WebFeb 11, 2013 · i_clk_ref[n-1:0](10GE/25GE) i_clk_ref(100GE) The input clock i_clk_ref is the reference clock for the high-speed serial clocks. This clock must have the same frequency as specified in PHY Reference Frequency parameter with a ±100 ppm accuracy per the IEEE 802.3-2015 Ethernet Standard. WebFeb 20, 2024 · Here is an overview of the steps what psu_init.c sets for SGMII: Make sure the lane calibration is done. Put GEM in reset L0-L2 Set the pll_ref_clk to be 125 Mhz (PLL_REF_SEL*) Ref clock selection (L0_L*_REF_CLK_SEL_OFFSET) Set lane protocol to SGMII (ICM CFG) Set TX and RX bus width to be 10 (TX/RX_PORT_BUS_WIDTH)
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WebMay 26, 2024 · 1.简介 我们有个rk3568的项目,硬件刚刚拿到回板,拿到板子老规矩先编译一版软件烧录进去。 在外面测试一下以太网功能时,发现打不开,会报如下错误。console:/ # ifconfig eth0 up [ 238.934076] rk_gmac-dwmac fe010000.ethernet eth0: Could not attach ifconfig: ioctl 8914: No such deviceto PHY [ 238.934149] rk_gmac-dwmac fe010000 WebIn this answer they also put constraints on the synchronous/asynchronous aspects. In my case the external input clocks (100MHz and 12MHz) come from different oscillators, … greater lafourche port commission
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WebMar 17, 2024 · > Right now any clock errors are printed and otherwise ignored. > This has multiple disadvantages: > > 1. it prints errors for clocks that do not exist (e.g. rk3588 > … WebThere are several reference clocks available. The most important are: QEMU_CLOCK_REALTIME that is actually a wrapper for a host OS-specific function like QueryPerformanceCounter () or clock_gettime () followed by a conversion to ns units. QEMU_CLOCK_VIRTUAL runs only during the emulation. In icount mode, virtual clock … WebClock Requirements 2.7.4.4. External Time-of-Day Module for Variations with 1588 PTP Feature 2.7.4.5. SDC for Multiple E-Tile Instances 2.7.4.1. Channel Placement x 2.7.4.1.1. Guidelines and Restrictions for 24-bonded Channels Variant 2.7.4.1.2. Guidelines and Restrictions for 16-bonded Channels Variant 2.8. flint arrowhead utensils