Nios® II Embedded Design Suite (EDS)
Support for Embedded Development Tools, Processors (SoCs and Nios® II processor), Embedded Development Suites (EDSs), Boot and Configuration, Operating Systems, C and C++
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
12436 Discussions

Problem about DM9000A and NicheStack....

Altera_Forum
Honored Contributor II
798 Views

Hi, 

Can you help me, 

1. 

When I'm using NicheStack(DM9000A as NIC),I met some strange problems: 

when i'm debugging TCP prot,the program entered ip_output() function.It triggered a panic(),and told me this message:  

ip_output: overflow 

The program crashed after this message... 

How to avoid this ? 

2. 

The bit[0] of DM9000A's TX Control Register (TCR) sometimes don't clear itself after sending completely. I wrote: 

while(ior(TCR)&0x01) 

udelay(5); 

and the program stuck here.... 

What should I do? 

 

Thank you
0 Kudos
0 Replies
Reply