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Alejandro
Joined: 25 Mar 2011 Posts: 7
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Problems with function definitions |
Posted: Mon May 23, 2011 4:42 pm |
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Hi. I'm defining a function as follows, when I compile the program I not have errors,
Code: |
int Modem_Wait_Rpta(char Buffer_TX,char Buffer_RX,int Nro_char) {
printf(Buffer_TX); // Mensaje a ser enviado al Modem
delay_ms(2000);
if (flag_RX_Modem){ // Hay datos en el UART
sprintf(Token,Buffer_RX); // Mensaje esperado del modem
if(!strncmp(Buffer_Modem,Token,Nro_char))
return 1;
else
return 0;
}
else
return 0;
}
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but when I call the function ...
Code: | while (Modem_Wait_Rpta("AT+SBD","+SBDI:1",9)); |
the compiler gives me the following error
Quote: | *** Error 90 "Modem_4x.c" Line 428(37,38): Attempt to create a pointer to a constant |
Someone could tell me what my error and how to fix this. |
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PCM programmer
Joined: 06 Sep 2003 Posts: 21708
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Posted: Mon May 23, 2011 5:27 pm |
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To fix the error message, add the #device statement shown in bold below:
Quote: |
#include <16F877.H>
#device PASS_STRINGS=IN_RAM
#fuses XT, NOWDT, BROWNOUT, PUT, NOLVP
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)
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Also, you are passing char pointers as your function parameters. So the
parameters should be declared as char pointers, as shown below in bold.
Quote: |
int Modem_Wait_Rpta(char *Buffer_TX, char *Buffer_RX, int Nro_char)
{
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