The Quartus II software exits with an error if you double-click a multiplier-accumulator (MAC) of a digital signal processing (DSP) block in the Technology Map Viewer for Stratix V - The Quartus II software exits with an error if you double-click a multiplier-accumulator (MAC) of a digital signal processing (DSP) block in the Technology Map Viewer for Stratix V Description In the Technology Map Viewer, if you double-click a multiplier-accumulator (MAC) of a digital signal processing (DSP) block, the Quartus II software exits with an error similar to the following: Fatal Error: Access violation at 0x00000000136D23E3 Module: quartus.exe . Custom Fields values: ['novalue'] Troubleshooting novalue True ['DSP'] ['FPGA Dev Tools Quartus II Software'] novalue 10.1 ['Stratix® V FPGAs'] ['novalue'] ['novalue'] ['novalue']