Microcontroller startup files
Introduction
You can use the D programming language to program microcontrollers, for instance ARM Cortex-M3 or ARM Cortex-M4.
In order to do so, you will need several different files, including a startup file.
Startup files are usually not edited by you; they mainly contain an exception vector table and a small routine, which initializes the microcontroller before calling main().
There are 5 important kinds of files when developing for microcontrollers:
- The Makefile
- The startup file
- The linker-script
- The device drivers
- Optionally a druntime library, such as minlibd
- Your source code - of course
A few startup files have been made for you; they should be ready for use, and can be found on GitHub or on GPIO's D repository.
Currently, startup files for the following device families are available in the above repository:
- STM32F4xx
- STM32F3xx
- LPC8xx
- LPC11xx
- LPC12xx
- LPC13xx
- LPC17xx
- LPC18xx
- LPC43xx
If your device family is not on this list, feel free to file an enhancement request similar to the one for STM32F3xx. Please provide a link to the device drivers, if you can; a request with a URL to the device drivers will have higher priority over a request without a URL.
Example directory structure
linker-scripts/ stm32f429.ld stm32f429xe.ld stm32f429xg.ld stm32f429xi.ld stm32f4xx.ld Makefile src/ stm32f429_startup.d main.d stm32f4xx_hal_conf.h output/
Note: The device driver and the druntime files have not been included above; you can keep the driver files in a separate location, so you do not have to update the drivers in all your projects every time a new version of the device drivers become available from the vendor. If you want to use druntime, you can also keep this in a separate location.
