Hello everyone,
I have zepyhr running on the Cyclone V according to the following instructions: https://docs.nordicsemi.com/bundle/ncs-2.5.2/page/zephyr/boards/arm/cyclonev_socdk/doc/index.html
Next I wanted to establish a simple network communication. I use the already written Example of a DHCP client under the directory .../zephyrproject/zephyr/samples/net/dhcpv4_client but the following error message appears:
[00:00:00.207,000] <err> net_if: There is no network interface to work with! *** Booting Zephyr OS build v4.0.0-3095-gd9eed167d06b *** Run dhcpv4 client [00:00:00.380,000] <wrn> net_if: No default interface found! uart:~$ device list devices: - intc@fffed000 (READY) DT node labels: intc - gpio@ff70a000 (READY) DT node labels: gpio2 - gpio@ff709000 (READY) DT node labels: gpio1 - gpio@ff708000 (READY) DT node labels: gpio0 - serial1@ffc03000 (READY) DT node labels: uart1 - serial0@ffc02000 (READY) DT node labels: uart0 - sysmgr@ffd08000 (READY) DT node labels: sysmgr
Normally, the Ethernet device should also be recognized (gmac0/gmac1) ...
I know that this example was not written explicitly for my hardware. I found the folder “Boards” in the project directory, which had a .conf file and an .overlay file, so I created two files cyclonev.conf & cyclonev.overlay. In the following I show my prj.conf and cyclonev.conf & cyclonev.overlay files:
prj.conf:#No changes have been made
CONFIG_NETWORKING=y
CONFIG_NET_IPV6=n
CONFIG_NET_IPV4=y
CONFIG_NET_ARP=y
CONFIG_NET_UDP=y
CONFIG_NET_DHCPV4=y
CONFIG_NET_DHCPV4_OPTION_CALLBACKS=y
CONFIG_DNS_RESOLVER=y
CONFIG_TEST_RANDOM_GENERATOR=y
CONFIG_INIT_STACKS=y
CONFIG_NET_MGMT=y
CONFIG_NET_MGMT_EVENT=y
CONFIG_NET_LOG=y
CONFIG_LOG=y
CONFIG_SLIP_STATISTICS=n
CONFIG_NET_SHELL=y
cyclonev.conf:
CONFIG_ETH_CYCLONEV=y
CONFIG_NET_L2_ETHERNET=y
CONFIG_NET_MGMT=y
CONFIG_NET_DHCPV4=y
CONFIG_NET_TCP=y
CONFIG_NET_LOG=y
CONFIG_NET_IPV4=y
cyclonev.overlay:
&gmac1 {
status = "okay";
local-mac-address = [e6 88 2d 82 1f d4];
};
&gmac0 {
status = "disabled";
};
I'll show you an excerpt from my zepyhr.dts file:gmac0: ethernet@ff700000 {
compatible = "snps,ethernet-cyclonev";
reg = < 0xff700000 0x2000 >;
interrupts = < 0x0 0x73 0x4 0xa0 >;
emac-index = < 0x0 >;
status = "disabled";
};
gmac1: ethernet@ff702000 {
compatible = "snps,ethernet-cyclonev";
reg = < 0xff702000 0x2000 >;
interrupts = < 0x0 0x78 0x4 0xa0 >;
emac-index = < 0x1 >;
status = "okay";
local-mac-address = [ E6 88 2D 82 1F D4 ];
};
I have tried a lot of other things. For example I tried to enable gmac1 and disable gmac0 or disable both but without success. I had seen the approach with the own .conf and the .overlay file several times (e.g. for a STM32). So I think my approach is correct, but no network interface is recognized (Ethernent). I hope that someone sees my mistake and can help me. I would be very grateful for that. Finally, I'll insert a small screenshot from the documentation showing which Ethernet interface I'm using:
