707 lines
18 KiB
C
707 lines
18 KiB
C
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#include "ws_drive_tft.h"
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#include "drive_dzcode.h"
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#include <stdarg.h>
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#include <stdio.h>
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#include "string.h"
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// 注意：
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// 使用只需修改映射地址
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// FSMC_BANK1_1 对应 NE1 , 以此类推
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// " 1<<24 " 中的 24 对应A23, 以此类推
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__IO uint16_t *FSMC_TFT_Dat_Addr; // 写数据地址
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__IO uint16_t *FSMC_TFT_Cmd_Addr; // 写命令地址
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#define WS_TFT_Write_Cmd(d) (*FSMC_TFT_Cmd_Addr) = (d)
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#define WS_TFT_Write_Dat(d) (*FSMC_TFT_Dat_Addr) = (d)
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#define WS_TFT_Write_Cmd_Dat(r,d) (*FSMC_TFT_Cmd_Addr) = (r),(*FSMC_TFT_Dat_Addr) = (d)
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// 设置TFT对应的内存地址
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void WS_TFT_FSMC_Addr_Init(void)
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{
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// 注意：
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// 使用只需修改映射地址
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// FSMC_BANK1_1 对应 NE1 , 以此类推
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// " 1<<24 " 中的24对应A23, 以此类推
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// 16bit位宽 ， LCD_RS->A23(NE1) , 对应第24个地址位
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FSMC_TFT_Dat_Addr = (uint16_t *)(((uint32_t)(FSMC_BANK1_1 | 1<<17)));
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FSMC_TFT_Cmd_Addr = (uint16_t *)(((uint32_t)(FSMC_BANK1_1 | 1<<17))-2);
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}
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//LCD重要参数集
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typedef struct
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{
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uint16_t width; //LCD 宽度
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uint16_t height; //LCD 高度
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uint16_t id; //LCD ID
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uint8_t dir; //横屏还是竖屏控制：0，竖屏；1，横屏。
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uint16_t wramcmd; //开始写gram指令
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uint16_t setxcmd; //设置x坐标指令
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uint16_t setycmd; //设置y坐标指令
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}_lcd_dev;
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_lcd_dev lcddev;
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#define USE_HORIZONTAL LCD_DIR_MODE // 0//1
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void WS_TFT_Set_Param(void)
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{
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lcddev.setxcmd=0x2A;
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lcddev.setycmd=0x2B;
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lcddev.wramcmd=0x2C;
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#if USE_HORIZONTAL==1 //使用横屏
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lcddev.dir=1;//横屏
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lcddev.width=TFT_X_MAX;
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lcddev.height=TFT_Y_MAX;
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WS_TFT_Write_Cmd_Dat(0x36,(1<<3)|(1<<7)|(1<<5));//BGR==1,MY==1,MX==0,MV==1
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#else//竖屏
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lcddev.dir=0;//竖屏
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lcddev.width =TFT_X_MAX;
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lcddev.height=TFT_Y_MAX;
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WS_TFT_Write_Cmd_Dat(0x36,(1<<3)|(0<<6)|(0<<7));//BGR==1,MY==0,MX==0,MV==0
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#endif
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}
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// 按照指定颜色清屏
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void WS_TFT_Clear(uint16_t color)
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{
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uint32_t index=0; // 239 , 319
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WS_TFT_Set_Windows(0,0,lcddev.width-1,lcddev.height-1);
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for(index=0 ; index<TFT_X_MAX * TFT_Y_MAX ; index++)
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{
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WS_TFT_Write_Dat(color);
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}
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}
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// 初始化 TFT
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void WS_TFT_Init(void)
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{
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WS_TFT_FSMC_Addr_Init();
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//************* 2.8inch ILI9341 **********//
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WS_TFT_Write_Cmd(0xCF);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0xC9); //C1
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WS_TFT_Write_Dat(0X30);
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WS_TFT_Write_Cmd(0xED) ;
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WS_TFT_Write_Dat(0x64);
