Why do my Nios II system instructions get corrupted when Nios II ECC error occurs ? - Why do my Nios II system instructions get corrupted when Nios II ECC error occurs ? Description Due to a problem in the Quartus® II software version 13.1, if the Nios II processor is configured with ECC enabled, ECC errors can cause invalid instruction cache operation. The invalid instruction cache operation is the result of the ECC corrupted instruction word. Resolution This problem has been fixed beginning with the Quartus II software version 14.0. Custom Fields values: ['novalue'] Troubleshooting novalue True ['Nios® II Processor'] ['FPGA Dev Tools Quartus II Software'] 14.0 13.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']