Handling interrupt on RAM version

Development Boards MicroMod
1

Hi everybody !

i’m writing a simple uart program (based on IAR LPC_Uart.c code) in a RAM (RAM_RUN) debug version.

i wrote this code to handle the different address of the pc address to pint the VICVectAddr register.

#if ROM_RUN
	ldr   pc, [pc,#-0xFF0]				/* .18 IRQ - read the VIC		*/
#else
  	ldr   pc, _irq_handler               /* SM IRQ handler 			*/
#endif

... some code

#if RAM_RUN
_irq_handler:	.word _my_irq
_irq_addr:		.word 0xFFFFF030
_my_irq:
	ldr	pc, _irq_addr
	b	.
#endif

Is it correct ?

if i run RAM version i have always problems both on RX and TX (FIQ(?) handler or PABT handler are called).

If i run ROM=FLASH version RX is OK (but TX doesn’t fire thre interrupt - but maybe it is a different problem …).

Thanks