Nios II seems stuck in reset mode, sysid and timestamp not found...

Hi,

I am trying to implement a Nios on my custom board.

The nios is simple:

- external clock 30MHz

- external reset_n (alt_pll_locked signal)

- nios II processor /s

- onchip memory: 131072 bytes

- sysid

- jtag_uart

- pio output 32bit initialize at 0x00000000

- custom driver (avalon mapped slave)

I have checked on the board both clock and reset_n signals (they are use and work for other vhd modules).

I written a simple program: alt_printf("hello") + IOWR(pio_base, 0, 0xFFFFFFFF) to test the nios but it doesn't work. The nios seems to be always in reset state:

-> I can program the nios using "nios2-download -r file.elf" command

-> I can open a jtag uart using nios2-terminal.exe

But both printf() and PIO have no effect on fpga and jtag_uart.

-> sysid and timestamp are "not found" so I can't go in debug mode. I have set BSP_editor settings (no small drivers, boot and run from onchip memory, enable sysid check, set sys_clk_timer, jtag_uart streams...)

I never had this problem before but it is the first nios I build with Quartus 11.1 sp2.

Maybe I forgot something simple but I have no clue :-/

Any idea ?

Thanks for help :-)

seb