硬件工程师需要掌握哪些技能比较好,我也知道所有都掌握最好,挑重点说,精力有限,fpga和硬件设计有关系么,需要掌握么
Error (204012): Can't generate netlist output files because the file "D:/VHDL/nios/lcdcore/synthesis/submodules/lcdcore_nios2_gen2_0_cpu.v" is an OpenCore Plus time-limited file. Remove the unlicensed cores or obtain a license for those OpenCore Plus time-limited IP cores used in the design. The Intel FPGA Knowledge Database contains many articles with specific details on how to resolve this error. Visit the Knowledge Database at https://www.altera.com/support/support-resources/knowledge-base/search.html and search for this specific error message number.Error (204009): Can't generate netlist output files because the license for encrypted file "D:/VHDL/nios/lcdcore/synthesis/submodules/lcdcore_nios2_gen2_0_cpu.v" is not available我配置完qsy之后,将原理图进行编译的时候出现这两类错误,这是哪儿的原因????
我用quartus ii就能完成fpga的所有配置,那为什么还要用nios ii???两者有联系么?
自己画了一个FPGA的板子,FPGA型号为EP4CE22F17 Flash型号为M25P64(16引脚)。用Jtag口烧写jic文件总是烧录83%出现错误,哪位大神能指点一下。Jtag原理图如下所示
我用fpga的pll生成两个倍频时钟,但是两个时钟好像有倍数的关系。我第一个时钟设置成400M,第二个时钟设置成1000M就报错,设置成1200M就好了。当我第一个时钟为100M的时候,第二个时钟为1000M就可以。这是为什么???
我现在的设计存在一个跨时钟域的问题,准备用FIFO解决,但是不知道FIFO的深度该怎么设?FIFO输入频率156.25M,位宽1024,输出频率312.5M,位宽512
在使用vivado对ip使用ooc进行综合一直会报:[Timing 38-316] Clock period '20.000' specified during out-of-context synthesis of instance 'mb_system/mb_system/microblaze_0_local_memory/lmb_bram' at clock pin 'clka' is different from the actual clock period '10.000' this can lead to different synthesis results.我如何在ip生成过程给他们指定时钟频率呢?
vivado内如果我想操作fpga的配置flash,根据原理图却发现那几个管脚是配置管脚,无法绑定,有什么办法可以绑定呢?