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afk_pic
Joined: 02 Jun 2020
Posts: 19
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| Error with function pointer |
 Posted: Wed Sep 08, 2021 9:15 am |
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Hello,
I have this error and I need help, because this code works in other projects.
I have this error:
| Code: |
*** Error 144 "source\main.c" Line 297(1,1): No valid assignment made to function pointer 1779 from=??0 0 SCR=9430
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My code gets a character from UART on every interrupt and it stores all chars received until the char "\0" carriage return. Then I pass this string by parameter to a function to analyze this string and parse arguments.
My main have this code:
main.c
| Code: |
#include "halRS232.h"
#if EXEC_UART_INT
#INT_RDA //interrupciones del puerto rs232 rx
void rda_isr(void)
{
char rx = getc(UART1);
char endMsg = rxStringFromRS232(rx, rxRs232, 20);
if (endMsg == 1)
{
msgDecoder(rxRs232, cmd, arg1, arg2, arg3); //the error is here
flagRS2323RxMsg = TRUE;
}
/////////////////////////////////////////////////////////////
clear_interrupt(INT_RDA);
enable_interrupts(INT_RDA);
}
#else
#endif
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halRS232.c
| Code: |
void msgDecoder (char* msgToAnlze, char* cmd, char* arg1, char* arg2, char* arg3)
{
static char* stringResult;
char delimiter[] = " ";
char numArgs = 0;
strcpy(cmd, "");
strcpy(arg1, "");
strcpy(arg2, "");
strcpy(arg3, "");
stringResult = strtok(msgToAnlze, delimiter);
strcpy(cmd, stringResult);
if(stringResult != NULL){
while(stringResult != NULL){
numArgs = numArgs + 1;
switch (numArgs) {
case 1:
strcpy(cmd, stringResult);
break;
case 2:
strcpy(arg1, stringResult);
break;
case 3:
strcpy(arg2, stringResult);
break;
case 4:
strcpy(arg3, stringResult);
break;
default:
break;
}
stringResult = 0;
stringResult = strtok(NULL, delimiter);
}
}
//fin
}
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halRS232.h
| Code: |
void msgDecoder (char* msgToAnlze, char* cmd, char* arg1, char* arg2, char* arg3);
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Any idea??
Regards and thanks. |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed Sep 08, 2021 9:46 am |
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I don't see a declaration of a function pointer anywhere in your program.
You also didn't post your variable declarations.
This guy is actually using function pointers and he gets the same
error message as you do:
http://www.ccsinfo.com/forum/viewtopic.php?t=59013&start=4 |
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afk_pic
Joined: 02 Jun 2020
Posts: 19
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| Posted: Wed Sep 08, 2021 11:50 pm |
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Hello,
this are my variables:
| Quote: |
unsigned char rxRs232[20];
unsigned char dummyString[20];
unsigned char command[10], argv1[10], argv2[10], argv3[10];
bool flagRS2323RxMsg = FALSE;
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I insist in the fact that this code works in other project, has the same variable declarations even halRS232.c /.h are identical...very strange.
Thanks!
EDIT:
I have solved the issue: only I moved the function declaration msgDecoder to a new file .h and .c
EDIT2:
Calling the function in my void main (void) it's works. But if I call the function in the interrupt routines gives me the same error, check the op thread.
| Code: |
#if EXEC_UART_INT
#INT_RDA //interrupciones del puerto rs232 rx
void rda_isr(void)
{
char rx = getc(UART1);
char endMsg = rxStringFromRS232(rx, rxRs232, 20);
if (endMsg == 1)
{
msgDecoder(rxRs232, command, argv1, argv2, argv3);
flagRS2323RxMsg = TRUE;
}
/////////////////////////////////////////////////////////////
clear_interrupt(INT_RDA);
enable_interrupts(INT_RDA);
}
#else
#endif
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EDIT3:
Looks the problem is with the name of the header/source file...I copied the function to another header/source file and it works. |
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