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