All parts expect the SPLL to run at 702MHz. In U-Boot it's the SPLL_HZ declaring this rate and in the kernel it's a fixed clock definition. While everything is expecting 702MHz, the SPLL is not running that frequency when coming from the bootrom though, instead it's running at ...
When I open up mysdc.sdc, I did not get individual create_gen_clk commands in the sdc file, instead what I get is only the command "derive_pll_clocks" in the sdc. Is my step incorrect or is the QII handbook not right (the quote above)? Can some kind souls point me...
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davinci_venc davinci_venc: Desired VENC clock not available davinci_venc davinci_venc: PLL's doesnot yield required VENC clk 请问什么原因,我在dm368平台上移植dvsdk4.02.。并播放编码后的264文件,视频播放图像比较快,不是很平滑的视频图像,但感觉好像没丢帧。
型号: ISPPAC-CLK5304S-01TN48I 品牌: Lattice Semiconductor Corporation 封装: 48-TQFP (7x7) 批次: - 数据手册: - 描述: IC CLOCK GENERATOR 48TQFP 购买数量: 库存:请查询 产品信息 参数信息 用户指南 MfrLattice Semiconductor Corporation PLLYes with Bypass ...
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aS007只需要一个外置晶振是吗?这个外置晶振输入到FPGA的时钟管脚(例如:“B1_CLK1_DIFFCLK_0N”),然后,由FPGA的PLL管脚(例如:“B7_IO_PLL2_CLKOUTp”)输出到SENSOR的EXTCLK(MCLK)和USB的“USB_REFCLK”,正确吗?S007的USB和SENSOR都不需要外置晶振是吗? 正在翻译,请等待... [translate] ...
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有个学生曾经问 qsys 的第一个CLK IP 的 时钟源输入可否选择普通IO 作为输入?他想在普通IO 上接精度较高的10M晶振了。 答案是可以的。 但是他说遇到报错:Error (14566): The Fitter cannot place 1 periphery component(s) due to conflicts with existing constraints (1 fractional PLL(s)). ...
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