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WS_TFT_Write_Dat(0x03);
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WS_TFT_Write_Dat(0X12);
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WS_TFT_Write_Dat(0X81);
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WS_TFT_Write_Cmd(0xE8);
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WS_TFT_Write_Dat(0x85);
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WS_TFT_Write_Dat(0x10);
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WS_TFT_Write_Dat(0x7A);
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WS_TFT_Write_Cmd(0xCB);
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WS_TFT_Write_Dat(0x39);
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WS_TFT_Write_Dat(0x2C);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x34);
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WS_TFT_Write_Dat(0x02);
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WS_TFT_Write_Cmd(0xF7);
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WS_TFT_Write_Dat(0x20);
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WS_TFT_Write_Cmd(0xEA);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Cmd(0xC0); //Power control
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WS_TFT_Write_Dat(0x1B); //VRH[5:0]
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WS_TFT_Write_Cmd(0xC1); //Power control
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WS_TFT_Write_Dat(0x00); //SAP[2:0];BT[3:0] 01
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WS_TFT_Write_Cmd(0xC5); //VCM control
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WS_TFT_Write_Dat(0x30); //3F
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WS_TFT_Write_Dat(0x30); //3C
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WS_TFT_Write_Cmd(0xC7); //VCM control2
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WS_TFT_Write_Dat(0XB7);
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WS_TFT_Write_Cmd(0x36); // Memory Access Control
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WS_TFT_Write_Dat(0x08);
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WS_TFT_Write_Cmd(0x3A);
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WS_TFT_Write_Dat(0x55);
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WS_TFT_Write_Cmd(0xB1);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x1A);
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WS_TFT_Write_Cmd(0xB6); // Display Function Control
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WS_TFT_Write_Dat(0x0A);
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WS_TFT_Write_Dat(0xA2);
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WS_TFT_Write_Cmd(0xF2); // 3Gamma Function Disable
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Cmd(0x26); //Gamma curve selected
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WS_TFT_Write_Dat(0x01);
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WS_TFT_Write_Cmd(0xE0); //Set Gamma
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WS_TFT_Write_Dat(0x0F);
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WS_TFT_Write_Dat(0x2A);
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WS_TFT_Write_Dat(0x28);
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WS_TFT_Write_Dat(0x08);
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WS_TFT_Write_Dat(0x0E);
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WS_TFT_Write_Dat(0x08);
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WS_TFT_Write_Dat(0x54);
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WS_TFT_Write_Dat(0XA9);
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WS_TFT_Write_Dat(0x43);
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WS_TFT_Write_Dat(0x0A);
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WS_TFT_Write_Dat(0x0F);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Cmd(0XE1); //Set Gamma
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x15);
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WS_TFT_Write_Dat(0x17);
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WS_TFT_Write_Dat(0x07);
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WS_TFT_Write_Dat(0x11);
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WS_TFT_Write_Dat(0x06);
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WS_TFT_Write_Dat(0x2B);
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WS_TFT_Write_Dat(0x56);
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WS_TFT_Write_Dat(0x3C);
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WS_TFT_Write_Dat(0x05);
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WS_TFT_Write_Dat(0x10);
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WS_TFT_Write_Dat(0x0F);
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WS_TFT_Write_Dat(0x3F);
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WS_TFT_Write_Dat(0x3F);
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WS_TFT_Write_Dat(0x0F);
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WS_TFT_Write_Cmd(0x2B);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x01);
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WS_TFT_Write_Dat(0x3f);
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WS_TFT_Write_Cmd(0x2A);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0x00);
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WS_TFT_Write_Dat(0xef);
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WS_TFT_Write_Cmd(0x11); //Exit Sleep
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HAL_Delay(120);
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WS_TFT_Write_Cmd(0x29); //display on
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WS_TFT_Set_Param();//
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// 打开背光
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LCD9486_BL_OPEN ;
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// 全屏幕刷色测试 ，R,G,B
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WS_TFT_Clear(RED) ;
