daftie-zami opened a new pull request, #19500:
URL: https://github.com/apache/nuttx/pull/19500
## Summary
This PR adds initial architecture and board support for the TI Hercules
RM57L843 LaunchXL2 evaluation board (Cortex-R5F).
RM57 shares the same Hercules architecture/register layout as TI's
TMS570 family, so peripheral and core behavior was cross-checked
against TMS570 documentation/register maps in multiple places
throughout this port (see references to TMS570 across
`arch/arm/src/rm57`).
Currently implemented at the chip level (`arch/arm/src/rm57`):
* Core boot / clock configuration / MPU init / VIM interrupt controller
* SCI1 serial driver (console)
* GIO driver (LEDs / GPIO)
Not yet covered: RM57's lockstep/safety features (CCM-R5, ESM fault
handling beyond basic setup, PBIST/STC self-test, etc). These will be
added in follow-up PRs.
Board support (`boards/arm/rm57/rm57l843-launchxl2`) provides an `nsh`
defconfig with console, NSH, autoleds/userleds and OSTest enabled.
help
## Testing
Host: macOS
Board: TI Hercules RM57L843 LaunchXL2
Debug probe: XDS110 (OpenOCD `ti_rm57l843.cfg` / GDB `rm57.gdb`)
```
$ ./tools/configure.sh rm57l843-launchxl2:nsh && make
```
## Build Output
```
Copy files
Select CONFIG_HOST_MACOS=y
Select CONFIG_HOST_ARM64=y
Refreshing...
CP: arch/dummy/Kconfig to
/Users/sami/Desktop/rm57-nx/nuttx/arch/dummy/dummy_kconfig
CP: boards/dummy/Kconfig to
/Users/sami/Desktop/rm57-nx/nuttx/boards/dummy/dummy_kconfig
LN: platform/board to /Users/sami/Desktop/rm57-nx/nuttx-apps/platform/dummy
LN: include/arch to arch/arm/include
LN: include/arch/board to
/Users/sami/Desktop/rm57-nx/nuttx/boards/arm/rm57/rm57l843-launchxl2/include
LN: drivers/platform to /Users/sami/Desktop/rm57-nx/nuttx/drivers/dummy
LN: include/arch/chip to
/Users/sami/Desktop/rm57-nx/nuttx/arch/arm/include/rm57
LN: arch/arm/src/chip to /Users/sami/Desktop/rm57-nx/nuttx/arch/arm/src/rm57
LN: arch/arm/src/board to
/Users/sami/Desktop/rm57-nx/nuttx/boards/arm/rm57/rm57l843-launchxl2/src
...
...
...
Memory region Used Size Region Size %age Used
flash: 343564 B 4 MB 8.19%
sram: 11080 B 512 KB 2.11%
CP: nuttx.bin
```
## OS test
<img width="731" height="389" alt="Ekran Resmi 2026-07-22 00 34 30"
src="https://github.com/user-attachments/assets/2504cc97-c197-46a6-a2ce-1d2f2595602b";
/>
idk why it says 0.0.0 ¯\\_(ツ)_/¯
<img width="4032" height="3024" alt="IMG_1367"
src="https://github.com/user-attachments/assets/c02e84b5-6cda-423b-9996-252b01dce5f8";
/>
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