Nuvoton-8bit-SDCC

Nuvoton 8bit SDCC BSP

This is a work in progress. Right now the two "template" examples in the 16bit and 32bit folder compile and run.

Get Started

Windows

1. Clone the repo

2. Download SDCC. This code works with v4.2.14

3. Download NuMicro_ICP_Programming_Tool_V3.10.7443r

4. Download NuLink_Command_Tool

   • Check that the folder of NuLink_8051OT is in your path, otherwise add it. It is probably located under C:\Program Files (x86)\Nuvoton Tools\NuLink Command Tool

5. Install make (in windows: Winget install GnuWin32.make) and then add it to path (probably it's under C:\Program Files(x86)\GnuWin32\bin\make.exe)

6. Move the switches of VCOM on the NuLink-Me debugger board to the ON position

7. Flash the program. You have two options:

   • Go folder 32kb/SampleCode/Template/Project_temp/SDCC/, run buildAll.bat and loadflash.bat or
   • Open NuMicro ICP Programming tool
     • click on APROM
     • select helloworld.hex
     • Run

8. Open a serial terminal (e.g. Putty) on the COM port where the Nulink or equivalent is connected.

Unix

1. Clone the repo
2. Install sdcc with sudo apt-get install sdcc or similar.
3. Go folder 32kb/SampleCode/Template/Project_temp/SDCC/ and run ./buildAll.sh
4. Open NuMicro ICP Programming tool (No flashing tools are available on Unix so far)
   • click on APROM
   • select helloworld.hex
   • Run
5. Open a serial terminal (e.g. Putty) on the COM port where the Nulink or equivalent is connected.

The unix compilation was tested on a Ubuntu 22.04 wsl environment.

Todo

• Controlling and porting all the components
• Testing and writing the readme of the other examples
• Port and test the bootloader by Nuvoton in order to flash via UART also in Linux
• Write a CLI interface to serial port for flashing (like esptool)

Acknowledgent

• Thanks to danchouzhou/MS51BSP_SDCC who gave a solid starting point for the porting.
• Many parts of this project are strongly inspired (and sometimes copied) from the awesome esp-idf project.