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HAL_Delay(200) ;
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WS_TFT_Clear(GREEN) ;
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HAL_Delay(200) ;
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WS_TFT_Clear(BLUE) ;
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HAL_Delay(200) ;
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WS_TFT_Clear(WHITE) ;
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HAL_Delay(200) ;
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// 字符显示测试
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WS_TFT_Dis_8X16_String (0,0, "2020/11/14 09:08:20 ",WHITE, RED);
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WS_TFT_Dis_5X7_String (160,0, "TFT 5x7 ASCII",WHITE, RED);
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WS_TFT_Dis_5X7_String (160,8, "TFT 5x7 ASCII",BLACK, WHITE);
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WS_TFT_Dis_8X16_String (0,16,"16x16 font:字库测试",WHITE,GREEN) ;
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WS_TFT_Dis_12X24_String(0,32,"24x24 font:字库测试",WHITE,BLUE);
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WS_TFT_Dis_16X32_String(0,54,"32x32 font:字库测试",WHITE,BROWN);
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}
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// 选择需要更新的区域
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void WS_TFT_Set_Windows(uint16_t xStar, uint16_t yStar,uint16_t xEnd,uint16_t yEnd)
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{
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WS_TFT_Write_Cmd(lcddev.setxcmd);
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WS_TFT_Write_Dat(xStar>>8);
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WS_TFT_Write_Dat(0x00FF&xStar);
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WS_TFT_Write_Dat(xEnd>>8);
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WS_TFT_Write_Dat(0x00FF&xEnd);
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WS_TFT_Write_Cmd(lcddev.setycmd);
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WS_TFT_Write_Dat(yStar>>8);
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WS_TFT_Write_Dat(0x00FF&yStar);
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WS_TFT_Write_Dat(yEnd>>8);
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WS_TFT_Write_Dat(0x00FF&yEnd);
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// 开始跟新选择区域内的GRAM
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WS_TFT_Write_Cmd(lcddev.wramcmd);
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}
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// 画点
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void WS_TFT_Draw_Point(uint16_t x,uint16_t y,uint16_t color)
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{
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// 设置区域
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WS_TFT_Set_Windows(x,y,x+1,y+1);
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// 写入数据
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WS_TFT_Write_Dat(color) ;
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}
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// 画实心矩形
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void WS_TFT_Draw_Rectangle(uint16_t xStar, uint16_t yStar,uint16_t xEnd,uint16_t yEnd,uint16_t color)
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{
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uint16_t i = 0;
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// 设置区域
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WS_TFT_Set_Windows(xStar,yStar,xEnd,yEnd);
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// 写入数据
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for(;yStar < yEnd ; yStar ++ )
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{
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for(i = xStar; i <= xEnd; i ++ )
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WS_TFT_Write_Dat(color) ;
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}
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}
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// 获取16点 字库数据
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// 虚函数， 在SD卡或spi flash实现 读取数据
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// buffer: 数据缓存地址
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// gbk : 汉字内码数据
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// size : 读取汉字个数
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// 返回值: 读取的数据个数
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__weak uint32_t WS_Font16_Read_Date(uint8_t *buffer , uint8_t * gbk , uint32_t size)
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{
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buffer = buffer ; gbk = gbk ; size = size ;
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return 0 ;
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}
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// 获取24点 字库数据
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// 虚函数， 在SD卡或spi flas h实现 读取数据
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// buffer: 数据缓存地址
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// gbk : 汉字内码数据
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// size : 读取汉字个数
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// 返回值: 读取的数据个数
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__weak uint32_t WS_Font24_Read_Date(uint8_t *buffer , uint8_t * gbk , uint32_t size)
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{
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buffer = buffer ; gbk = gbk ; size = size ;
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return 0 ;
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}
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// 获取32点 字库数据
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// 虚函数， 在SD卡或spi flas h实现 读取数据
