What is the recommended minimum EDCRC clock divisor value for Cyclone V devices? - What is the recommended minimum EDCRC clock divisor value for Cyclone V devices? Description The EDCRC circuitry Fmax for Cyclone® V devices is different according to the density. Hence the appropriate minimum clock divisor value needs to be set to compensate for this difference. EDCRC might fail if the divisor value used is lower than the minimum value. Affected devices: Cyclone V FPGA Device Variant Member Code Minimum Clock Divisor Non-SoC A5, C4, C5, D5 2 SoC A2, A4, C2, C4 2 Non-SoC C3 4 Non-SoC A2, A4 2 SoC and Non-Soc Others 1 Resolution For Quartus® Prime software versions 16.0.2 and earlier : Choose the correct minimum clock divisor to ensure that the EDCRC works correctly. There will be no impact for devices that have been deployed to field if the EDCRC is passing. For Quartus Prime versions later than 16.0.2 : The Quartus Prime software will automatically detect an invalid divisor value, change it to a valid value and provide a warning message to the user. For example if using a 5CEF A2 F31C7N and 1 is chosen as the minimum clock divisor value, the following warning message will appear during compilation: "Real-time CRC ERROR_CHECK_FREQUENCY_DIVISOR VALUE(2) in design does not match value (1) in the Quartus Prime Settings File" Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue'] - 2021-08-25

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