Not receiving data on ethernet (FRDM-K64F)

[otavioborges]

I followed the tutorial on MCUoneclipse for using lwIP and FreeRTOS (Tutorial: lwip with FreeRTOS and the Freescale FRDM-K64F Board | MCU on Eclipse​) and I manage to start the lwIP task and see the output on semihosting console.

Although, I was not getting any response on the ethernet (green led on RJ-45 socket did not lit), I checked and Rx ethernet event were never trigered and lwIP was not able to get IP from DHCP. I tried changing the cable and other ports on the router. I connected the board to my laptop and windows did not reconized that the cable was connected.

Anyone had a similar problem?

[mjbcswitzerland]

Hi

Check your HW by loading a binary from http://www.utasker.com/kinetis/FRDM-K64F.html

Regards

Mark

[otavioborges]

Thanks mark,

I uploaded the uTaskerV1.4.8_FRDM-K64F_LAN.bin​ binary through mbed bootloader. I was able to access terminal application from utasker and went to LAN configurations, it had 192.168.0.3 IP (wich was on my subnet domain) and the correct gateway. Nonetheless, LAN did not work, green led did not lit once, I could not access the WEB server, even after I enabled it. The strangest thing is that I had 00-00-00-00-00-00 for MAC address. Is this a sign for bad ethernet interface? I tried changing the phy register without success. The attached image has a screenshot from the utasker terminal

[mjbcswitzerland]

Hi

The MAC address defaults to 00-00-00-00-00-00 but you can program a value in the LAN menu using the (secret command)

MAC 00-00-00-01-02-03 (for example). This will be saved and the board resets, after which it uses the new/final MAC address.

My feeling is that you have either a HW problem with the board or else with the cable being used. Attached is a version which will also display the state of the connection as follows:

Initially the LAN cable is not connected:

 LAN configuration
===================
up                  go to main menu
phy                 Dump PHY registers
set_phy              
set_dhcp            <enable/disable> DHCP
set_ip_add          Set IPV4 address
set_ip_mask         Set IP subnet mask
set_ip_gway         Set default gateway
set_ip_dns          Set default DNS
set_eth_speed       Set LAN speed (10/100/AUTO)
show_config         Show network configuration
show_config_o       Show original network configuration
save                Save configuration to FLASH
validate            Validate temporary config. in FLASH
ping                Ping test IP address
arp -a              Request ARP table
arp -d              Delete ARP table
hosts               List multicast host groups
join                [multicast] join group
leave               [host ID] leave group
multi                send test frame
help                Display menu specific help
quit                Leave command mode

#phy
Reg: 0x00 = 0x3100
Reg: 0x01 = 0x7849
Reg: 0x02 = 0x0022
Reg: 0x03 = 0x1560
Reg: 0x04 = 0x85e1
Reg: 0x05 = 0x0000
Reg: 0x06 = 0x0004
Reg: 0x07 = 0x2001
Reg: 0x08 = 0x0000
Reg: 0x15 = 0x0000
Reg: 0x1b = 0x0000
Reg: 0x1e = 0x0000
Reg: 0x1f = 0x8100
                                    The cable is inserted here
#Eth0 link-up 100 full-duplex
phy
Reg: 0x00 = 0x3100
Reg: 0x01 = 0x786d
Reg: 0x02 = 0x0022
Reg: 0x03 = 0x1560
Reg: 0x04 = 0x85e1
Reg: 0x05 = 0x0080
Reg: 0x06 = 0x0004
Reg: 0x07 = 0x2001
Reg: 0x08 = 0x0000
Reg: 0x15 = 0x0000
Reg: 0x1b = 0x0000
Reg: 0x1e = 0x0116
Reg: 0x1f = 0x8100

show_config

IPV4 address = 192.168.0.45
MAC address = 00-00-00-00-00-00
Subnet mask = 255.255.255.0
Default gateway = 192.168.0.1
DNS server = 192.168.0.1
LAN speed AUTO
DHCP_SERVER - disabled

Notice that the PHY registers change content when the cable is inserted and the values that you show are those when there is no cable connected!

Regards

Mark

[otavioborges]

Tried changing the cable and register 0x01 did not change.

PHY seems to be working (did a little check on the datasheet), I checked the signs on the RJ-45 and did not find anything unusual.

I'll try to unsolder the connector and put a new one.