You can set compilation flags using the C/C++ settings in the Vitis FSBL project, as shown in the following figure:
Note: There is no need
to change any of the FSBL source files or header files to include these
flags.
Figure 1. FSBL Debug Flags
The following table lists the FSBL compilation flags.
| Flag | Description |
|---|---|
| FSBL_DEBUG | Prints basic information and error prints, if any. |
| FSBL_DEBUG_INFO | Enables debug information in addition to the basic information. |
| FSBL_DEBUG_DETAILED | Prints information with all data exchanged. |
| FSBL_NAND_EXCLUDE | Excludes NAND support code. |
| FSBL_QSPI_EXCLUDE | Excludes QSPI support code. |
| FSBL_SD_EXCLUDE | Excludes SD support code. |
| SBL_SECURE_EXCLUDE | Excludes authentication code and encryption code but not checksum code. |
| FSBL_BS_EXCLUDE | Excludes bitstream code. |
| FSBL_WDT_EXCLUDE | Excludes WDT support code. |
| FSBL_USB_EXCLUDE | Excludes USB code. This is set to 1 by default. Set this value to 0 to enable USB boot mode. |
| FSBL_FORCE_ENC_EXCLUDE_VAL | Excludes forcing encryption of all partitions
when ENC_ONLY fuse is programmed. By default, this is set to 0. FSBL forces to enable encryption for all the partitions when ENC_ONLY is programmed. |
See I’m unable to build FSBL due to size issues, how can I reduce its footprint section in FSBL wiki page for more information.
Enabling Debug Prints
See FSBL wiki page for more information on debugging FSBL.