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Oct 10, 2012 ... The problem is that I have a lot of signals which go from one clock domain to the second one (both directions) and TimeQuest shows setup violations. Aug 10, 2012 ... Last Updated:08/10/2012 Question: I cannot switch to the PLL clock. Answer: Set the system clock control register (SCKCR) to 1/2 or greater ... May 19, 2017 ... One of the big advantages of PLLs is their ability to generate an output clock at a different frequency from the reference input clock. For ... Mar 26, 2018 ... With a PLL the multiplication factor can be changed without making any hardware modifications. Thus, many different frequencies can be generated ... Jul 10, 2019 ... I am trying to configure the USART2 peripheral clock to a 72MHz frequency. The stm32, after reset, uses the MSI at 4MHz, which I then use the PLL to extend to ... In addition, you can specify a different input clock frequency instead of the input clock frequency specified in the ALTPLL IP core. The ALTPLL IP core ... Products Selection Guide, Design Tools, Technical Information, Quality Management, Sample and Buy, Distributors and Reps, Sample Request Zhang H, Yang H G, Wang Y, Liu F, Gao T Q. A 270-MHz to 1.5-GHz CMOS PLL clock generator with reconfigurable multi-functions for FPGA[J]. I have a question regarding the reference clock frequencies that are selectable by the Vivado RFSoC IP block for the ZCU111. Oct 20, 2017 ... .CLKFBOUT_PHASE(0.0), // Phase offset in degrees of CLKFB, (-360.000-360.000). .CLKIN1_PERIOD(83.33), // (12MHz), Input clock period in ns to ps ...