1=xpt2046_info.y;while(T_PEN==0){}//等待松开//printf("x1=%d,y1=%d\r\n",x1,y1);if((x1>=212 && x1<=320) && (y1>=416 && y1<=480))//返回{LcdFill(0,0,320,480,WHITE);List_PrintNode(story_head);return ;}else if((x1>=106 && x1<=210) && (y1>=416 && y1<=480))//字体颜色{corlour++;if(corlour>=4)corlour=0;LcdFill(0,0,320,410,WHITE);break;}else if((x1>=1 && x1<=105) && (y1>=416 && y1<=480))//字体大小调节{if(font_size==16)font_size=24;else if(font_size==24)font_size=32;else if(font_size==32)font_size=16;LcdFill(0,0,320,410,WHITE);break;}else if(x1>160 && y1<=380){p+=font_len&0x7fff;if(*p!='\0'){font_buff[font_cnt++]=font_len&0x7fff;LcdFill(0,0,320,410,WHITE);break;}else {if(font_len&0x8000){stat=*(p-1);}LcdFill(0,0,320,410,WHITE);break;}}else if(x1<160 && y1<=380){if(p!=buff_read && font_cnt>0){font_cnt--;p-=font_buff[font_cnt];LcdFill(0,0,320,410,WHITE);break;}}}}}font_cnt=0;memset(buff_read,0,sizeof(buff_read));if(br!=4096)break;}}

