5.18下编译没问题,KEIL升级到5.27后编译出现以下错误,请问这是啥原因呢?.\Output\FTU_F429.axf: Error: L6218E: Undefined symbol BN_init (referred from ec_general.o).
.\Output\FTU_F429.axf: Error: L6218E: Undefined symbol EcPointMapToMontgomery (referred from ecdsa.o).
.\Output\FTU_F429.axf: Error: L6218E: Undefined symbol BN_copy (referred from ecp_smpl.o).
.\Output\FTU_F429.axf: Error: L6218E: Undefined symbol BN_set_word (referred from ecp_smpl.o).
.\Output\FTU_F429.axf: Error: L6218E: Undefined symbol EC_POINT_copy (referred from ecp_smpl.o).
.\Output\FTU_F429.axf: Error: L6218E: Undefined symbol EC_POINT_init (referred from ecp_smpl.o).
.\Output\FTU_F429.axf: Error: L6218E: Undefined symbol ec_GFp_simple_is_at_infinity (referred from ecp_smpl.o).
.\Output\FTU_F429.axf: Error: L6218E: Undefined symbol EC_load_pt (referred from key_ex.o).