Sir I have tested for the following code with PC hyperterminal its working fine for both send and receive the GSM response , but GSM SIM 300 with PIC 16F877A its working only for sending commands is fine but like sending message and dailing its ok but I want to check the whether its response is OK or error .So it will display only for Carrage return(CR) and Line feed (LF)values i have checked the ASCII table. because i have adding 0x30 to GSM data so it will display like =: on LCD so it will in the ASCII table but not display like OK
please help me... what are the instructions to do this getting like OK . I think it will not given OK from GSM SIM response please check my code and correct it ...
LCD display for only =:
i think its formate like \r\nOK\r\n but it will only display for \r\n
please help me sir...
please help me... what are the instructions to do this getting like OK . I think it will not given OK from GSM SIM response please check my code and correct it ...
C:
#ifndef _SERIAL_H_
#define _SERIAL_H_
#define _XTAL_FREQ 4000000L
//#ifndef _SERIAL_H_
#define _SERIAL_H_
#define BAUD 9600
#define FOSC 4000000L
#define NINE 0 /* Use 9bit communication? FALSE=8bit */
#define DIVIDER ((int)(FOSC/(16UL * BAUD) -1))
#define HIGH_SPEED 1
#if NINE == 1
#define NINE_BITS 0x40
#else
#define NINE_BITS 0
#endif
#if HIGH_SPEED == 1
#define SPEED 0x4
#else
#define SPEED 0
#endif
#define RX_PIN TRISC7
#define TX_PIN TRISC6
/* Serial initialization */
#define init_comms()\
RX_PIN = 1; \
TX_PIN = 1; \
SPBRG = DIVIDER; \
RCSTA = (NINE_BITS|0x90); \
TXSTA = (SPEED|NINE_BITS|0x20)
#endif
__CONFIG(XT & WDTDIS & PWRTEN & BORDIS & LVPDIS &
main()
{
INTCON = 0xC0;
init_comms();
wait(10);
lcd_init();
wait(10);
clearBuffer();
lcd_clear();
i=0;
Tx_string("AT\r");
while(RCIF)
{
buffer[I]=RCREG[I];
i++;
}
buffer= '\0';
for(i=0;buffer!='\0';i++)
{
buffer+= 0x30;
lcd_goto(0x00+i);
wait(10);
lcd_putch(buffer);
wait(50);
}
while(1);
void clearBuffer()
{
for(i = 0;i < 95;i++)buffer = ' ';
}i think its formate like \r\nOK\r\n but it will only display for \r\n
please help me sir...
Last edited by a moderator: