-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 30.03.2014 00:41, Master Postfach wrote: > hello all, > > after evaluating SDCC for STM8 for a few weeks now, I still have > some questions. I hope they are simple, and that someone will > answer them. For your support thanks a lot in advance!!! :-) So, > here’re my questions: > > * currently I use SDCC via an ASCII editor and a console. Is ok, > but feels solo 80s… ;-) Is there any *IDE with built-in support* > or configurable for SDCC/STM8? Ideally with compiling, linking, > upload and debug (see below wish list)
Someone did some work for Code::Blocks, but I didn't try it http://www.mikrocontroller.net/topic/326808 (post in GErman, but there shuld be English instructions in the download). > > * since I’m into physical computing, debugging via simulator is not > a viable option. Is there a *debugger with GUI*, which supports > SDCC and ST-Link (from STM8 discovery board)? If required, R-Link > would also be ok AFAIK, not yet. > > * does SDCC for STM8 also support *float operations*? I try to > avoid float wherever possible, but sometimes it would come very > handy, independent of speed and memory. In the (8051) manual it > seems so, but I always get an error message when I try an operation > with float numbers float is supported. The stm8 port passes the regression tests, incuding the tests of foat operations. There is no support for double though: sdcc emits a warning for doubles and replaces them by floats. > > * how can I write *code to execute from RAM*? I need to log data > to flash, but since the flash is single-ported, the actual flash > operations have to be executed from RAM (or so I think). According to my understanding of the stm8 architecture you should be able to have both code and your data in flash (resulting in a few pipeline stalls once in a while, which slow your code down a bit; however AFAIK the RAM data bus is just 8 bits wide, so you'd get even more pipeline stalls with code in RAM). But I haven't done something like this before. > > * if *printf/sprintf supported* by SDCC/STM8? Of course each > instance could be replaced somehow, but I’d rather not sieve > through all my old projects... printf() and sprintf() are supported. > > * how do I *specify flash segments/locations for the linker*? I > need to reserve some part of the flash for data logging, but I > don’t know how to tell the linker which I don't use such functionality often, but AFAIR, the -b option (possibly with some custom area for the reserved part) should help. > > * and, last but not least, *how can I define a far pointer* to a > >64kB address (i.e. 24 or 32 bit) Far pointers are not supported yet. Philipp -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlM5IpwACgkQbtUV+xsoLpqqVACffLR2ja/gZ7O8uZjrfC0C73hU c9IAoKQtTFPWSLpSU5a+lkLN0FUJY3pX =6xTv -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user
