After many many requests and complaints about lack of support and/or documentation for support of lwIP for the Altera TSE, I have developed a drop-in TSE driver and example program and made this available to the NIOS II community. This was done for NIOS II 8.1 SP0.01. I don't expect difficulty with version 9.x. This is for the latest version of lwIP (the latest is as of this post) for a minimal program and HTTP server based on the http server in the lwIP contrib folder. The lwIP TSE driver uses the altera_avalon_tse driver and SGDMA as-is. There is a complete (as in 41-step) set of instructions on creating the project and example program. More information and the link to the driver is available here: http://lwip.wikia.com/wiki/available_device_drivers#lwip_1.3.2 Please direct any questions, changes for NIOS II 9.1, or comments to this thread. 12-16-2010 update: This example works with NIOS Version 10.0 with some tweaks to the procedure to create the project. Also, a lwIP 1.4 release candidate has been out for a while and it drops into this example (in place of 1.3) without changes. Bill

Bill This looks great, but the examples zip file is gone 404 3. Download http://softools.com/download/lwip/lwip_nios_ii_example.zip test1]$ wget http://softools.com/download/lwip/lwip_nios_ii_example.zip --2010-06-21 11:40:12-- http://softools.com/download/lwip/lwip_nios_ii_example.zip Resolving softools.com... 68.180.151.73, 68.180.151.106, 68.180.151.111 Connecting to softools.com|68.180.151.73|:80... connected. HTTP request sent, awaiting response... 404 Not Found 2010-06-21 11:40:12 ERROR 404: Not Found. If you have an alternate link it will really help.

The link on the Wiki is correct. Maybe you need to flush your cache or force a page reload on the Wiki? I just tried it on FireFox and IE and all went OK. Bill

This link is in the ReadMe.txt, it may have been old directions. I will try to guess and post back

Oh, sorry, i thought you meant the link on the Wiki :mad: That link is the file you downloaded! If you have the ZIP, you have everything! The ReadMe has been updated to reflect that it means the file that you downloaded. Bill

Bill Thanks, that worked nicely. I just tested it on Stratix IV GX FPGA Development Kit (4sgx230). There are a couple of problems with the instructions 1) in step 18 It asks to delete the "contib" directory from the lwip, where I think we should be deleting the "test" directory. The "contrib" directory does not exist but the "test" directory does and causes build errors. 2) Even though you have mentioned it, but failing to initialize hwaddr[0-5] results in build error (probably intentional) All said, eclipse does not play well with home-grown SOPC components, whereas create-this-app script works correctly. I will try to integrate it with the script so I can use my components. I can post it here if you don't mind.

Altera TSE driver and example program for lwIP (1.3.2)

257 Replies

Altera_Forum
Honored Contributor
15 years ago
Tomas, I have# include "lwip/tcp_impl.h" in my main.c. In lwIP 1.3.2 TCP_TMR_INTERVAL was defined in tcp.h, but starting from lwIP 1.4.0rc1 this definition have been moved into tcp_impl.h. I don’t know why.

Altera_Forum

Honored Contributor

15 years ago

Seems like this causes an error-chain :)

Now I get error here:

# if LWIP_TIMERS && (MEMP_NUM_SYS_TIMEOUT < (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_AUTOIP + LWIP_IGMP + LWIP_DNS + PPP_SUPPORT))
 # error "MEMP_NUM_SYS_TIMEOUT is too low to accomodate all required timeouts"# endif

Error:


src/core/init.c:152:4: error:# error "MEMP_NUM_SYS_TIMEOUT is too low to accomodate all required timeouts"

Either I need to increase MEMP_NUM_SYS_TIMEOUT or disable some options like DHCP, etc. I choose first one and increase MEMP_NUM_SYS_TIMEOUT from 3 to 5. Then I get these errors:


obj/src/core/timers.o: In function `sys_timeouts_init':
C:\Projects\cycloneIII_3c120_dev_niosII\software\lwIP_NIOS_II_Example/src/core/timers.c:245: undefined reference to `sys_now'
obj/src/core/timers.o: In function `sys_check_timeouts':
C:\Projects\cycloneIII_3c120_dev_niosII\software\lwIP_NIOS_II_Example/src/core/timers.c:365: undefined reference to `sys_now'
obj/src/core/timers.o: In function `sys_restart_timeouts':
C:\Projects\cycloneIII_3c120_dev_niosII\software\lwIP_NIOS_II_Example/src/core/timers.c:405: undefined reference to `sys_now'
collect2: ld returned 1 exit status
make: ***  Error 1

sys_now() is prototyped in sys.h, but I can't find the function itself.

P.S. Maybe someone use lwIP with MicroC/OS-II?

Altera_Forum
Honored Contributor
15 years ago
I have no experience with UCOS. Does it work without OS and with# define NO_SYS 1 in lwipopts.h?

