how to enable watch expressions on BL2000

error is “watch support not enabled on target” bl2000

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There is a sample demo that allows you to update the watch expression while running.


 Z-World, 1999

 Demonstration of using the Jackrabbit Development Board

 This program will repeatedly flash LED DS3 on the Jackrabbit Development Board
 (bit 2 on port A).  This program also shows the use of the runwatch()
 function to allow Dynamic C to update watch expressions while running.
 To test this:

	 1. 	add a watch expression for "k" under "Inspect:Add/Del Watch Expression"
	 2.	click "Add to top" so that it will be permanently in the watch list
	 3.	while the program is running, type Ctrl+U to update the watch window

// Set a default of declaring all local variables “auto” (on stack)
#class auto

// C programs require a main() function
void main()
static int j; // define an integer j to serve as a loop counter
static int k; // define a counter k to test the watch expression with

// Write 84 hex to slave port control register which initializes parallel
// port A as an output port (port A drives the LED's on the development board).

WrPortI(SPCR, &SPCRShadow, 0x84);

k=0;		// initialize k to zero

// now write all ones to port A which sets outputs high and LED's off

WrPortI(PADR, &PADRShadow, 0xff);

while(1) {  // begin an endless loop

	BitWrPortI(PADR, &PADRShadow, 1, 2);  // turn LED DS3 off

	for(j=0; j<25000; j++)
		; // time delay loop

	BitWrPortI(PADR, &PADRShadow, 0, 2);  // turn LED DS3 on

	for(j=0; j<1000; j++)
		; // time delay loop

	k++;					// increment k
	runwatch();			// update watch expressions for Dynamic C to read

}	// end while loop

} // end program