板蓝根 发表于 2021-9-9 12:31
dts 没有就不需要陪，请确认一下你自己使用的通道是否正确，通道分 m0/m1 ，还有回环测试 TX/RX 窗口延时。 ...
通道确认正确，相同的核心板和固件在购买的配套底板上正常运行。跟硬件工程师确认RMII_TX**和RMII_RX**没有做50OHM阻抗。
我使用phy_lb_scan节点扫描没有得到窗口，全都是空白。 这个问题是PCB走线问题吗？
[ 2053.057470] Delayline scan speed set to 100
[ 2053.342557] dwmac4: Master AXI performs any burst length
[ 2053.542976] RX(0x00):
[ 2053.588371] RX(0x01):
[ 2053.633120] RX(0x02):
[ 2053.678038] RX(0x03):
[ 2053.722948] RX(0x04):
[ 2053.767825] RX(0x05):
[ 2053.812603] RX(0x06):
[ 2053.857446] RX(0x07):
[ 2053.902289] RX(0x08):
[ 2053.947167] RX(0x09):
[ 2053.992094] RX(0x0a):
[ 2054.037083] RX(0x0b):
[ 2054.082007] RX(0x0c):
[ 2054.127194] RX(0x0d):
[ 2054.172217] RX(0x0e):
[ 2054.217344] RX(0x0f):
[ 2054.262309] RX(0x10):
[ 2054.307067] RX(0x11):
[ 2054.351985] RX(0x12):
[ 2054.396969] RX(0x13):
[ 2054.441370] RX(0x14):
[ 2054.486288] RX(0x15):
[ 2054.531247] RX(0x16):
[ 2054.576033] RX(0x17):
[ 2054.620988] RX(0x18):
[ 2054.665982] RX(0x19):
[ 2054.710778] RX(0x1a):
[ 2054.755590] RX(0x1b):
[ 2054.800402] RX(0x1c):
[ 2054.845299] RX(0x1d):
[ 2054.890233] RX(0x1e):
[ 2054.935111] RX(0x1f):
[ 2054.979889] RX(0x20):
[ 2055.024741] RX(0x21):
[ 2055.069765] RX(0x22):
[ 2055.114529] RX(0x23):
[ 2055.159475] RX(0x24):
[ 2055.204199] RX(0x25):
[ 2055.249133] RX(0x26):
[ 2055.294008] RX(0x27):
[ 2055.338733] RX(0x28):
[ 2055.383780] RX(0x29):
[ 2055.428589] RX(0x2a):
[ 2055.473155] RX(0x2b):
[ 2055.518055] RX(0x2c):
[ 2055.562867] RX(0x2d):
[ 2055.607703] RX(0x2e):
[ 2055.652564] RX(0x2f):
[ 2055.697493] RX(0x30):
[ 2055.742325] RX(0x31):
[ 2055.787281] RX(0x32):
[ 2055.832001] RX(0x33):
[ 2055.876811] RX(0x34):
[ 2055.921544] RX(0x35):
[ 2055.966368] RX(0x36):
[ 2056.011254] RX(0x37):
[ 2056.055967] RX(0x38):
[ 2056.101451] RX(0x39):
[ 2056.146713] RX(0x3a):
[ 2056.191614] RX(0x3b):
[ 2056.236534] RX(0x3c):
[ 2056.281451] RX(0x3d):
[ 2056.326419] RX(0x3e):
[ 2056.371149] RX(0x3f):
[ 2056.416089] RX(0x40):
[ 2056.460759] RX(0x41):
[ 2056.505822] RX(0x42):
[ 2056.550858] RX(0x43):
[ 2056.595918] RX(0x44):
[ 2056.640832] RX(0x45):
[ 2056.685724] RX(0x46):
[ 2056.730670] RX(0x47):
[ 2056.775531] RX(0x48):
[ 2056.820431] RX(0x49):
[ 2056.865287] RX(0x4a):
[ 2056.910182] RX(0x4b):
[ 2056.955030] RX(0x4c):
[ 2057.000055] RX(0x4d):
[ 2057.044916] RX(0x4e):
[ 2057.089852] RX(0x4f):
[ 2057.134584] RX(0x50):
[ 2057.179532] RX(0x51):
[ 2057.224344] RX(0x52):
[ 2057.269223] RX(0x53):
[ 2057.314138] RX(0x54):
[ 2057.359038] RX(0x55):
[ 2057.403966] RX(0x56):
[ 2057.448458] RX(0x57):
[ 2057.493425] RX(0x58):
[ 2057.538369] RX(0x59):
[ 2057.583411] RX(0x5a):
[ 2057.628242] RX(0x5b):
[ 2057.673253] RX(0x5c):
[ 2057.718061] RX(0x5d):
