Re: ARM Cortex-M Microcontroller startup files

[Timo Sintonen via Digitalmars-d]

On Thursday, 30 April 2015 at 23:49:52 UTC, Jens Bauer wrote:

Most asserts on microcontrollers I've seen are just implemented 
as while(1){}
-But one could probably also trigger the debugger (BKPT), 
HardFault or RESET if necessary.
Perhaps the default could be while(1){} and then 
version(ASSERT_BKPT) could be used to add a breakpoint before 
that while(1){}. Thus --version=ASSERT_BKPT could be specified 
on the command-line.
Would it be possible to 'extend' an existing assert; eg. the 
user might want to be notified via the U(S)ART ?

In a desktop computer it is easy to return to the system. A 
flying aeroplane can not stop its engines and wait the pilot to 
reboot...

We do have the 'weak' attribute now. Just make a weak default 
handler that stops. Then the application designer can override it 
with whatever the application needs.