W5500 Ethernet controller on OpenMV

[piliwilliam]

Hi all,

I was wondering if anyone successfully built the openmv with the "MICROPY_PY_WIZNET5K=5500" flag?
Below is the error when I try to build it.
Thanks,
Will

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CC src/usbd_uvc_if.c
CC src/usbd_conf.c
CC src/main.c
CC src/usbd_core.c
CC src/usbd_ctlreq.c
CC src/stm32fxxx_it.c
CC src/string0.c
CC src/usbd_uvc.c
CC src/usbd_ioreq.c
CC src/usbd_desc.c
CC src/systick.c
make[1]: Leaving directory '/home/piliwilliam/openmv/src/uvc'
/home/piliwilliam/openmv/src/build/micropython/modnetwork.o:(.rodata.mp_module_network_globals_table+0xc): undefined reference to `mod_network_nic_type_wiznet5k'
collect2: error: ld returned 1 exit status
Makefile:497: recipe for target 'firmware' failed
make: *** [firmware] Error 1

[kwagyeman]

It looks like you need to edit the MakeFile to include the wiznet c code. Usually, this means you need to find what .c file makes that thing up and add it to the MakeFile which compiles the C file and you also need to edit the main MakeFile that links the .o files.

[JackBonnell]

Having the same issue the screenshot showed the relevant files needed for this variable are available i'm not expert in C code but any help would be very much appreciated as there is only a hand full of comments on this error online.

[kwagyeman]

You need to edit the make file system to include the compile the specified file and then include the .o.

I don’t actually know which files you need to modify. However, it’s not hard. You just have to go into the make files and add the missing file in the right places.

[JackBonnell]

This is a update of my findings:

Using the "MICROPY_PY_WIZNET5K=5500" flag:

this files the compiling of the c code in the stm32/makefile

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ifneq ($(MICROPY_PY_WIZNET5K),0)
WIZNET5K_DIR=drivers/wiznet5k
INC += -I$(TOP)/$(WIZNET5K_DIR)
CFLAGS_MOD += -DMICROPY_PY_WIZNET5K=$(MICROPY_PY_WIZNET5K) -D_WIZCHIP_=$(MICROPY_PY_WIZNET5K)
ifeq ($(MICROPY_PY_LWIP),1)
# When using MACRAW mode (with lwIP), maximum buffer space must be used for the raw socket
CFLAGS_MOD += -DWIZCHIP_USE_MAX_BUFFER
endif
SRC_MOD += network_wiznet5k.c modnwwiznet5k.c
SRC_MOD += $(addprefix $(WIZNET5K_DIR)/,\
	ethernet/w$(MICROPY_PY_WIZNET5K)/w$(MICROPY_PY_WIZNET5K).c \
	ethernet/wizchip_conf.c \
	ethernet/socket.c \
	internet/dns/dns.c \
	)
endif

This error is still occurring even when i have added the o files that have been compiled in the

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$(BUILD)/$(MICROPY_DIR)/drivers/

After added the relevant compiled libraries into the build in the /src/MakeFile

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ifneq ($(MICROPY_PY_WIZNET5K),0)
FIRM_OBJ += $(addprefix $(BUILD)/$(MICROPY_DIR)/drivers/,\
	wiznet5k/ethernet/w$(MICROPY_PY_WIZNET5K)/w$(MICROPY_PY_WIZNET5K).o \
	wiznet5k/ethernet/wizchip_conf.o \
	wiznet5k/ethernet/socket.o \
	wiznet5k/internet/dns/dns.o \
	)
endif

This is still causing the original issue

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/home/jack/Development/OPENMV_FIRMWARE/openmv/src/build/micropython/modnetwork.o:(.rodata.mp_module_network_globals_table+0xc): undefined reference to `mod_network_nic_type_wiznet5k'
collect2: error: ld returned 1 exit status
Makefile:674: recipe for target 'firmware' failed
make: *** [firmware] Error 1

There is only one modnetwork.o so that doesnt need to be changed. all the relevant files are in place. I am unsure what 'mod_network_nic_type_wiznet5k' maybe its a parameter needed in the make file i have logged an issue with the micropython github hopefully they can give me the parameter i need to declare: https://github.com/micropython/micropython/issues/6625

[iabdalkader]

You need to link the object file that has the object, grep is your friend:

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> grep -r mod_network_nic_type_wiznet5k *
ports/stm32/modnwwiznet5k.c:    wiznet5k_obj.base.type = (mp_obj_type_t*)&mod_network_nic_type_wiznet5k;
ports/stm32/modnwwiznet5k.c:const mod_network_nic_type_t mod_network_nic_type_wiznet5k = {

In that file you'll see that it also needs LWIP enabled:

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#if MICROPY_PY_WIZNET5K && !MICROPY_PY_LWIP

[JackBonnell]

Hi,
Thank you for the response you're a life saver, wish i knew about grep before! it has fixed all my issues! now on to testing
That a hardware engineer trying to learn firmware for you
I will make a pull request in the morning!
All the Best,
Jack

[JackBonnell]

Now Receiving this error:

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Warning: FROZEN_MPY_DIR is deprecated in favour of FROZEN_MANIFEST
CC modnetwork.c
In file included from /home/jack/Development/OPENMV_FIRMWARE/openmv/src/micropython/py/objlist.h:29:0,
                 from modnetwork.c:31:
modnetwork.c:148:46: error: 'mod_network_nic_type_winc' undeclared here (not in a function); did you mean 'mod_network_nic_type_wiznet5k'?
     { MP_ROM_QSTR(MP_QSTR_WINC), MP_ROM_PTR(&mod_network_nic_type_winc) },
                                              ^
/home/jack/Development/OPENMV_FIRMWARE/openmv/src/micropython/py/obj.h:249:24: note: in definition of macro 'MP_ROM_PTR'
 #define MP_ROM_PTR(p) (p)
                        ^
../../py/mkrules.mk:47: recipe for target '/home/jack/Development/OPENMV_FIRMWARE/openmv/src/build/micropython/modnetwork.o' failed
make[1]: *** [/home/jack/Development/OPENMV_FIRMWARE/openmv/src/build/micropython/modnetwork.o] Error 1
Makefile:643: recipe for target 'FIRMWARE_OBJS' failed
make: *** [FIRMWARE_OBJS] Error 2

when is use the grep command i get this:

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grep -r mod_network_nic_type_winc *
build/micropython/genhdr/qstr.i.last:    { ((mp_obj_t)((((mp_uint_t)(MP_QSTR_WINC)) << 2) | 2)), (&mod_network_nic_type_winc) },
micropython/ports/stm32/modnetwork.h:extern const mod_network_nic_type_t mod_network_nic_type_winc;
micropython/ports/stm32/modnetwork.c:    { MP_ROM_QSTR(MP_QSTR_WINC), MP_ROM_PTR(&mod_network_nic_type_winc) },
omv/py/py_winc.c:static const winc_obj_t winc_obj = {{(mp_obj_type_t*)&mod_network_nic_type_winc}};
omv/py/py_winc.c:const mod_network_nic_type_t mod_network_nic_type_winc = {

All of these files except for :
build/micropython/genhdr/qstr.i.last

are accounted for in the make files, is there anything obvious im missing?

[kwagyeman]

You've disabled the winc1500, you need to re-enable it too or remove that line.

[JackBonnell]

Forcing the compile flag has the same result with or without

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MICROPY_PY_WIZNET5K=5500

same error as above has been causing with:

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 make TARGET=OPENMV4 MICROPY_PY_LWIP=1 MICROPY_PY_WINC1500=1

when force disable MICROPY_PY_WINC1500 with:

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make TARGET=OPENMV4 MICROPY_PY_WIZNET5K=5500 MICROPY_PY_LWIP=1 MICROPY_PY_WINC1500=0

This is my error message:

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CC src/systick.c
/usr/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld: /home/jack/Development/OPENMV_FIRMWARE/openmv/src/build/bin/firmware.elf section `.text' will not fit in region `FLASH_TEXT'
/usr/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld: /home/jack/Development/OPENMV_FIRMWARE/openmv/src/build/bin/firmware.elf section `._heap' will not fit in region `SRAM1'
/usr/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld: region `SRAM1' overflowed by 24012 bytes
/usr/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld: region `FLASH_TEXT' overflowed by 16 bytes
/home/jack/Development/OPENMV_FIRMWARE/openmv/src/build/micropython/modnetwork.o: In function `pyb_lwip_poll':
/home/jack/Development/OPENMV_FIRMWARE/openmv/src/micropython/ports/stm32/modnetwork.c:61: undefined reference to `wiznet5k_poll'
/home/jack/Development/OPENMV_FIRMWARE/openmv/src/build/micropython/modnetwork.o:(.rodata.mp_module_network_globals_table+0xc): undefined reference to `mod_network_nic_type_wiznet5k'
collect2: error: ld returned 1 exit status
Makefile:667: recipe for target 'firmware' failed
make: *** [firmware] Error 1

It looks likes LWIP is causing this somehow, any ideas?

[iabdalkader]

I see multiple issues, first if you want to disable modules like WINC you need to edit this file:

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omv/boards/OPENMV4/omv_boardconfig.mk

Set WINC to 0.

I think this config will work for you:

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MICROPY_PY_ULAB = 0
MICROPY_PY_WINC1500 = 0
MICROPY_PY_IMU = 0
MICROPY_PY_LWIP = 1
MICROPY_PY_WIZNET5K = 1

/usr/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld: region `SRAM1' overflowed by 24012 bytes
/usr/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld: region `FLASH_TEXT' overflowed by 16 bytes

If you get this you need to disable things until the firmware fits, try to disable things in imlib_config.h and you need to lower the heap in omv_boardconfig.h

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/home/jack/Development/OPENMV_FIRMWARE/openmv/src/build/micropython/modnetwork.o: In function `pyb_lwip_poll':
/home/jack/Development/OPENMV_FIRMWARE/openmv/src/micropython/ports/stm32/modnetwork.c:61: undefined reference to `wiznet5k_poll'

I think the above config will fix these.

Finally keep in mind that even if it builds it still may not work with our firmware, it may be missing a callback or something, so you're on your own here.