 4.主函数main.c，硬件初始化，触摸屏校准，字体检测与更新，主界面显示

#include "stm32f10x.h"#include "beep.h"#include "led.h"#include "key.h"#include "delay.h"#include "usart.h"#include "w25q64.h"#include "at24c08.h"#include "timer.h"#include #include "xpt2046.h"#include "nt35310.h"#include "sram.h"#include #include "ff.h"//文件系统头文件#include "sdcard.h"u8 SDcard_DownFont(const TCHAR* path,u32 addr,u16 font_size);//字库更新u8 FATFS_printDir(const TCHAR* path);//遍历目录u16 List_CheckNode(FILE_INFO *head,u16 y,u8 *file_name);//查找文件void FATFS_ReadFile(const char *file_name);//读文件FATFS fs;int main(){u16 y=0;char buff[30];  u8 res=0;  Beep_Init();  Led_Init();  Key_Init();  Usartx_Init(USART1,115200,72);  printf("串口初始化完成\r\n");  W25Q64_Init();  IIC_Init();  LCD_Init();  Sram_Init();  XPT2046_Init();//初始化Touch_Calibration();AA:LCD_Clear(WHITE);//清屏函数LCD_Refresh();LCD_Display_Str2(20,20,16,(u8 *)"SD卡状态",RED,WHITE);  res=f_mount(&fs,"0:",1);//磁盘挂载  if(res){printf("SD卡挂载失败ERR=%d\r\n",res);snprintf(buff,sizeof(buff),"err%d",res);LCD_Display_Str2(20+strlen("SD卡状态")*12+20,20,16,(u8 *)buff,RED,WHITE);LCD_Display_Str2(20,50,16,(u8 *)"请检查SD卡是否插入!",RED,WHITE);LCD_Refresh();Delay_Ms(500);goto AA;}else LCD_Display_Str2(20+strlen("SD卡状态")*12+20,20,16,(u8 *)"OK",RED,WHITE);/*字库检测*/LCD_Display_Str2(LCD_WIDTH/2-strlen("字库检测")/2*16,40,16,(u8 *)"字库检测",RED,WHITE);LCD_Refresh();GBK_16:W25Q64_ReadData(GBK_16_ADDR-10,(u8*)buff,9);//GBK16_OKif(strstr(buff,"GBK16_OK")){LCD_Display_Str2(20,60,16,(u8 *)"GBK16    OK",RED,WHITE);LCD_Refresh();}else {LCD_Display_Str2(20,60,16,(u8 *)"GBK16    NO",RED,WHITE);LCD_Display_Str2(LCD_WIDTH/2-strlen("更新GBK16字库")/2*16,80,16,(u8 *)"更新GBK16字库",RED,WHITE);LCD_Refresh();if(SDcard_DownFont("0:/font/GBK_16.DZK",GBK_16_ADDR,16))//字库更新{LCD_Display_Str2(LCD_WIDTH/2-strlen("   ")/2*16,80,16,(u8 *)"   ",WHITE,WHITE);LCD_Display_Str2(10,80,16,(u8 *)"请将GBK_16.DZK放到/font/目录下,重启!",BLACK,WHITE);LCD_Refresh();}else {LCD_Display_Str2(LCD_WIDTH/2-strlen("   ")/2*16,80,16,(u8 *)"   ",WHITE,WHITE);LCD_Display_Str2(20,100,16,(u8 *)"     ",WHITE,WHITE);LCD_Refresh();goto GBK_16;}}/*GBK24_OK*/GBK_24:W25Q64_ReadData(GBK_24_ADDR-10,(u8*)buff,9);if(strstr(buff,"GBK24_OK")){LCD_Display_Str2(20,100,16,(u8 *)"GBK24    OK",RED,WHITE);LCD_Refresh();}else {LCD_Display_Str2(20,100,16,(u8 *)"GBK24    NO",RED,WHITE);LCD_Display_Str2(LCD_WIDTH/2-strlen("更新GBK24字库")/2*16,120,16,(u8 *)"更新GBK24字库",RED,WHITE);LCD_Refresh();if(SDcard_DownFont("0:/font/GBK_24.DZK",GBK_24_ADDR,24))//字库更新{LCD_Display_Str2(LCD_WIDTH/2-strlen("   ")/2*16,120,16,(u8 *)"   ",WHITE,WHITE);LCD_Display_Str2(10,120,16,(u8 *)"请将GBK_24.DZK放到/font/目录下,重启!",BLACK,WHITE);LCD_Refresh();}else {LCD_Display_Str2(LCD_WIDTH/2-strlen("   ")/2*16,120,16,(u8 *)"   ",WHITE,WHITE);LCD_Display_Str2(20,140,16,(u8 *)"     ",WHITE,WHITE);LCD_Refresh();goto GBK_24;}}/*GBK32_OK*/GBK_32:W25Q64_ReadData(GBK_32_ADDR-10,(u8*)buff,9);if(strstr(buff,"GBK32_OK")){LCD_Display_Str2(20,140,16,(u8 *)"GBK32    OK",RED,WHITE);LCD_Refresh();}else {LCD_Display_Str2(20,140,16,(u8 *)"GBK32    NO",RED,WHITE);LCD_Refresh();LCD_Display_Str2(LCD_WIDTH/2-strlen("更新GBK32字库")/2*16,160,16,(u8 *)"更新GBK32字库",RED,WHITE);LCD_Refresh();if(SDcard_DownFont("0:/font/GBK_32.DZK",GBK_32_ADDR,32))//字库更新{LCD_Display_Str2(LCD_WIDTH/2-strlen("   ")/2*16,160,16,(u8 *)"   ",WHITE,WHITE);LCD_Display_Str2(10,160,16,(u8 *)"请将GBK_32.DZK放到/font/目录下,重启!",BLACK,WHITE);LCD_Refresh();}else {LCD_Display_Str2(LCD_WIDTH/2-strlen("   ")/2*16,160,16,(u8 *)"   ",WHITE,WHITE);LCD_Display_Str2(20,180,16,(u8 *)"     ",WHITE,WHITE);LCD_Refresh();goto GBK_32;}}Delay_Ms(1000);Delay_Ms(1000);Delay_Ms(1000);LCD_Clear(WHITE);//清屏函数LCD_Refresh();FATFS_printDir("0:/Text/");  while(1)  {  res=XPT2046_ReadXY();if(res){//printf("x,y=%d,%d\r\n",xpt2046_info.x,xpt2046_info.y);y=List_CheckNode(story_head,xpt2046_info.y,(u8 *)buff);if(y){LcdFill(0,y-8,320,y+24,LIGHTGREEN);LCD_Display_Str2(20,y,16,(u8 *)buff,DARKBLUE,LIGHTGREEN);//显示字符串LCD_Refresh();while(T_PEN==0){}//等待松开LcdFill(0,0,320,480,WHITE);OLED_DrawRectangle(1, 415, 319,479,BLACK);//绘制矩形OLED_DrawRectangle(2, 416, 318,478,BLACK);//绘制矩形LCD_DrawLine(105, 415, 105, 479,BLACK);LCD_DrawLine(106, 415, 106, 479,BLACK);LCD_DrawLine(211, 415, 211, 479,BLACK);LCD_DrawLine(212, 415, 212, 479,BLACK);LCD_Display_Str2(5,415+20,24,(u8 *)"字体大小",BLACK,WHITE);//显示字符串LCD_Display_Str2(106+5,415+20,24,(u8 *)"字体颜色",BLACK,WHITE);//显示字符串LCD_Display_Str2(212+29,415+20,24,(u8 *)"返回",BLACK,WHITE);//显示字符串LCD_Refresh();FATFS_ReadFile(buff);}}  }}

5.完整示例

https://download.csdn.net/download/weixin_44453694/84997777