DIY - PIC24：C30 LCD1602 8BIT 液晶模組程式（十三）

DIY - PIC24：C30 LCD1602 8BIT 液晶模組程式（十三）：

LCD 液晶顯示器顯示程式，程式開始初始化 LCD1602（16x2）模組，設定不閃動及不顯示游標。初始化後，將 8BIT 資料傳送到液晶屏上，然後顯示資料後，閃動 LED 燈作程式完成。
 

Microchip PIC24FJ64GA008 LCD1602 液晶模組

Microchip PIC24FJ64GA008 LCD1602 8B 主程式：

//............................................................. //                        FILES INCLUDED IN THE PROJECT //............................................................. #include "p24FJ64GA008.h" #include "system\lcd\lcd.h"         // XLCD1 LCD header #include "system\lcd\delay.h" //............................................................. //                             CONFIGURATION  BITS //............................................................. // Config1 Code Protect off, Write protect off, _CONFIG1(JTAGEN_OFF &               // JTAG port is disabled          GCP_OFF &          GWRP_OFF &          FWDTEN_OFF                  // Watchdog Timer is disabled         ); // Config1 Fast RC Oscillator w/ divider and PLL _CONFIG2(   FNOSC_FRCPLL           // FRC w/ divider and PLL         ); //........................................................................ //                        FILES INCLUDED IN THE PROJECT //........................................................................ #include "p24FJ64GA008.h" #include "system\lcd\lcd.h"          // XLCD1 LCD header #include "system\lcd\delay.h" //........................................................................ //                             CONFIGURATION  BITS //........................................................................ // Config1 Code Protect off, Write protect off, _CONFIG1(JTAGEN_OFF &                // JTAG port is disabled          GCP_OFF &          GWRP_OFF &          FWDTEN_OFF                  // Watchdog Timer is disabled         ); // Config1 Fast RC Oscillator w/ divider and PLL _CONFIG2(   FNOSC_FRCPLL           // FRC w/ divider and PLL         ); //........................................................................ //                              GLOBAL VARIABLES //........................................................................ // LCD1602     1234567890123456"  char *msg1 = "BugWorkshop v1.0"               ;  // BugWorkshop  char *msg2 = "PIC24 LCD1602 8B"               ;  // PIC24FJ64GA008 void init(){ OSCCONbits.NOSC = 0b001;  // Set Fast RC OSC CLKDIVbits.RCDIV = 0b000; // Set Clock Div 1:1 TRISD = 0x0000; TRISE = 0x0000; } //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //                             MAIN FUNCTION //......................................................................... int main(void){                     // Test LCD 1602 8-bit and LED Flash init();                               // init OSC & PORT ini_lcd();                           // init the LCD module 8bits, 2lines,                               // Shift right cursor MODE, Display=ON clr_lcd();                           // clear LCD wrcmnd_lcd(DISPLAY+D_ON);         // shut down CURSOR & BLINK (keep the display)  wrstr_lcd(msg1);                   // write in LCD Message 1 wrcmnd_lcd(SET_DDRAM+N2_ROW2);  // set cursor on the second row wrstr_lcd(msg2);                   // write in LCD Message 2 // LED Flash and Stop    TRISB = 0x00; while( 1 ) {         // LED Flash         PORTB = 0xFF;         delay15ms();         // LED Stop         PORTB = 0x00;         delay15ms(); } return 0;  }   // END OF MAIN

