ARM 9(mini2440) board interfacing with MT8980 and switching in stream in & out

ARM 9(mini2440) board IMAGE DISPLAY in 3.5' TFT

my photo

சிவனேஷ் மச்சி விருந்து @ 22.1.2012

must watch it

http://www.youtube.com/watch?v=8EgGCqyskRQ&feature=related

கண்ணீர் அஞ்சலி

இன்று காலை தொந்தியப்ப நாடார் ( சின்ன பாட்டையா )இயற்கை எய்தினார்...

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Purchase of ARM 9 Development board

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http://www.amp-tronics.com/


info@amp-tronics.com

ARM9 S3C2440 -- Tutorial - 1

Embedded icon glad to meet u...

here, first we have to read S3C2440A datasheet.. link is

http://www.ziddu.com/download/18096491/s3c2440a_um_rev014_040712.pdf.html

Each port has configuration for selection port action such as input , output, pin functionality,reserved..

In this mini2440 development board , four led is connected to GPB^5,GPB^4,GPB^6,GPB^5

here,  i have done simple blinking via loading inverting data ,

#include <S3C2440.h>  
int main (void)
{
    int i;                
    GPBCON |= 0X155555;
    GPBDAT |= 0X000007FF;        
    while (1)
    {
        GPBDAT |= 0X000007ff;
        for (i = 0; i < 200000; i++);
        GPBDAT &= ~0X000007ff;
        for (i = 0; i < 200000; i++);
    }
}

i have attached that source code link ::

http://www.ziddu.com/download/18096659/Test.rar.html

that code work as in KEIL compiler..

under this development board this code only working in NOR mode only..Using command 'd' in BIOS setting..

Welcome to ARM9 (S3C2440A)

Hi friends ,
                  here i have done it Blinking LED in S3c2440 development board.. also declare serial received character display at 115200 baud rate..

 The source code as:: (any doubt contact me)


#include "def.h"
#include "option.h"
#include "2440addr.h"    
#include "2440lib.h"
#include "2440slib.h"     
//================================

void dely(U32 tt)
{
   U32 i;
   for(;tt>0;tt--)
   {
     for(i=0;i<10000;i++){}
   }
}
  

int Main()
{
    U8 key=14,ch,c;
    U32 val;int pclk,baud;
    U8 m, p, s;
    U32 mpll_val=0;
    int data;
     mpll_val = (92<<12)|(1<<4)|(1);
    ChangeMPllValue((mpll_val>>12)&0xff, (mpll_val>>4)&0x3f, mpll_val&3);
    ChangeClockDivider(key, 12);
    MMU_DisableICache();
    MMU_DisableDCache();
    val = rMPLLCON;
    m = (val>>12)&0xff;
    p = (val>>4)&0x3f;
    s = val&3;       
    baud=115200;
    pclk    = PCLK;
    rUFCON0 = 0x0;
    rUMCON0 = 0x0;
    rULCON0 = 0x3;
    rUCON0  = 0x245;   // Control register
    rUBRDIV0=( (int)(pclk/16./baud+0.5) -1 );   //Baud rate divisior register 0
       rGPBCON = 0x155555;
       data = 0x06;
       while(1)
       {   
          
           rGPBDAT = (data<<5);
           //dely(1200);
           data =~data;
        while(!(rUTRSTAT0 & 0x1));
        c = RdURXH0();
           while(!(rUTRSTAT0 & 0x2));   //Wait until THR is empty.
        //ch=c+0x30;
        WrUTXH0(c);       
        }
   }

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