Nokia 3310 LCD jal kütüphanesi 5×7 font örnek

Daha önceki yazılarda nokia 3310 lcd kullanımı ile ilgili bir çok proje paylaşılmıştı 3310 lcd için bir çok programlama dilinin kütüphane library dosyası var jal içinde hazırlanmış.

Andremiller.net sitesinde “andre” jal için kütüphane dosyası hazırlamış jal kullanıcıları için büyük kolaylık sağlar ayrıca uygulama örneği ve 5×7 font dosyasıda bulunuyor dosyalar: Nokia 3310 LCD Driver JAL PIC Library

nokia_lcd.jal içeriği

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Nokia 3310 LCD JAL Library by Andre Miller
;; (andre@100acre.org)
;;
;; Based on the following C source libraries:
;;
;; - Various projects using LPH7779 with PICC by Michel Bavin
;;   http://users.skynet.be/bk317494/index.htm
;; - Nokia LCD Lib for AVR by Louis Frigon
;;   http://www.microsyl.com/nokialcd/nokialcd.html

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Procedures
;;

;; Write a byte to the LCD
;; Command: mode = false
;; Data:    mode = true
procedure NLCD_Write (byte in data, bit in mode) is

          ;; Pull nok_dc high or low depending on mode
          if (mode) then
             nok_dc = high
          else
             nok_dc = low
          end if
          nok_cs = low

          ;; Clock in 8 bits of data
          for 8 loop
              nok_sclk = low
              if ( (data & 0x80) == 0 )then
                 nok_sda = low
              else
                 nok_sda = high
              end if
              nok_sclk = high
              data = data << 1
          end loop

          nok_cs = high
end procedure

;; Set the current position for data (x = 0->83, y = 0->5)
procedure NLCD_GotoXY (byte in xnokia, byte in ynokia) is
          NLCD_Write ( 0x40 | ( ynokia & 0x07 ), false)
          NLCD_Write ( 0x80 | ( xnokia & 0x7f ), false)
end procedure

; 16 bit addition
; a = a + b, result in a
; by Vasile
; http://www.geocities.com/vsurducan/electro/PIC/lib.html
procedure _16b_add(
   byte in b_hi, byte in b_lo,
   byte in out a_hi, byte in out a_lo
) is assembler
    bank MOVF   b_lo,W
    bank ADDWF  a_lo,f
    bank MOVF   b_hi,W
         BTFSC  status_C
         INCFSZ b_hi,W
    bank ADDWF  a_hi,f
end assembler end procedure

;; Clear the LCD data memory
procedure NLCD_Clear is
          nok_sda = low ;; Data bit is low
          nok_dc = high ;; Data mode
          nok_cs = low

          for 6 loop
              ;; 6 rows
              for 84 loop
                  ;; 84 columns or 'pages'
                  for 8 loop
                      ;; Clock for the 8 bits of the 'page'
                      nok_sclk = low
                      nok_sclk = high
                  end loop
              end loop
          end loop
end procedure

;; Send LCD Initialization
procedure NLCD_Init is

          ;; Set initial status of LCD pins
          nok_sclk = low
          nok_sda = low
          nok_dc = low
          nok_cs = low
          nok_res = low

          ;; Toggle LCD Reset
          delay_1ms (10)
          nok_res = low
          delay_1ms (250)
          nok_res = high

          nok_cs = high
          NLCD_Write (0x21, false);; Extended commands
          NLCD_Write (0xc5, false);; LCD Vop
          NLCD_Write (0x06, false);; Temp coef
          NLCD_Write (0x13, false);; LCD Bias 1:48
          NLCD_Write (0x20, false);; Standard commands
          NLCD_Write (0x0c, false);; Normal Mode

          ;; Clear and position at top of LCD
          NLCD_Clear();
          NLCD_GotoXY (0,0);

end procedure

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Some test patterns

procedure NLCD_Test_1 is
;; Produce a 1 x 1 checkerboard pattern
NLCD_GotoXY (0,0)
for 42 loop  ; columns / 2
    for 6 loop
        NLCD_Write (0b_1010_1010, true)
        NLCD_Write (0b_0101_0101, true)
    end loop
end loop
end procedure

procedure NLCD_Test_2 is
;; Produce a border outline
NLCD_GotoXY (0,0)
NLCD_Write (0b_1111_1111, true)
for 82 loop
    NLCD_Write (0b_0000_0001, true)
end loop
NLCD_Write (0b_1111_1111, true)
for 4 loop
    NLCD_Write (0b_1111_1111, true)
    for 82 loop
        NLCD_Write (0b_0000_0000, true)
    end loop
    NLCD_Write (0b_1111_1111, true)
end loop
NLCD_Write (0b_1111_1111, true)
for 82 loop
    NLCD_Write (0b_1000_0000, true)
end loop
NLCD_Write (0b_1111_1111, true)
end procedure