Diff: main.cpp

Revision:

0:67db5ce17397

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jan 09 19:48:25 2018 +0000
@@ -0,0 +1,54 @@
+* Function Name : main
+* Description : Main program.
+*******************************************************************************/
+int main(void) //Main function
+{ 
+
+initgpio();
+
+int k=0; 
+char a[]="WWW.EEHERALD.COM";
+char b[]="EMBEDDED SYSTEMS";
+
+GPIOC->BRR=RS; //Initialize RS=0 for selecting instruction Send
+GPIOC->BRR=RW; // Select RW=0 to write Instruction/data on LCD
+GPIOC->BSRR=EN; // EN=1 for unlatch. (used at initial condition)
+
+delay_ms(10);
+
+s_init(); //Call Instruction Select routine
+GPIOA->ODR=0x0001; // Clear Display, Cursor to Home 
+s_latch(); //Latch the above instruction 
+GPIOA->ODR=0x0038; // Display Function (2 rows for 8-bit data; small) 
+s_latch(); //Latch this above instruction 4 times
+s_latch(); 
+s_latch(); 
+s_latch(); 
+GPIOA->ODR=0x000E; // Display and Cursor on, Cursor Blink off 
+s_latch(); //Latch the above instruction 
+GPIOA->ODR=0x0010; // Cursor shift left 
+s_latch(); //Latch the above instruction 
+GPIOA->ODR=0x0006; // Cursor Increment, Shift off 
+s_data(); //Change the input type to Data.(before it was instruction input)
+s_latch(); //Latch the above instruction
+
+for(k=0;a[k];k++)
+{
+GPIOA->ODR=a[k]; //It will send a[0]='P' as = '0x0050' on Port A.
+s_latch(); //Latch the above instruction only once. Or it will clone each character twice if you latch twice.
+}
+GPIOC->BRR=RS; //Initialize RS=0 for selecting instruction Send
+GPIOC->BRR=RW; // Select RW=0 to write Instruction/data on LCD
+GPIOC->BSRR=EN; // EN=1 for unlatch. (used at initial condition)
+
+delay_ms(10);
+GPIOA->ODR=0x00C0; // Move cursor to beginning of second row 
+s_latch(); //Latch the above instruction
+s_data(); //Change the input type to Data.(before it was instruction input)
+for(k=0;b[k];k++)
+{
+GPIOA->ODR=b[k]; //It will send b[0]='E' as = '0x0044' on Port A.
+s_latch();//Latch the above instruction only once. Or it will clone each character twice if you latch twice.
+}
+s_init(); 
+}
\ No newline at end of file