From e6bffe23c87a9f6de8abdec747600f674b9cab62 Mon Sep 17 00:00:00 2001
From: William Harrington <kb0iic@berzerkula.org>
Date: Sat, 27 Jul 2019 22:16:27 -0500
Subject: Copy project files into repo

---
 lcd.c | 110 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100755 lcd.c

(limited to 'lcd.c')

diff --git a/lcd.c b/lcd.c
new file mode 100755
index 0000000..b6d0ece
--- /dev/null
+++ b/lcd.c
@@ -0,0 +1,110 @@
+#include "lcd.h"
+#include "conf.h"
+
+//LCD Functions Developed by electroSome
+
+void Lcd_Port(char a) {
+    if (a & 1)
+        D4 = 1;
+    else
+        D4 = 0;
+
+    if (a & 2)
+        D5 = 1;
+    else
+        D5 = 0;
+
+    if (a & 4)
+        D6 = 1;
+    else
+        D6 = 0;
+
+    if (a & 8)
+        D7 = 1;
+    else
+        D7 = 0;
+}
+
+void Lcd_Cmd(char a) {
+    RS = 0; // => RS = 0
+    Lcd_Port(a);
+    EN = 1; // => E = 1
+    __delay_ms(4);
+    EN = 0; // => E = 0
+}
+
+void Lcd_Clear() {
+    Lcd_Cmd(0);
+    Lcd_Cmd(1);
+}
+
+void Lcd_Set_Cursor(char a, char b) {
+    char temp, z, y;
+    if (a == 1) {
+        temp = 0x80 + b - 1;
+        z = temp >> 4;
+        y = temp & 0x0F;
+        Lcd_Cmd(z);
+        Lcd_Cmd(y);
+    } else if (a == 2) {
+        temp = 0xC0 + b - 1;
+        z = temp >> 4;
+        y = temp & 0x0F;
+        Lcd_Cmd(z);
+        Lcd_Cmd(y);
+    }
+}
+
+void Lcd_Init() {
+    Lcd_Port(0x00);
+    __delay_ms(20);
+    Lcd_Cmd(0x03);
+    __delay_ms(5);
+    Lcd_Cmd(0x03);
+    __delay_ms(11);
+    Lcd_Cmd(0x03);
+    /////////////////////////////////////////////////////
+    Lcd_Cmd(0x02);
+    Lcd_Cmd(0x02);
+    Lcd_Cmd(0x08);
+    Lcd_Cmd(0x00);
+    Lcd_Cmd(0x0C);
+    Lcd_Cmd(0x00);
+    Lcd_Cmd(0x06);
+}
+
+void Lcd_Write_Char(char a) {
+    char temp, y;
+    temp = a & 0x0F;
+    y = a & 0xF0;
+    RS = 1; // => RS = 1
+    Lcd_Port(y >> 4); //Data transfer
+    EN = 1;
+    __delay_us(40);
+    EN = 0;
+    Lcd_Port(temp);
+    EN = 1;
+    __delay_us(40);
+    EN = 0;
+}
+
+void Lcd_Write_String(char *a) {
+    int i;
+    for (i = 0; a[i] != '\0'; i++)
+        Lcd_Write_Char(a[i]);
+}
+
+void Lcd_Shift_Right() {
+    Lcd_Cmd(0x01);
+    Lcd_Cmd(0x0C);
+}
+
+void Lcd_Shift_Left() {
+    Lcd_Cmd(0x01);
+    Lcd_Cmd(0x08);
+}
+
+// For some VFD's like Noritake
+void Vfd_Set_Brightness(int level) {
+    
+}
\ No newline at end of file
-- 
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