要修改 lcd.h 文件並配置到你的設定和配置，記得讀取是用 PORTX（Input = PORTX）、寫出是用 LATx（Output = LATx）。

Microchip PIC24FJ64GA008 LCD1602 lcd.h 文件：

#define  RW        LATEbits.LATE2     // LCD R/W signal       #define  RS        LATEbits.LATE1    // LCD RS signal       #define  E         LATEbits.LATE3     // LCD E signal       #define  RW_TRIS  TRISEbits.TRISE2       #define  RS_TRIS  TRISEbits.TRISE1       #define  E_TRIS    TRISEbits.TRISE3       #define  DATA      LATD                 // Port for LCD data //*********************    LCD' FUNCTIONS PROTOYPES ***********************************/ void ini_lcd(void);                          // initializes the LCD        void wrcmnd_lcd(unsigned char cmd);     // writes a command to the LCD void wrdata_lcd(unsigned char data);   // writes a data byte to the LCD void clr_lcd(void);       // clears the LCD    void back_lcd(unsigned char pos);   // turns back the cursor with 'pos' positions void del_lcd(unsigned char pos);    // deletes back 'pos' characters void wrstr_lcd(char *str_lcd);      // writes a string to the LCD void wrnr_lcd(unsigned long k);     // writes a number to the LCD void test_lcd(unsigned char data); //.....................................................................................

Microchip PIC24FJ64GA008 LCD1602 lcd.c 程式：

#include "p24FJ64GA008.h" #include "delay.h"         #include "lcd.h"          // XLCD1 LCD header //........................................................................................ //                          LCD LOW LEVEL FUNCTIONS //........................................................................................ // The below function initializes the LCD: 8 BITS, 2 LINES, // DISPLAY ON, CURSOR/BLINK OFF, INCREMENT MODE, SHIFT RIGHT  //........................................................................................   void ini_lcd(void){             // initialization of the LCD delay15ms(); delay15ms()      ; // wait Vdd reaches nnVdc before proceeding with LCD initialization         // set initial states for the data & control pins DATA &= 0xFF00                ; // clear RE0-RE7 (data pins) RW = 0                        ; // R/W = low RS = 0                        ; // RS  = low E  = 0                        ; // E   = low // set data & control pins to outputs TRISE &= 0xFF00               ; // RE0 - RE7 = output (data pins) RW_TRIS = 0                   ; // RW  = output RS_TRIS = 0                   ; // RS  = output E_TRIS = 0                    ; // E   = output wrcmnd_lcd(FUNCTION+DL8+LINES); // function set (data length = 8 bits, 2 lines) delay15ms(); delay15ms()      ; wrcmnd_lcd(DISPLAY+D_ON)      ; // Display = ON, cursor & blink = OFF delay15ms(); delay15ms()      ; wrcmnd_lcd(MODE+SHR)      ; delay15ms(); delay15ms()      ;     }  // entry mode set (inc mode, shift right) //.................................................................................... //                 Writes a command into the LCD //.................................................................................... void wrcmnd_lcd(unsigned char cmd){ // writting a command into the LCD DATA &= 0xFF00                ; // clear RE0-RE7 (data pins) DATA |= cmd                   ; // send command byte to LCD RW = 0                        ; // ensure RW is 0 RS = 0                        ;   // and RS is 0 E = 1                         ; // toggle E signal Nop()  ;   Nop()  ;   Nop()   ; // short delay         E = 0                         ;    // clear E signal delay5ms()        ;           } // 5ms delay //.................................................................................... //                     Writes a data byte into the LCD //.................................................................................... void wrdata_lcd(unsigned char data){ // writting a data byte into the LCD RW = 0                        ;  // ensure RW is 0 RS = 1                        ;  // assert register select to 1 DATA &= 0xFF00                ;  // clear RE0-RE7 (data pins) DATA |= data                  ;  // send data byte to lcd E  = 1                        ;  // set E signal               Nop()   ;   Nop()   ;   Nop() ;  // short delay E  = 0                        ;  // toggle E signal RS = 0                        ;  // negate register select to 0 delay200us() ; delay200us() ; }  // 400usec delay  #define  TRIS_RS  TRISEbits.TRISE1 //.......................................................................................

Microchip PIC24FJ64GA008 LCD1602 液晶模組

LCD1602 液晶模組顯示

2016年 4月 7日 天氣報告

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