Thread: how to put a check on an extern variable set as flag

Hello,

@matsp, sorry i didnt understand your last post. Beside that i have one confusion or a question and i hope you can answer that. My main concern is that if i ll try to run my routines in main code, without any infinte loop they never work.

Code:

/* main file */
extern USIGN8 RX_TEST;
extern USIGN8 RX_Receive_Test;

VOID main (VOID)

if(RX_TEST==1) // flag set in sync pin ISR if the receive packet bytes are      corrupted
{
  perform function a();
  flush RX_Fifo();
  set SYNC pin low();
  blink LED1();
  RX_Test=0;  // set the global variable again to 0;
  

}
else if (RX_Receive_Test ==1)// flag set in SYNC pin ISR if the packet is complete
{
  perform function b();
  dispatch_frame_into_another_buffer();
  flush RX_Fifo();
  blink LED2();
  RX_Receive_Test=0;
}

But if i ll put this whole code into a while(1), infinte loop i ll see my system working and LED 1 or 2 blinking, further i can stop debugging and verify the contents of the packet. could anyone please guide, do we need some kind of loops to run the system into an interrupt.

Code:

extern USIGN8 RX_TEST;
extern USIGN8 RX_Receive_Test;

VOID main (VOID)
while(1)
{
if(RX_TEST==1) // flag set in sync pin ISR if the receive packet bytes are      corrupted
{
  perform function a();
  flush RX_Fifo();
  set SYNC pin low();
  blink LED1();
  RX_Test=0;  // set the global variable again to 0;
  

}
else if (RX_Receive_Test ==1)// flag set in SYNC pin ISR if the packet is complete
{
  perform function b();
  dispatch_frame_into_another_buffer();
  flush RX_Fifo();
  blink LED2();
  RX_Receive_Test=0;}

@ mats, could you provide some dummy code example, that how this operation could be acheived in a multi-source file enviorment.

Best Regards
RebelSoul