Errors: 'MODULAR_ADC_0_DUAL_ADC_MODE' undeclared here (not in a function) - Errors: 'MODULAR_ADC_0_DUAL_ADC_MODE' undeclared here (not in a function) Description Due to a problem with the Intel® Quartus® Prime Standard Edition Software version 21.1, when Modular ADC Core Intel® FPGA IP used in a Nios® II Gen 2 system, you might see the following errors when building the Nios® II software project: 'MODULAR_ADC_0_DUAL_ADC_MODE' undeclared here (not in a function) 'MODULAR_ADC_0_IRQ_INTERRUPT_CONTROLLER_ID' undeclared here (first use in this function) 'MODULAR_ADC_0_IRQ' undeclared here (first use in this function) 'MODULAR_ADC_0_NAME' undeclared here (not in a function) Resolution To work around this problem, the altera_modular_adc.h file located in \intelFPGA\21.1\ip\altera\altera_modular_adc\top\HAL\inc needs to be replaced with a new one. Download the driver.zip file to obtain the updated altera_modular_adc.h file. This problem is scheduled to be fixed in the Intel® Quartus® Prime Standard Edition Software version 22.1 and later versions. Custom Fields values: ['novalue'] Troubleshooting 15011230416 False ['Modular ADC core IP'] ['FPGA Dev Tools Quartus® Prime Software Standard'] 22.1 21.1 ['MAX® 10 10 FPGAs'] ['novalue'] ['novalue'] ['novalue']