I have been able to make it work replacing files and changing optimisation flags.I still have problems debugging but I will open another issue if necessary.Thanks for your help.Miguel

You are wright, I increased ROM size in M0+ and M4 liker files and now can download both firmware's. I still get a warning about the MAPPING_TABLE placementWARNING: There is a difference between the MAPPING_TABLE placement in memory: 0x20008000 and ...

Hi,I still have the same problem in End_Node_Dual_Core example after replacing attached files. region `ROM' overflowed by 8296 bytes LoRaWAN_End_Node_DualCore_CM0PLUSMiguel