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// buffer: 数据缓存地址
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// gbk : 汉字内码数据
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// size : 读取汉字个数
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// 返回值: 读取的数据个数
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__weak uint32_t WS_Font32_Read_Date(uint8_t *buffer , uint8_t * gbk , uint32_t size)
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{
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buffer = buffer ; gbk = gbk ; size = size ;
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return 0 ;
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}
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// 刷16*16点区域
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void WS_TFT_Dis_16X16_Date (int x, int y, uint8_t * buffer , uint16_t n, uint16_t backColor ,uint16_t forColor)
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{
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int i , j;
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uint16_t dat = 0;
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while(n -- > 0)
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{
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WS_TFT_Set_Windows(x,y,x+15,y+15);
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for(i=0;i<32;i+=2)
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{
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dat = buffer[i] <<8 ;
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dat |= buffer[i+1] ;
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for(j=15;j>=0;j--)
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{
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if((dat & 1<<j) != 0 )
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{
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WS_TFT_Write_Dat(forColor);
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}
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else
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{
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WS_TFT_Write_Dat(backColor);
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}
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}
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}
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x += 16;
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buffer += 32;
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if(x > TFT_X_MAX - 16) return;
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}
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}
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// 刷24*24点区域
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void WS_TFT_Dis_24X24_Date (int x, int y, uint8_t *buffer ,uint16_t n, uint16_t backColor ,uint16_t forColor)
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{
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int i , j;
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uint8_t dat = 0;
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while(n -- > 0)
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{
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WS_TFT_Set_Windows(x,y,x+23,y+23);
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for(i=0;i<72;i++)
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{
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dat = buffer[i] ;
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for(j=7;j>=0;j--)
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{
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if((dat & 1<<j) != 0 )
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{
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WS_TFT_Write_Dat(forColor);
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}
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else
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{
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WS_TFT_Write_Dat(backColor);
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}
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}
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}
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x += 24;
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buffer += 72;
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if(x > TFT_X_MAX - 24) return;
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}
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}
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// 刷32*32点区域
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void WS_TFT_Dis_32X32_Date (int x, int y, uint8_t *buffer ,uint16_t n, uint16_t backColor ,uint16_t forColor)
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{
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int i , j;
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uint8_t dat = 0;
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while(n -- > 0)
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{
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WS_TFT_Set_Windows(x,y,x+31,y+31);
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for(i=0;i<128;i++)
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{
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dat = buffer[i] ;
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for(j=7;j>=0;j--)
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{
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if((dat & 1<<j) != 0 )
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{
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WS_TFT_Write_Dat(forColor);
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}
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else
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{
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WS_TFT_Write_Dat(backColor);
