[ell-i-developers] Re: Serial Working
- From: Ivan Raul <supra.material@xxxxxxxxx>
- To: ell-i-developers@xxxxxxxxxxxxx
- Date: Wed, 29 Jan 2014 23:23:34 +0200
Dear Pekka.
For some reason this division is partially killing the system:
https://github.com/Ell-i/Runtime/blob/master/stm32/cores/arduelli/Arduino_Serial.h#L61
I removed it, and isolated it on the main.
Inspecting the assembly, AFAIU the routine is jumping to a non-thumb code
section:
80002dc: f000 f920 bl 8000520 <____aeabi_uidiv_from_thumb>
to
080000c4 <__aeabi_uidiv>:
After the division is invoked, the serial stops working.
I will try tomorrow to understand why this routine is not adequate, or if
you have some experience about the division it would be quite helpful.
Have a good night.
BR, Ivan
On Wed, Jan 29, 2014 at 9:08 PM, Ivan Raul <supra.material@xxxxxxxxx> wrote:
> Dear All.
>
> Good news!
>
> Finally the serial of the new runtime is running, with some hacks (forcing
> ellduino.cpp to reference to the USARTx_INIT) and using the default
> baudrate.
>
> For some reason the SystemCoreClock variable is not correct. Now I will
> use the working serial to debug it.
>
> I will push my changes for revision in a while
>
>
> With Warm Regards, Ivan Raul
>
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