QUARTUS 4.2 NIOS 1.1 UPDATE PROBLEM

Thanks for your reply,

I'm a little bit confused, what is wrong.

First the part of the ptf file for this component is equal to that of Quartus

4.1 (only one additional line " Clock_Source = "clk"; "

looking at io.h

..

/* Native bus access functions */

# define __IO_CALC_ADDRESS_NATIVE(BASE, REGNUM)

((void *)(((alt_u8*)BASE) + ((REGNUM) * (SYSTEM_BUS_WIDTH/8))))

# define IORD(BASE, REGNUM)

__builtin_ldwio (__IO_CALC_ADDRESS_NATIVE ((BASE), (REGNUM)))# define IOWR(BASE, REGNUM, DATA)

__builtin_stwio (__IO_CALC_ADDRESS_NATIVE ((BASE), (REGNUM)), (DATA))

..

by using IORD(..)

__IO_CALC_ADDRESS_NATIVE already makes a multiplication of register * 4

the base adress of my component is 0x903000

IORD(baseadd,0x01) results in __builtin_ldwio(0x903004)

which should read Register 1 of my slave

the first time I get A0=1 of my slave (A2 of CPU) is by reading

IORD(baseadd,0x10) results in __builtin_ldwio(0x903040)

but the addtress bus of the cpu is 0x????04

Multiplication of all offsets by 4, before calling IORD is a workaround,

but no slolution.

is the above ptf file correct for this component ?

is this a bug in SOPC Buider 4.2 ?

Quartus 4.2 ?

NIOS 1.1 ?

is it only a project conversion problem from 4.1 to 4.2 ?

(I regenerated the system in SOPC Builder 4.2 and recompiled with Quartus 4.2)