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}
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}
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}
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x += 32;
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buffer += 128;
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if(x > TFT_X_MAX - 32) return;
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}
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}
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// 显示5X7字符串
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void WS_TFT_Dis_5X7_String (int x,int y,char *string , uint16_t backColor ,uint16_t forColor)
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{
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int i , j ;
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uint8_t len=strlen((char *)string);
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uint8_t idex=0 , *p_dat , dat ;
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for(idex=0;idex<len;idex++)
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{
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if((uint8_t)string[idex]<0x80) // 判断 ASCII 、汉字
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{
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WS_TFT_Set_Windows(x,y,x+5,y+7);
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p_dat = (uint8_t *)(string8X8Code + (string[idex] - 0x20)*8);
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for(i=0;i<8;i++)
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{
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dat = p_dat[i] ;
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for(j=7;j>=2;j--)
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{
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if((dat & (1<<j)) != 0 )
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{
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WS_TFT_Write_Dat(forColor);
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}
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else
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{
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WS_TFT_Write_Dat(backColor);
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}
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}
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}
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}
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else //
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{
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idex ++;
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}
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x += 6;
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if(x >= TFT_X_MAX - 6) return; //
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}
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}
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uint8_t font_buffer[1280]; // 最大存储10个32点字库数据
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// 显示8X16字符串
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void WS_TFT_Dis_8X16_String (int x,int y, char *string , uint16_t backColor ,uint16_t forColor)
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{
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uint16_t i , j ;
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uint8_t len=strlen((char *)string);
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uint8_t idex=0 , *p_dat , dat ; //buffer[320] ;
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for(idex=0;idex<len;)
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{
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if((uint8_t)string[idex]<0x80) // 判断 ASCII 、汉字
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{
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WS_TFT_Set_Windows(x,y,x+7,y+15);
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p_dat = (uint8_t *)(string8X16Code + (string[idex] - 0x20)*16);
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for(i=0;i<16;i++)
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{
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dat = p_dat[i] ;
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for(j=0;j<8;j++)
|
||
{
|
||
if((dat & 1<<(7-j)) != 0 )
|
||
{
|
||
WS_TFT_Write_Dat(forColor);
|
||
}
|
||
else
|
||
{
|
||
WS_TFT_Write_Dat(backColor);
|
||
}
|
||
}
|
||
}
|
||
x += 8;
|
||
idex ++;
|
||
}
|
||
else //
|
||
{
|
||
uint32_t size = WS_Font16_Read_Date(font_buffer,(uint8_t *)&string[idex],20);
|
||
if( size > 0)
|
||
{
|
||
WS_TFT_Dis_16X16_Date(x,y,font_buffer,size/32,backColor,forColor);
|
||
x += size/2;
|
||
}
|
||
if(size != 0) idex += size/16;
|
||
else idex += 2;
|
||
}
|
||
if(x > TFT_X_MAX - 8) return;
|
||
}
|
||
}
|
||
|
||
// 显示12X24字符串
|
||
void WS_TFT_Dis_12X24_String (int x,int y, char *string , uint16_t backColor ,uint16_t forColor)
|
||
{
|
||
uint16_t i , j, dat ;
|
||
uint8_t len=strlen((char *)string);
|
||
uint8_t idex=0 , *p_dat ;
|
||
|
||
for(idex=0;idex<len;)
|
||
{
|
||
if((uint8_t)string[idex]<0x80) // 判断 ASCII 、汉字
|
||
{
|
||
WS_TFT_Set_Windows(x,y,x+11,y+23);
|
||
p_dat = (uint8_t *)(ascii12X24Code + (string[idex] - 0x20)*48);
|
||
for(i=0;i<48;i+=2)
|
||
{
|
||
dat = p_dat[i]<<8 ;
|
||
dat |= p_dat[i+1] ;
|
||
for(j=15;j>=4;j--)
|
||
{
|
||
if((dat & 1<<j) != 0 )
|
||
{
|
||
WS_TFT_Write_Dat(forColor);
|
||
}
|
||
else
|
||
{
|
||
WS_TFT_Write_Dat(backColor);
|
||
}
|
||
}
|
||
}
|
||
x += 12;
|
||
idex ++;
|
||
}
|
||
else //
|
||
{
|
||
uint32_t size = WS_Font24_Read_Date(font_buffer,(uint8_t *)&string[idex],20);
|
||
if( size > 0)
|
||
{
|
||
WS_TFT_Dis_24X24_Date(x,y,font_buffer,size/72,backColor,forColor);
|
||
x += size / 3; // 24 * size/72
|
||
}
|
||
if(size != 0) idex += size/36; // 2 * size/72
|
||
else idex += 2;
|
||
}
|
||
if(x > TFT_X_MAX - 12) return; //???????????????????????
