Posted on March 08, 2006 at 13:40Dear friends,
We are using ST72F561T6AR9 for one of our products.
We are using the TLI interrupt of ST7 for back storing of our data. We are using the timer A interrupt (Time interrupt after every 1mS).
The serial interrupt SCI1 is used for normal serial communication.
Priorities of all Interrupts are not changed & natural or Default Priorities are maintained.
There is a health showing LED toggle code written in main function's while loop.
Now when ever we start the module (i.e. TLI, Timer A & SCI 1 all are enabled & timer is giving the interrupt after every 1mS).
If I give a low going signal on TLI then my programme do not go back in main after executing the TLI routine. (The health LED holds its state & do not toggle).
The timer ISR is still functioning (confirmed by toggling one of the IO pins in the Timer ISR).
Kindly suggest the solution for such situation where we want the TLI to be enabled & at the same time it needs to return to main.
When we try to disable the TLI at the start of timer ISR & re-enable it at the end of timer ISR the situation is bit improved.
Kindly suggest any possible solution for such behaviour.
