How to write a firmware which can run on multiple hardware

[dani]

Hello respected ones,

I have developed a firmware based on a RTOS for ARM7. Now i want to make it a baseline firmware which can be used with similar, more or less features (configurable) on different microcontrollers, like MSP, or AVR etc.

Precisely what would we name this phonemona. If there are any articles, techniques or related stuff available then please share.

Best Regards
Dani.....

 

[future]

Re: How to write a firmware which can run on multiple hardwa

Hi,

The compiled binary will not run on different controller, but you can have configurable source code. Use #define, #ifdef/#endif (if you are using C)... to configure which section will or not be compiled.

 

[amraldo]

Re: How to write a firmware which can run on multiple hardwa

Build your firmware in 2 layers:
Upper layer abstract from hardware and lower layer dependent on hardware.
This part should be configurable during configuration.
The book embedded systems building blocks is a good guide for doing that.
--
Amr Ali

 

[dani]

Re: How to write a firmware which can run on multiple hardwa

Thanks amraldo and future,

Being more specific, if i want to change different features of firmware for one hardware and others for the second. What technique should i adopt and is there any study material available.

My existing firmware consist of four layers, 1 Application, 2 Service, 3 Wrapper and 4 driver layer.
For abstraction of driver layer i have wrapper layer. but for service layer and application layer which consist of the actual logic of the system there is no abstraction. Application layer consist of RTOS and HMI mainly.

 

[amraldo]

Re: How to write a firmware which can run on multiple hardwa

Basicly you will change driver layer any other thing should be the intact.
--
Amr