|
||
}
|
||
}
|
||
|
||
// 显示16X32字符串
|
||
void WS_TFT_Dis_16X32_String (int x,int y, char *string , uint16_t backColor ,uint16_t forColor)
|
||
{
|
||
int i , j ;
|
||
uint16_t dat ;
|
||
uint8_t len=strlen((char *)string);
|
||
uint8_t idex=0 , *p_dat ;
|
||
|
||
for(idex=0;idex<len;)
|
||
{
|
||
if((uint8_t)string[idex]<0x80) // 判断 ASCII 、汉字
|
||
{
|
||
WS_TFT_Set_Windows(x,y,x+15,y+31);
|
||
p_dat = (uint8_t *)(ascii16X32Code + (string[idex] - 0x20)*64);
|
||
for(i=0;i<64;i+=2)
|
||
{
|
||
dat = p_dat[i]<<8 ;
|
||
dat |= p_dat[i+1] ;
|
||
for(j=15;j>=0;j--)
|
||
{
|
||
if((dat & 1<<j) != 0 )
|
||
{
|
||
WS_TFT_Write_Dat(forColor);
|
||
}
|
||
else
|
||
{
|
||
WS_TFT_Write_Dat(backColor);
|
||
}
|
||
}
|
||
}
|
||
x += 16;
|
||
idex ++;
|
||
}
|
||
else //
|
||
{
|
||
uint32_t size = WS_Font32_Read_Date(font_buffer,(uint8_t *)&string[idex],20);
|
||
if( size > 0)
|
||
{
|
||
WS_TFT_Dis_32X32_Date(x,y,font_buffer,size/128,backColor,forColor);
|
||
x += size / 4; // 32 * size/128
|
||
}
|
||
if(size != 0) idex += size/64; // 2 * size/128
|
||
else idex += 2;
|
||
}
|
||
if(x > TFT_X_MAX - 12) return; //???????????????????????
|
||
}
|
||
}
|
||
|
||
|
||
// 在TFT上打印 “8X16” 调试信息
|
||
void WS_TFT_Dis_Debug(int x,int y, uint16_t forColor , char *p,...)
|
||
{
|
||
char formatBuf[48] ;
|
||
va_list ap;
|
||
va_start(ap,p);
|
||
vsprintf(formatBuf,p,ap);
|
||
va_end(ap);
|
||
WS_TFT_Dis_8X16_String(x,y,formatBuf,WHITE,forColor);
|
||
}
|
||
|
||
|
||
// 计算 X、Y轴 一元一次函数的k、b
|
||
// 实测ADC值
|
||
#define TOUTH_X_LITF_ADC 3875 // 左上角X,Y的ADC值
|
||
#define TOUTH_Y_UP_ADC 3865
|
||
|
||
#define TOUTH_X_RIGHT_ADC 215 // 右下角X,Y的ADC值
|
||
#define TOUTH_Y_DOWN_ADC 400
|
||
|
||
// k = (y2-y1)/(x2-x1)
|
||
// b =
|
||
#define touchX_k (float)(240-10) / (TOUTH_X_RIGHT_ADC - TOUTH_X_LITF_ADC )
|
||
#define touchX_b (5*TOUTH_X_RIGHT_ADC - 235*TOUTH_X_LITF_ADC) / (TOUTH_X_RIGHT_ADC - TOUTH_X_LITF_ADC)
|
||
|
||
#define touchY_k (float)(320-10) / (TOUTH_Y_DOWN_ADC - TOUTH_Y_UP_ADC )
|
||
#define touchY_b ((5*TOUTH_Y_DOWN_ADC - 315*TOUTH_Y_UP_ADC) / (TOUTH_Y_DOWN_ADC - TOUTH_Y_UP_ADC))
|
||
|
||
|
||
|
||
// 读取XPT2046 X、Y数据
|
||
// hspi: spi外设句柄
|
||
// cmd : 读取控制字节， 0xd0读x轴，0x90读y轴。
|
||
uint16_t WS_TFT_Touth_Read_XPT2046(SPI_HandleTypeDef *hspi,uint16_t cmd)
|
||
{
|
||
uint16_t num = 0;
|
||
|
||
