Answering myself here: On Fr, 2016-01-08 at 23:43 +0100, Marc Santhoff wrote: > On Fr, 2016-01-08 at 23:23 +0100, Jeppe Johansen wrote: > > CMSIS is a lot of things. What exact part of it are you asking about here? > > In that file for example from line 887 on: > > http://svn.freepascal.org/cgi-bin/viewvc.cgi/trunk/rtl/embedded/arm/stm32f407xx.pp?revision=32386&view=markup > > there are lots of 'external'ly declared procedures. Where can I find > them?
Hmm, that's only a list of interrupt procedures. After the declaration there are some assembler seetings to have default values - OK, now I think I understand. It's up to the user to let them be set to default or redefine and implement the IRQ procedure. > > FPC's embedded target has a bunch of controller units that are pulled in > > depending on the -Wp argument. These define exactly what you see in the > > units in the rtl/embedded/arm directory. In most cases just the physical > > registers, the interrupt vectors(and sometimes the IRQ levels), and some > > startup code. The mapping between the files and the controller names can > > be seen in the huge table in compiler/arm/cpuinfo.pas. > > Have seen that, the wiki explains it. > > > There are no object or source files for other parts of CMSIS, so things > > like the CMSIS-DSP and all cortex-m intrinsics don't work right now. > > > > The cortexm3 and cortexm4 units that you can include in your uses clause > > will model some of the missing functionality but very far from all. > > Your older implementation of STM32F103 found on your website has > declarations and implementations of the most important parts. The "new > style" sources included in fpc/rtl haven't. Or at least I can't find > them. No, it hasn't. I have read too many source files today. So there is only the declaration stuff for accessing the internals of the SoC, timers, peripherals and the like, OK. Marc > > Floating point support is very untested. Most of it should work, but > > there might be some bugs. You can enable it by compiling your RTL and > > application with -CfFPv4_S16. If you decide to test it please write on > > the bugtracker if you run into problems. > > I think I'll have to wait a while, that not the right toy for starting > up. ;) > > Thanks a lot! > Marc > > > Best Regards, > > Jeppe > > > > On 01/08/2016 10:58 PM, Marc Santhoff wrote: > > > Hi, > > > > > > looking at the embedded source code there has been done a lot of work. > > > I'm interested in trying fpc on Cortex-M3 and M4, mostly from ST. > > > > > > While trying to get an overview of the sources I found the declarations > > > are pulled into a processor specific file by external declarations. But > > > where does it come from, does the linker pull in the cmsis object files > > > or something? > > > > > > If so, how? There has to be a pointer to those files I couldn't find > > > either. > > > > > > Second question is: > > > Does the embedded target support hard floting point on STM32F4? > > > > > > TIA, > > > Marc > > > > > > > _______________________________________________ > > fpc-pascal maillist - fpc-pascal@lists.freepascal.org > > http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal > -- Marc Santhoff <m.santh...@web.de> _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
