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Altera_Forum
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Honored ContributorNios shell freezes after "booting kernel"
Hello all,
I'm a newbie in both Nios II and ucLinux. I've followed nioswiki's tutorial (http://www.nioswiki.com/installnios2linux) and sucessfully download a ucLinux image into an Altera DE2 board. The problem is, when I execute nios-terminal in the Nios shell, it freezes after: nios2-terminal: connected to hardware target using JTAG UART on cable nios2-terminal: "USB-Blaster [USB-0]", device 1, instance 0 nios2-terminal: (Use the IDE stop button or Ctrl-C to terminate) Uncompressing Linux... Ok, booting the kernel. The Nios system I've compiled the kernel whit is this one: (http://img34.imageshack.us/i/niosuclinux.png/) I've created the PLL for the SDRAM controller via Mega Wizard. Can anybody help me out with this? P.S.: I'm using a Open Core time limited sof to configure the FPGA. Can it be the problem?2 Replies
Altera_ForumHello, it's me again...
I figured my overly minimalist Nios design could be the problem. I followed phillip lutz's tutorial (http://www.hs-augsburg.de/~carcass/nios2-uclinux/uclinux_nios2_devicedrivers_and_testapplication_documentation.pdf) for porting ucLinux to the altera de2 board. It also freezes at "booting kernel...". I customized the DE2_NET example, as he advises. I also checked for IRQ 0 in the design. I ran: make xconfig && make vendor_hwselect SYSPTF=/pathtoptf/ && make romfs && make && make linux install then nios2-configure-sof DE2_NET.sof && nios2-download -g zImage && nios2-terminal What am I doing wrong? He says that it could also be a result from a broken initramfs image. Shouldn't make linux install take care of that?- Altera_Forum
1. to build nios2 uclinux, just make is enough to build kernel image. there should be no need to add other target, romfs,linux,install etc.
make menuconfig make vendor_hwselect make 2. please post your sopc file, we can look at it. - Hippo