// 以片选定义为条件控制编译， 防止在没有定义下编译报错。
|
||
#if defined( LCD_T_CS_GPIO_Port )
|
||
|
||
uint8_t spi_r[2] , spi_t ;
|
||
|
||
// 没有触控，直接返回0
|
||
if(HAL_GPIO_ReadPin(LCD_T_PEN_GPIO_Port,LCD_T_PEN_Pin) != GPIO_PIN_RESET) return 0;
|
||
|
||
// 片选使能
|
||
HAL_GPIO_WritePin(LCD_T_CS_GPIO_Port,LCD_T_CS_Pin,GPIO_PIN_RESET);
|
||
|
||
spi_t = cmd; // 写命令
|
||
HAL_SPI_TransmitReceive(hspi,&spi_t,spi_r,1,1);
|
||
|
||
// 延时等待转换
|
||
num = 50;
|
||
while(num --);
|
||
spi_t = 0 ;
|
||
|
||
// 读取16位数据
|
||
HAL_SPI_TransmitReceive(hspi,&spi_t,spi_r,2,1);
|
||
|
||
// 数据转换 ， 保留中间12位
|
||
num = (spi_r[0] << 8) | spi_r[1];
|
||
num &= ~(1<<15);
|
||
num >>= 3;
|
||
|
||
// 片选失能
|
||
HAL_GPIO_WritePin(LCD_T_CS_GPIO_Port,LCD_T_CS_Pin,GPIO_PIN_SET);
|
||
#endif
|
||
|
||
return num;
|
||
}
|
||
|
||
|
||
// 排序函数
|
||
void sort(uint16_t arr[], int size)
|
||
{
|
||
int j,i,tem;
|
||
for (i = 0; i < size-1;i ++)//size-1是因为不用与自己比较，所以比的数就少一个
|
||
{
|
||
int count = 0;
|
||
for (j = 0; j < size-1 - i; j++) //size-1-i是因为每一趟就会少一个数比较
|
||
{
|
||
if (arr[j] > arr[j+1])//这是升序排法，前一个数和后一个数比较，如果前数大则与后一个数换位置
|
||
{
|
||
tem = arr[j];
|
||
arr[j] = arr[j+1];
|
||
arr[j+1] = tem;
|
||
count = 1;
|
||
|
||
}
|
||
}
|
||
if (count == 0) //如果某一趟没有交换位置，则说明已经排好序，直接退出循环
|
||
break;
|
||
}
|
||
|
||
}
|
||
// 读取触摸芯片数据，并转化位位置数据，周期调用
|
||
// 10ms 调用一次 ， 统计5次转换数据，排序后去大去小，在求平均
|
||
// 返回值高16位存X值，低16位存y值
|
||
uint32_t WS_TFT_Touth_Get_Point(SPI_HandleTypeDef *hspi)
|
||
{
|
||
uint16_t adc_x , adc_y ;
|
||
static uint16_t x_buf[5] , y_buf[5], count = 0;
|
||
uint32_t num = 0;
|
||
|
||
// 以XPT2046中断输出定义为条件控制编译， 防止在没有定义下编译报错。
|
||
#if defined( LCD_T_PEN_GPIO_Port )
|
||
if(HAL_GPIO_ReadPin(LCD_T_PEN_GPIO_Port,LCD_T_PEN_Pin) == GPIO_PIN_RESET)
|
||
{
|
||
if(count < 5)
|
||
{
|
||
x_buf[count] = WS_TFT_Touth_Read_XPT2046(hspi,0xd0); // 获取X轴数据
|
||
y_buf[count] = WS_TFT_Touth_Read_XPT2046(hspi,0x90); // 获取Y轴数据
|
||
count ++;
|
||
}
|
||
else
|
||
{
|
||
count = 0;
|
||
sort (x_buf,5) ;
|
||
sort (y_buf,5) ;
|
||
adc_x = (x_buf[1] + x_buf[2] + x_buf[3]) / 3 ;
|
||
adc_y = (y_buf[1] + y_buf[2] + y_buf[3]) / 3 ;
|
||
}
|
||
|
||
// 合成数据
|
||
num = (uint16_t)(touchX_k * adc_x + touchX_b) ; // 存高16位
|
||
num <<= 16;
|
||
num |= (uint16_t)(touchY_k * adc_y + touchY_b) ; // 存低16位
|
||
}
|
||
#endif
|
||
return num;
|
||
}
|
||
|
||
|
||
|
||
|