Digi International Inc XBEEPRO2 Manual Do Utilizador

Since the bootloader flash region is read-only, the interrupt vector table is redirected to the region 
0xF1C0 to 0xF1FD so that application developers can use hardware interrupts.  Note that in order for 
Application interrupts to function properly, the Application's linker command file (*.prm extension) 
must be modified appropriately to allow the linker to place the developers code in the correct place in 
memory.  For example, the developer desires to use the serial communications port SCI1 receive 
interrupt.  The developer would add the following line to the Codewarrior linker command file for the 
project…

VECTOR ADDRESS 0x0000F1E0  vSci1Rx

This will inform the linker that the interrupt function "vSci1Rx()" should be placed at address 
0x0000F1E0.  Next, the developer should add a file to their project "vector_table.c" that creates an 
array of function pointers to the ISR routines used by the application…Eg.

extern void _Startup(void);/* _Startup located in Start08.c */

extern void vSci1Rx(void);/* sci1 rx isr */  

extern short  iWriteToSci1(unsigned char *);

void vDummyIsr(void);

#pragma CONST_SEG VECTORS

void (* const vector_table[])(void) = /* Relocated Interrupt vector  table */{

vDummyIsr,/* Int.no.  0 Vtpm3ovf (at F1C0)Unassigned */

vDummyIsr,  /* Int.no.  1 Vtpm3ch5 (at F1C2)    Unassigned */

vDummyIsr,  /* Int.no.  2 Vtpm3ch4 (at F1C4)    Unassigned */

vDummyIsr,  /* Int.no.  3 Vtpm3ch3 (at F1C6)    Unassigned */

vDummyIsr,  /* Int.no.  4 Vtpm3ch2 (at F1C8)    Unassigned */

vDummyIsr,  /* Int.no.  5 Vtpm3ch1 (at F1CA)    Unassigned */

vDummyIsr,  /* Int.no.  6 Vtpm3ch0 (at F1CC)    Unassigned */

vDummyIsr,  /* Int.no.  7 Vrtc (at F1CE)        Unassigned */

vDummyIsr,  /* Int.no.  8 Vsci2tx (at F1D0)     Unassigned */

vDummyIsr,  /* Int.no.  9 Vsci2rx (at F1D2)     Unassigned */

vDummyIsr,  /* Int.no. 10 Vsci2err (at F1D4)    Unassigned */

vDummyIsr,  /* Int.no. 11 Vacmpx (at F1D6)      Unassigned */

vDummyIsr,  /* Int.no. 12 Vadc (at F1D8)        Unassigned */

vDummyIsr,  /* Int.no. 13 Vkeyboard (at F1DA)   Unassigned */

vDummyIsr,  /* Int.no. 14 Viic (at F1DC)        Unassigned */

vDummyIsr,  /* Int.no. 15 Vsci1tx (at F1DE)     Unassigned */

vSci1Rx,    /* Int.no. 16 Vsci1rx (at F1E0)     SCI1RX */

vDummyIsr,  /* Int.no. 17 Vsci1err (at F1E2)    Unassigned */

vDummyIsr,  /* Int.no. 18 Vspi (at F1E4)        Unassigned */

vDummyIsr,  /* Int.no. 19 VReserved12 (at F1E6) Unassigned */

vDummyIsr,  /* Int.no. 20 Vtpm2ovf (at F1E8)    Unassigned */

vDummyIsr,  /* Int.no. 21 Vtpm2ch2 (at F1EA)    Unassigned */

vDummyIsr,  /* Int.no. 22 Vtpm2ch1 (at F1EC)    Unassigned */

vDummyIsr,  /* Int.no. 23 Vtpm2ch0 (at F1EE)    Unassigned */

vDummyIsr,  /* Int.no. 24 Vtpm1ovf (at F1F0)    Unassigned */

vDummyIsr,  /* Int.no. 25 Vtpm1ch2 (at F1F2)    Unassigned */

vDummyIsr,  /* Int.no. 26 Vtpm1ch1 (at F1F4)    Unassigned */

vDummyIsr,  /* Int.no. 27 Vtpm1ch0 (at F1F6)    Unassigned */