[ 2057.763089] RX(0x5e):
[ 2057.807928] RX(0x5f):
[ 2057.852851] RX(0x60):
[ 2057.897696] RX(0x61):
[ 2057.942682] RX(0x62):
[ 2057.987622] RX(0x63):
[ 2058.032405] RX(0x64):
[ 2058.077474] RX(0x65):
[ 2058.122331] RX(0x66):
[ 2058.167519] RX(0x67):
[ 2058.212437] RX(0x68):
[ 2058.257498] RX(0x69):
[ 2058.302430] RX(0x6a):
[ 2058.347488] RX(0x6b):
[ 2058.392486] RX(0x6c):
[ 2058.437402] RX(0x6d):
[ 2058.482045] RX(0x6e):
[ 2058.526952] RX(0x6f):
[ 2058.571868] RX(0x70):
[ 2058.616821] RX(0x71):
[ 2058.661631] RX(0x72):
[ 2058.706521] RX(0x73):
[ 2058.751324] RX(0x74):
[ 2058.796422] RX(0x75):
[ 2058.841265] RX(0x76):
[ 2058.886221] RX(0x77):
[ 2058.931124] RX(0x78):
[ 2058.975953] RX(0x79):
[ 2059.020777] RX(0x7a):
[ 2059.065518] RX(0x7b):
[ 2059.110741] RX(0x7c):
[ 2059.155606] RX(0x7d):
[ 2059.200700] RX(0x7e):
[ 2059.245641] RX(0x7f):
[ 2059.290574]
[ 2059.290574] Can't find suitable delayline
[ 2059.458296] Generic PHY stmmac-0:00: attached PHY driver (mii_bus:phy_addr=stmmac-0:00, irq=POLL)
[ 2059.468983] dwmac4: Master AXI performs any burst length
[ 2059.469044] rk_gmac-dwmac ffc40000.ethernet eth0: No Safety Features support found
[ 2059.469076] rk_gmac-dwmac ffc40000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
[ 2059.470545] rk_gmac-dwmac ffc40000.ethernet eth0: registered PTP clock
[ 2062.509891] rk_gmac-dwmac ffc40000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
走线问题不会导致扫描完全空白
板蓝根 发表于 2021-9-13 14:18
走线问题不会导致扫描完全空白
版主：您好，可以帮忙审核一下原理图吗？在6楼。我们现在的底板和购买的配套底板差别是将SG24719PTG更换成了自带网络变压器的RJ45，型号：HanRun HY911130C。谢谢。。
二十八亩地儿 发表于 2021-9-13 14:32
版主：您好，可以帮忙审核一下原理图吗？在6楼。我们现在的底板和购买的配套底板差别是将SG24719PTG更换 ...
版主是软件工程师，如果需要较好硬件支持，要联系一下商务指派硬件工程师协助调试
结贴:原理图没有问题，PCB布线出错，然后参考8楼（@799959745）进行阻抗等长处理，问题解决。感谢799959745和版主的支持。
我也是自己画了一块底板出现了类似的情况，我改怎么排查问题呢？
具体的现象是：cherub网线接入局域网，没有获取到IP。ping 127.0.0.1可以拼的通，结果如下：
root@firefly:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>mtu 1500
ether e2:b9:e1:63:61:14txqueuelen 1000(Ethernet)
RX packets 0bytes 0 (0.0 B)
RX errors 0dropped 0overruns 0frame 0
TX packets 27bytes 9234 (9.0 KiB)
TX errors 0dropped 0 overruns 0carrier 0collisions 0
device interrupt 60
lo: flags=73<UP,LOOPBACK,RUNNING>mtu 65536
inet 127.0.0.1netmask 255.0.0.0
looptxqueuelen 1000(Local Loopback)
RX packets 114bytes 9576 (9.3 KiB)
RX errors 0dropped 0overruns 0frame 0
TX packets 114bytes 9576 (9.3 KiB)
TX errors 0dropped 0 overruns 0carrier 0collisions 0
求助一下该我如何排查这个以太网的问题？
lozenyin 发表于 2022-3-10 14:36
具体的现象是：cherub网线接入局域网，没有获取到IP。ping 127.0.0.1可以拼的通，结果如下：
求助一 ...
最后确定了吗，是PCB走线问题吗
二十八亩地儿 发表于 2021-9-8 14:55
你的网口灯是亮的吗
lozenyin 发表于 2022-3-10 14:36
具体的现象是：cherub网线接入局域网，没有获取到IP。ping 127.0.0.1可以拼的通，结果如下：
求助一 ...
你的网口上的灯会亮吗