hwmaier / idautool

Tool to extract and set IDAU boundary registers for Renesas RA TrustZone MCUs

idautool

Tool to extract and set IDAU boundary registers for Renesas RA TrustZone MCUs

Prerequsites

Renesas Flash Programmer v3 must be installed as it provides the rfp-cli tool. Currently only Windows is supported.

How it works

The idautool parses a compiled ELF file and extracts from the symbol table the location of the IDAU partitions and calculates the size of each partition. Then it composes a command line with arguments for the rfp-cli tool which is utilised to set the partition boundary registers of the Renesas RA MCU.

The default programmer is J-link, but e2 and e2 Lite can be used as well (--tool command line option).

The tool checks first current setting and only re-programs when the new settings are different. This avoids repetitive flashing of identical settings during debug sessions.

Usage

python idautool.py --help

Set IDAU boundary registers for Renesas RA TrustZone MCUs
Usage: idautool.py ELFFILE

Options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit
  -v, --verbose         verbose mode
  -t TOOL, --tool=TOOL  programming tool (jlink, e2 or e2l)
  -d, --dryrun          dry run, don't change anything, print command line only

Sample run:

python idautool.py hello_world.elf

Set IDAU boundary registers for Renesas RA TrustZone MCUs
IDAU boundary registers are different, re-programming...

        Code Flash Secure    3 KB
        Code Flash NSC      29 KB
        Data Flash Secure    0 KB
        SRAM Secure          3 KB
        SRAM NSC             5 KB