After sending some data by the ROM_UARTCharPutNonBlocking() function to the UART, agian the same data is displayed in the interrupt handler... WHY?.....please give me a replay if u know.I am big confusion with this ...
clear cut:
*when i send the command AT\r\n to the gsm modem it has to give the reply "OK" this ok i kept in a buffer..after that i compared this buffer with my predefined buffer....here the problem is after sending the the command AT generally interrupt has raised...at that time in place of"ok" again the "AT" will be stores in side the buffer in the handler.....
ex:
unsigned char ok[]="OK\r\n";
while(1)
{
do
{
datasend("AT\r\n");
SysCtlDelay(1000);
SysCtlDelay(1000);
SysCtlDelay(1000);
}while((strcmp(ok,n))!=0);
void datasend(unsigned char *p)
{
ROM_UARTCharPutNonBlocking(UART0_BASE, *p);
*p++;
}
void
UART0IntHandler(void)
{
uint32_t ui32Status;
ui32Status = ROM_UARTIntStatus(UART0_BASE, true);
ROM_UARTIntClear(UART0_BASE, ui32Status);
ROM_UARTIntDisable(UART0_BASE, UART_INT_RX | UART_INT_RT);
while(ROM_UARTCharsAvail(UART0_BASE))
{
m[count]=ROM_UARTCharGetNonBlocking(UART0_BASE);
n[count]= m[count];
ROM_UARTCharPutNonBlocking(UART0_BASE,n[count]);
*after this function "OK" has to print...but in place of "ok" "AT" is printing......y so? please suggest me
count++;
if(count==6)
count=0;
}
ROM_UARTIntClear(UART0_BASE, ui32Status);
}
