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AGSI: get the memory value on memory write trigger

I have the following setwatches:

  Agsi.SetWatchOnMemory(addr, addr, check_data_write, AGSIWRITE);
  Agsi.SetWatchOnMemory(addr, addr, check_data_read, AGSIREAD);

What I try to do is to trigger different functions when micro write / read to a memory address. This works fine except that there are unexpected triggers since I use AgsiReadMemory and AgsiWriteMemory in these functions (check_data_read and check_data_write).

void check_data_read()
{
   // return some data to the micro
   // by calling AgsiWriteMemory()
}

void check_data_write()
{
   // check what micro wrote
   // by calling AgsiReadMemory()
}

Is there a way to prevent these unexpected function triggers? I mean how can I know what micro wrote to that addres without using AgsiReadMemory? or how can i return a value to the micro on memoryread without calling AgsiWriteMemory?

0 Keil Software Support Intl. over 19 years ago

Just use a flag that prevents from recursions:

void check_data_read()
{
  static int called = 0;
  if (called)  return;
  called = 1;

   // return some data to the micro
   // by calling AgsiWriteMemory()

  called = 0;
}

0 Bahri Okuroglu over 19 years ago in reply to Keil Software Support Intl.

actually, i did it already. but i was wondering if there is another way, like calling some other function for memory access.

anyway, thx
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