Can't place all RAM cells in design

最新推荐文章于 2023-07-22 15:44:35 发布

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最新推荐文章于 2023-07-22 15:44:35 发布 · 1.1w 阅读

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在使用Qsys构建Nios CPU时遇到Quartus编译错误(170040)，提示无法在设计中放置所有RAM单元。问题源于配置的On-chip Memory大小为40960 bytes，超出了FPGA的容量。将内存大小调整回4096 bytes，更新BDF文件后，编译成功。

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在熟悉新环境的qsys，建完nios cpu后，在quartus下编译时报错：

Error (170040): Can't place all RAM cells in design

Info (170034): Selected device has 30 memory locations of type M9K. The current design requires 50 memory locations of type M9K to successfully fit.
Info (170033): Memory usage required for the design in the current device: 167% M9K memory block locations required
Info (170190): Fitter placement preparation operations ending: elapsed time is 00:00:01
Info (11888): Total time spent on timing analysis during the Fitter is 0.03 seconds.
Error (171000): Can't fit design in device
Info (144001): Generated suppressed messages file E:/working/Beijing/trials/qsys_led/output_files/hello_led.fit.smsg
Error: Quartus II 64-Bit Fitter was unsuccessful. 2 errors, 8 warning