Xilinx mmcm dynamic phase shift. I went through the 'Dynamic Phase Shift Interface' section. Description: Create a project with an MMCM, simulate the fine phase shift feature (part I), add a state machine that encapsulates the MMCM and pro-vides a well defined interface Part I: On the remaining four MMCMs dynamic phase shift works intermittently about 50% of times. The MMCME4 also supports dynamic phase shifting and fractional divides. According to the documentation 'Interpolated fine phase shift (IFPS) mode in the MMCM has linear shift behavior independent of the CLKOUT_DIVIDE value, and the phase shift resolution only depends on the VCO frequency. An explanation of the behavior of the internal DRP control This repository provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the mixed-mode clock manager (MMCM) for the Xilinx® 7 series FPGA - EECScat/MMCM_D I use vivado 2014. In Spartan-6 if you want to use phase shifting, you need to use the DCM. Hi all, I wonder if anyone knows if it is possible to create an MMCM that uses both static and dynamic phase shift? In an application, I have two clocks. Jul 11, 2019 · This repository provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the mixed-mode clock manager (MMCM) for the Xilinx® 7 series FPGA - EECScat/MMCM_D Since this was a design issue failure which can be traced to the IP designers working at Xilinx corporation, to solve my issue I require 2 sets of information:The first set of information I require is a list of the steps that are required to generate a clock phase shift as was intended by the IP designers. In later technologies (Virtex-6 and onward) the MMCM is a "Mixed Mode Clock Manager" which merges together the University of Texas at Austin Transcription of MMCM and PLL Dynamic Reconfiguration Application Note - … 1 XAPP888 ( ) August 20, 1 SummaryThis Application note provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the mixed-mode clock manager (MMCM) for the Xilinx 7 series , UltraScale , and UltraScale+ FPGAs. 4k次，点赞6次，收藏15次。 PLL/MMCM的动态重配置方法之一是在GUI界面中勾选Dynamic Phase Shift选项，该选项能对时钟相位进行动态调整。 The PLLs in the Spartan-6 do not have phase shifting capabilities. In other words, I want Revised the heading Static Phase Shift Mode (MMCM and PLL), page 41 by adding (MMCM and PLL). The phase of the first one needs to be at 0 degrees (since it is being used as a feedback clock). . The phase can be dynamically incremented or decremented. do someone know why? and what should I do May 3, 2024 · The MMCM supports the Dynamic Phase Shift functionality. This Application Note provides a reference design and explains how to change clock output frequency, phase shift, and duty cycle on the fly. MMCMs also have a fractional counter in either the feedback path or in one output path, enabling further granularity of frequency synthesis capabilities. The reference design uses a state machine to drive the DRP to MMCMs have infinite fine phase shift capability in either direction and can be used in dynamic phase shift mode. May 16, 2023 · When using fine phase shift, the initial phase step value of every PI can be independently setup. Attached PDF file shows a block diagram of interface signals of these two types of MMCMs. Hi @vivianyian0 Sorry for the late reply. 4k次，点赞6次，收藏15次。 PLL/MMCM的动态重配置方法之一是在GUI界面中勾选Dynamic Phase Shift选项，该选项能对时钟相位进行动态调整。 Learn about dynamically reconfiguring MMCM and PLL in Xilinx 7 series, UltraScale, and UltraScale+ FPGAs. 8ps；输出2-200MHz 相位固定不变。 如下为移相操作时序图。 仿真输出： 标签: FPGA MMCM 动态移相 好文要顶 关注我 收藏该文 微信分享 大千世界-地球 粉丝 - 1 关注 - 0 +加关注 May 29, 2025 · Introduction The MMCME4 is a mixed signal block designed to support frequency synthesis, clock network deskew, and jitter reduction. May 29, 2025 · The variable phase shift is controlled by the PSEN, PSINCDEC, PSCLK, and PSDONE ports as shown in the following figure. Now, I want to use the mmcm_drp instance provided in xapp878. Summary This application note provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the Xilinx® 7 series FPGAs mixed-mode clock manager (MMCM). Summary This application note provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the mixed-mode clock manager (MMCM) for the Xilinx® 7 series, UltraScaleTM, and UltraScale+TM FPGAs. Nov 20, 2023 · 3、仿真输出 描述，输入200MHz，输出1-200MHz ；每一个psen移动17. ' I'm trying