Altera_Forum

Honored Contributor

15 years ago

--- Quote Start ---

I have no experience with UCOS. Does it work without OS and with# define NO_SYS 1 in lwipopts.h?

--- Quote End ---

No, then I get this:


**** Build of configuration Nios II for project lwIP_NIOS_II_Example ****
make all 
Info: Building ../lwIP_NIOS_II_Example_bsp
make --no-print-directory -C ../lwIP_NIOS_II_Example_bsp
Info: Compiling alteraTseEthernetif.c to obj/alteraTseEthernetif.o
nios2-elf-gcc -xc -MP -MMD -c -I../lwIP_NIOS_II_Example_bsp/drivers/inc -I../lwIP_NIOS_II_Example_bsp/HAL/inc -I../lwIP_NIOS_II_Example_bsp -I../lwIP_NIOS_II_Example_bsp/drivers/inc -I. -Isrc/include -Isrc/include/ipv4  -DSYSTEM_BUS_WIDTH=32 -pipe -D__hal__ -DALT_NO_INSTRUCTION_EMULATION -DALTERA_TRIPLE_SPEED_MAC -DALT_SINGLE_THREADED    -O0 -g -Wall   -EL -mno-hw-div -mhw-mul -mno-hw-mulx  -o obj/alteraTseEthernetif.o alteraTseEthernetif.c
In file included from alteraTseEthernetif.c:47:
src/include/lwip/sys.h:107: error: expected ')' before '*' token
src/include/lwip/sys.h:110: error: expected ')' before '*' token
src/include/lwip/sys.h:113: error: expected ')' before '*' token
src/include/lwip/sys.h:116: error: expected ')' before '*' token
src/include/lwip/sys.h:119: error: expected ')' before '*' token
src/include/lwip/sys.h:123: error: expected ')' before '*' token
src/include/lwip/sys.h:142: error: conflicting types for 'sys_arch_sem_wait'
./arch/sys_arch.h:60: error: previous declaration of 'sys_arch_sem_wait' was here
src/include/lwip/sys.h:185: error: conflicting types for 'sys_arch_mbox_fetch'
./arch/sys_arch.h:57: error: previous declaration of 'sys_arch_mbox_fetch' was here
alteraTseEthernetif.c: In function 'low_level_init':
alteraTseEthernetif.c:83: warning: value computed is not used
make: ***  Error 1

Maybe I should try 1.32, since the driver is old? Or maybe I should use hello world example with RTOS enabled?

One guy here (afaik) on this thread succeeded running 1.4 or 1.4rc1, so I hope he could help me here. Ofcourse it would be perfect to get an example of working system with uC/OS-II and lwIP, but I still hope to do it myself.

Altera_Forum
Honored Contributor
15 years ago
Tomas, I get the same errors if I define NO_SYS 0 instead of 1. Verify, that you have
# define NO_SYS 1
in lwipopts.h and that this macro is not redefined in your code or compiler args.

Altera_Forum

Honored Contributor

15 years ago

--- Quote Start ---

Tomas, I get the same errors if I define NO_SYS 0 instead of 1. Verify, that you have

# define NO_SYS 1

in lwipopts.h and that this macro is not redefined in your code or compiler args.

--- Quote End ---

Yep, I use NO_SYS 1, but the error occoured is about sys_now() function.


