FBL 1. Go to Build/ECU8_X_BASE_Z20K148M.gpj, double click this file and compile the whole FBL project. 2. Use Jlink to download FBL elf(Build/Bin/debug/FBL_HH.elf) file into ECU target. 3. Open Flash Tool: Tool/CanoeFBLFlash/FBLFlash_v11.cfg. 4. Run Python Script Tool/CRC_Calculate.py to get CRC32 value of APP/Flash Driver/Coding data. 5. Add Tool/CanoeFBLFlash/s19 file to Flash tool which opened in step3,also add CRC32 value to Flash tool which calculated on step4. 6. Then Start Flash.