to verify this statement and found that there is nonlinear time dependence Hello, I'm using a Zync part (Xilinx Series-7) and trying to use the dynamic reconfiguration of the MMCM clock module whilst keeping the fine phase shift control enabled as I need both features. in simulation everything is good. An explanation of the behavior of the internal DRP control registers is accompanied by a reference design. zip reference design to have effectively, two clock signals; input clock signal and output phase shifted clock signal (both equal in 文章浏览阅读1. The other clock needs to be variable, but needs to start at a phase offset of 90 degrees with respect to the first clock. The clock outputs can each have an individual divide, phase shift and duty cycle based on the same VCO frequency. The PSEN,PSINCDEC,PSCLK and PSDONE signals do help in changing the phase shift of output clock. The dynamic phase shift is controlled by the PS interface of the MMCME5_ADV. An explanation of the behavior of the internal DRP control registers is accompanied by a reference 文章浏览阅读1. Revised the heading MMCM Clock Divide Dynamic Change, page 44 by adding MMCM. Xilinx Summary This application note provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the Virtex®-6 FPGA mixed-mode clock manager (MMCM) through its dynamic reconfiguration port (DRP). Similarly, the phase-locked loop (PLL) can be changed through the dynamic reconfiguration port (DRP). 在 AMD FPGA 中，当 MMCM 或 PLL 原语的输出时钟属性 CLKOUT*_PHASE 非零时，通常会引入时钟相移。 2）MMCM/PLL Phase Shift Modes： 时序分析期间，可通过设置 MMCM/PLL PHASESHIFT_MODE 属性以两种不同方式对时钟相移进行建模，如下表中所述。 Nov 22, 2024 · 前言 在工作时需要对MMCM的输出时钟的相位进行移动，因此学习了如何使用Dynamic Phase Shift功能，本文主要讲述如何使用MMCM的Dynamic Phase Shift功能对输出时钟的相位进行移动。 基础介绍 参考文档：UG572-UltraScale Architecture Clocking Resources 提取 链接：通过网盘分享的文件：ug572-UltraScale Architecture -clocking Summary This application note provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the Spartan®-6 FPGA Phase Locked Loop (PLL) through its Dynamic Reconfiguration Port (DRP). Aug 20, 2019 · Provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the Xilinx 7 series, UltraScale, and UltraScale+ FPGAs mixed-mode clock manager (MMCM). An explanation of the behavior of the internal DRP control registers is accompanied by a reference 关于MMCM Dynamic Phase Shifting Xilinx的工程师们好！ 我想实现两个同频率的时钟有可调的相位差，目前采用的方案即使不做任何phase shift输出波形都有明显的相位差。 我使能了clkwiz的dynamic reconfig还有phase duty cycle config，并将clk_out1和clk_out2输出。 This repository provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the mixed-mode clock manager (MMCM) for the Xilinx® 7 series FPGA - EECScat/MMCM_D Hi, I want to be sure about the linearity of phase shift in clocking wizard IP core. The phase of the MMCM output clock (s) increments/decrements according to the interaction of PSEN, PSINCDEC, PSCLK, and PSDONE from the initial or previously performed dynamic phase shift. The 'famous' application note XAPP888 gives an example but explicitly says that fine phase shift doesn't work with it. In interpolated fine phase shift mode, a clock must always be connected to the PSCLK pin of the MMCM Hi, everybody! I'm working under virtex-7 project including MMCM with dynamic phase shift. You can cascade both the PLL and DCM if you need the frequency generation capabilities of the PLL as well as the phase shifting of the DCM. This phase shift mode affects each individual CLKOUT output. I am doing an experiment to shift the clock with different phases and I see some dis linearities on output clock. The variable phase shift is controlled by the PSEN, PSINCDEC, PSCLK, and PSDONE ports When PSEN is asserted for one PSCLK clock period, a phase shift increment/decrement is initiated. 4,Kintex 7 325T,and I want to dynamic change the clock output phase,and I assert the PSEN and PSINCDEC,after some clock periods,the mmcm assert the PSDONE,but I compare the clock_in with clock_out,the phase does not change any. An explanation of the behavior of the internal DRP control registers is accompanied by a reference design that uses a state machine to drive the DRP, which ensures the Summary This application note provides a method to dynamically change the clock output frequency, phase shift, and duty cycle of the Xilinx® 7 series FPGAs mixed-mode clock manager (MMCM). t1b6fiumoiblc1pw9qykvknk3wph6swahdmknr2xks