Single chip microcomputer +GSM module, always sending short messages, why only send one?

{

Delay (1);

UART 1 _ putstring(" AT+CIMI \ r \ n ")；

Delay (10);

for(I = 0； I & lt50; i++)

{

if (strstr(uart_buf，" AT+CIMI ")& amp； & ampstrstr(uart_buf，" OK "))

{

I = 5；

Break;

}

}

If(i==5) is broken;

}

Try to remove while( 1), and it will become as follows:

Invalid master (invalid)

{

uint 8 I；

UART 0 _ init()； //Serial port initialization

GSM _ init()； // TC35 initialization

EA = 1； //Enable interrupt

while( 1)

{

IGT = 1；

Delay (100);

IGT = 0；

Delay (100);

IGT = 1；

Delay (100);

Delay (100);

//Detect whether TC35 is started.

Break;

}

Delay (1);

UART 1 _ putstring(" AT+CIMI \ r \ n ")；

Delay (10);

for(I = 0； I & lt50; i++)

{

if (strstr(uart_buf，" AT+CIMI ")& amp； & ampstrstr(uart_buf，" OK "))

{

I = 5；

Break;

}

}

If(i==5) is broken;

led 2 = 1；

UART 0 _ flush _ buf()；

UART 1 _ flush _ buf()；

GSM _ send _ back(" AT \ r \ n ")；

GSM _ send _ back(" AT+CMGF = 1 \ r \ n ")；

GSM _ send _ back(" AT+CSMP = 17， 167，0，0 \ r \ n ")；

GSM _ send _ back(" AT+CSCS = GSM \ r \ n ")；

GSM _ send _ back(" AT+CMGS = 13645 16875 1 \ r \ n ")；

GSM _ send _ back(" hello \ x 0 1A ")；

}//corresponding main function