Search found 26 matches
- Wed May 13, 2020 11:56 am
- Forum: Development and Feedback
- Topic: FPU is not beeing used ?
- Replies: 16
- Views: 7962
Re: FPU is not beeing used ?
Update: With GCC 9.2.1 the powf(b,n) is about three time faster as with GCC 7.2.1 (using FPU), the other calculations were not affected. Note: Using the new Kernel 6.1.1 has no influence (as expected) ------------------------------------------- Kernel: 6.1.1 Compiler: GCC 7.2.1 20170904 (release) [A...
- Fri May 08, 2020 8:23 am
- Forum: Development and Feedback
- Topic: [PROBLEM] Dead PC...
- Replies: 16
- Views: 8178
Re: [PROBLEM] Dead PC...
I heard about a bad and nasty Virus is going around: Corona?
- Thu May 07, 2020 7:30 am
- Forum: Development and Feedback
- Topic: [INFO] Changes in ChibiStudio
- Replies: 3
- Views: 2495
Re: [INFO] Changes in ChibiStudio
Just a minor Issue with "ChibiStudio_Windows_2020-04" of "2020-05-01 21:15"
The Shortcut "Chibi Studio GCC 5.4" is pointing to "start_gcc70.bat" instead of "start_gcc54.bat"
The Shortcut "Chibi Studio GCC 5.4" is pointing to "start_gcc70.bat" instead of "start_gcc54.bat"
- Tue May 05, 2020 8:20 am
- Forum: Development and Feedback
- Topic: [INFO] Changes in ChibiStudio
- Replies: 3
- Views: 2495
Re: [INFO] Changes in ChibiStudio
Cool, thank you for providing a new version of Chibistudio => "ChibiStudio_Windows_2020"
However, is it a big thing to create also a packet for Linux (I'm using Mint) but not as VM.
Best Regards Peter
However, is it a big thing to create also a packet for Linux (I'm using Mint) but not as VM.
Best Regards Peter
- Mon Feb 03, 2020 2:56 pm
- Forum: Development and Feedback
- Topic: CycloneTCP/IP Stack as External Resource
- Replies: 3
- Views: 2684
Re: CycloneTCP/IP Stack as External Resource
>> any experience to share?
Not yet. I compiled some demos, this works out of the box. But I couldn't figure out how to merge their makefile with the Chibios makfile. I guess the way would be to setup the propper binding in \os\various ? But maybe I was searching too far..
Not yet. I compiled some demos, this works out of the box. But I couldn't figure out how to merge their makefile with the Chibios makfile. I guess the way would be to setup the propper binding in \os\various ? But maybe I was searching too far..
- Mon Feb 03, 2020 11:45 am
- Forum: Development and Feedback
- Topic: CycloneTCP/IP Stack as External Resource
- Replies: 3
- Views: 2684
CycloneTCP/IP Stack as External Resource
CycloneTCP is a full featured TCP/IP Stack much comprehensive as LwIp, available also as open source. => https://www.oryx-embedded.com/products/CycloneTCP Is it possible to add CycloneTCP as External Resource or at least to add an example project with proper ChibiOS <=> CyclonTCP integration? Note: ...
- Mon Jan 06, 2020 3:11 pm
- Forum: Development and Feedback
- Topic: FPU is not beeing used ?
- Replies: 16
- Views: 7962
Re: FPU is not beeing used ?
Final conclusion: The FPU-usage is speeding up the own pow(b,n) function with factor >10 but not the calculation done by the math.lib Note: Using for all calculations float result, b; unsigned int n; Kernel: 6.0.3 Compiler: GCC 7.2.1 20170904 (release) [ARM/embedded-7-branch revision 255204] Archite...
- Mon Jan 06, 2020 1:43 pm
- Forum: Development and Feedback
- Topic: FPU is not beeing used ?
- Replies: 16
- Views: 7962
Re: FPU is not beeing used ?
The same for me, except I'm using -os instead of -o2
- Mon Jan 06, 2020 11:08 am
- Forum: Development and Feedback
- Topic: FPU is not beeing used ?
- Replies: 16
- Views: 7962
Re: FPU is not beeing used ?
Hmm... Or could there be an issue with linker flags, not telling the linker correctly which function should be pulled out of the lib for the SP-FPU?
- Mon Jan 06, 2020 10:41 am
- Forum: Development and Feedback
- Topic: FPU is not beeing used ?
- Replies: 16
- Views: 7962
Re: FPU is not beeing used ?
Just to add: There is also a 2nd source directory: (I missed it) \gcc-arm-none-eabi-7-2017-q4-major\src\newlib\newlib\libm\mathfp with "s_pow.c" and "sf_pow.c" I guess this "sf_pow.c" would be the correct one, but for me: the asm code in the list file seems not to fit t...