需要添加以下约束：
set_global_assignment -name STRATIXV_CONFIGURATION_SCHEME "AVST X8"
set_global_assignment -name GENERATE_RBF_FILE ON
set_global_assignment -name USE_CONFIGURATION_DEVICE OFF
set_global_assignment -name GENERATE_PR_RBF_FILE ON
set_global_assignment -name ENABLE_ED_CRC_CHECK ON
set_global_assignment -name MINIMUM_SEU_INTERVAL 10000
set_global_assignment -name ACTIVE_SERIAL_CLOCK AS_FREQ_115MHZ_IOSC
set_global_assignment -name CONFIGURATION_VCCIO_LEVEL 1.8V
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