LPC2148 RL-Flash FS Problem

Hello

I am using LPC2148 - 12 Mhz Crystal. I followed the instructions from Keil Website and tried to create a program to read/write to MMC/SD Memory card. I have included the required files and have written code for UART. I do have little problems when I test the code.

1. Uart works fine when I did not call fopen. If I include the code for fopen, UART never works.

2. The Card never gets initialized.

Included Files

FS_ARM_L.LIB
File_Config.C

Configured File_Config.C and Enabled Memory Card Drive0

Using Uart.h as follows for Initialization:
-------------------------------------
void Init_UART0(void)
{ unsigned short u0dl; u0dl = (15 * 1000000) / (16 * 115200);

PINSEL0 |= 0x00000005; U0LCR = 0x00000083;

U0FCR=0x07; U0DLL = u0dl & 0xFF; U0DLM = (u0dl>>8);

U0LCR = 0x00000003; U0IER = 0x00000003;

}
-----------------------------------------------

Init_Card / Main ----- Function in Main.C

-------------------------------------------------

static void init_card (void) { U32 retv;

while ((retv = finit (NULL)) != 0) { /* Wait until the Card is ready*/

if (retv == 1) { putchara('?'); } else { putchara('*'); } }
}

/*******************************************************/
/*****************MAIN STARTS HERE *********************/
/*******************************************************/
int main(void)
{ char ss; FILE *f; U32 retv;

Init_UART0(); //printf("sdf"); putchara('&'); //printf ("\nSD/MMC Init Failed"); init_card(); putchara('S');

f = fopen ("\\test1.txt","w"); if (f == NULL) { putchara('#'); } else { fclose (f); }

}

---------------------------------------------------

I dont know what I am missing here. Please advise.