Errors Adding Custom Instruction to the Nios II Processor - Errors Adding Custom Instruction to the Nios II Processor Description You might get spurious errors after adding custom instruction slave ports through the Nios II MegaWizard interface. No design impact. The error messages are benign. Resolution Save your system in SOPC Builder. Close and then relaunch SOPC Builder. Custom Fields values: ['novalue'] Troubleshooting novalue True ['Nios® II Processor'] ['FPGA Dev Tools Quartus II Software'] novalue 10.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue'] - 2021-08-25

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