**** Build of configuration Nios II for project lwIP_NIOS_II_Example ****
make all 
Info: Building ../lwIP_NIOS_II_Example_bsp
make --no-print-directory -C ../lwIP_NIOS_II_Example_bsp
Info: Linking lwIP_NIOS_II_Example.elf
nios2-elf-g++  -T'../lwIP_NIOS_II_Example_bsp/linker.x' -msys-crt0='../lwIP_NIOS_II_Example_bsp/obj/HAL/src/crt0.o' -msys-lib=hal_bsp -L../lwIP_NIOS_II_Example_bsp   -Wl,-Map=lwIP_NIOS_II_Example.map   -O0 -g -Wall   -EL -mno-hw-div -mhw-mul -mno-hw-mulx  -o lwIP_NIOS_II_Example.elf obj/alteraTseEthernetif.o obj/fs.o obj/fsdata.o obj/httpd.o obj/lwip_tse_mac.o obj/main.o obj/src/api/api_lib.o obj/src/api/api_msg.o obj/src/api/err.o obj/src/api/netbuf.o obj/src/api/netdb.o obj/src/api/netifapi.o obj/src/api/sockets.o obj/src/api/tcpip.o obj/src/core/def.o obj/src/core/dhcp.o obj/src/core/dns.o obj/src/core/init.o obj/src/core/ipv4/autoip.o obj/src/core/ipv4/icmp.o obj/src/core/ipv4/igmp.o obj/src/core/ipv4/inet.o obj/src/core/ipv4/inet_chksum.o obj/src/core/ipv4/ip.o obj/src/core/ipv4/ip_addr.o obj/src/core/ipv4/ip_frag.o obj/src/core/mem.o obj/src/core/memp.o obj/src/core/netif.o obj/src/core/pbuf.o obj/src/core/raw.o obj/src/core/snmp/asn1_dec.o obj/src/core/snmp/asn1_enc.o obj/src/core/snmp/mib2.o obj/src/core/snmp/mib_structs.o obj/src/core/snmp/msg_in.o obj/src/core/snmp/msg_out.o obj/src/core/stats.o obj/src/core/sys.o obj/src/core/tcp.o obj/src/core/tcp_in.o obj/src/core/tcp_out.o obj/src/core/timers.o obj/src/core/udp.o obj/src/netif/etharp.o obj/src/netif/ethernetif.o obj/src/netif/ppp/auth.o obj/src/netif/ppp/chap.o obj/src/netif/ppp/chpms.o obj/src/netif/ppp/fsm.o obj/src/netif/ppp/ipcp.o obj/src/netif/ppp/lcp.o obj/src/netif/ppp/magic.o obj/src/netif/ppp/md5.o obj/src/netif/ppp/pap.o obj/src/netif/ppp/ppp.o obj/src/netif/ppp/ppp_oe.o obj/src/netif/ppp/randm.o obj/src/netif/ppp/vj.o obj/src/netif/slipif.o -lm 
obj/src/core/timers.o: In function `sys_timeouts_init':
C:\Projects\cycloneIII_3c120_dev_niosII\software\lwIP_NIOS_II_Example/src/core/timers.c:245: undefined reference to `sys_now'
obj/src/core/timers.o: In function `sys_check_timeouts':
C:\Projects\cycloneIII_3c120_dev_niosII\software\lwIP_NIOS_II_Example/src/core/timers.c:365: undefined reference to `sys_now'
obj/src/core/timers.o: In function `sys_restart_timeouts':
C:\Projects\cycloneIII_3c120_dev_niosII\software\lwIP_NIOS_II_Example/src/core/timers.c:405: undefined reference to `sys_now'
collect2: ld returned 1 exit status
make: ***  Error 1

This function has prototype in sys.h header file, but there is no function itself anywhere... Could You please check where sys_now() function exist in Your project files?

Thanks.

BR,

Tomas D.

Altera_Forum
Honored Contributor
15 years ago
Tomas, this function is not defined in my project. The only reference to sys_now() in tcp_out.c is removed by preprocessor due to LWIP_TCP_TIMESTAMPS is 0, and 3 references in timers.c — due to LWIP_TIMERS is 0. In lwIP 1.4.0rc1 LWIP_TIMERS is defined in lwIP/src/include/timers.h as
# define LWIP_TIMERS (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS))
So, you should try
# define NO_SYS_NO_TIMERS 1
in lwipopts.h. I have this# define in my code (probably added while upgrading from v.1.3.2).
Altera_Forum
Honored Contributor
15 years ago
Hm, there's no such define on lwipopts.h in 1.40.
Could You please check whats defined here:
#define MEMP_NUM_SYS_TIMEOUT 3
If I leave this number 3, I get the fallowing error:

src/core/init.c:152:4: error:# error "MEMP_NUM_SYS_TIMEOUT is too low to accomodate all required timeouts" make: *** Error 1
So I've increased it to 5.

Maybe I should write to lwIP mailing list?

Edit:

commenting out those three lines of timers lets the code to compile. The system starts, sees that there is link (I've checked removing cable and it catches that there's no link), but arp doesn't respond. No arp - no ping response.

If I create my own function called sys_now() which returns 32bit variable with a number, increased every main cycle - the results are the same.
Altera_Forum
Honored Contributor
15 years ago
Tomas,
1)# define MEMP_NUM_SYS_TIMEOUT 3 works fine for me
2) You should ADD# define NO_SYS_NO_TIMERS 1 into lwipopts.h (for lwIP-1.3.2 this was not necessary)
Altera_Forum
Honored Contributor
15 years ago
--- Quote Start ---

2) You should ADD# define NO_SYS_NO_TIMERS 1 into lwipopts.h (for lwIP-1.3.2 this was not necessary)
--- Quote End ---

This line helped to solve compilation errors. Now the stack compiles, but it doesn't respond to ARP (and PING) requests.

I am sure my design is OK, because Simple Socket Server and Web Server examples are working fine.

I suppose the problem is RGMII interface.

Edit:

yep, that was RGMII issue - solved now by adding tse_my_system.c file from "Simple Socket Server (RGMII) example".

The stack works, thanks for help!

Edit2:

Now would be cool to run this on uCOS RTOS :-)

BR,
Tomas D.

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Altera TSE driver and example program for lwIP (1.3.2)

257 Replies

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