[GitHub] [incubator-nuttx] TA1DB commented on issue #1844: BEST SUPPORTED BOARD + NUTTX VERSION

[GitBox <gi...@apache.org>]

TA1DB commented on issue #1844:
URL: https://github.com/apache/incubator-nuttx/issues/1844#issuecomment-695212447


   @btashton 
   Thank you very much for your kind and helpful response.
   
   I am aware that you are working hard to develop the documentation; this is very good. I also follow your work on the "featherwing" (https://www.linkedin.com/feed/update/urn:li:activity:6712105195817447424).
   
   I would appreciate if you resolve the issues about the stm32f746g-discovery board because it is a very advanced board; In addition to LCD capacitive touch screen and network connection there are many other hardware interfaces (sdcard, microphones, audio output, camera interface, etc.) in addition to microprocessor's own advanced capabilities. I think this board is a very good platform for Nuttx developments and therefore should be well supported.
   
   I had no startup problems with stm32f429i-disco. All configurations including lvgldemo compiled, loaded and worked without any problems. However, when I tried to write my own application using Nuttx as a library with "make export" in version 9.1.0, I encountered errors during compiling. When I went back to version 9.0.0, this time I could pass the compilation phase but got the following errors in the link phase _(tried on both  Ubuntu 16.04 and macOS High Sierra installations, same results!)_ :
   
   `apple-MacBook-Pro:nuttx-export-0.0.0 murat$ arm-none-eabi-gcc -c -fno-builtin -Wall -Wstrict-prototypes -Wshadow -Wundef -g -mcpu=cortex-m4 -mthumb -mfloat-abi=soft -I. -isystem ./include -pipe -I "./include" -I "./arch/chip" hello.c -o hello.o
   apple-MacBook-Pro:nuttx-export-0.0.0 murat$ arm-none-eabi-ld --entry=__start -nostartfiles -nodefaultlibs -T./scripts/ld.script -L./libs hello.o -o nuttx.elf --start-group -lc -larch -lbinfmt -lboard -lboards -ldrivers -lfs -lmm -lsched -lxx "/usr/lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp/libgcc.a" --end-group
   arm-none-eabi-ld: cannot find -lc
   arm-none-eabi-ld: cannot find -larch
   arm-none-eabi-ld: cannot find -lbinfmt
   arm-none-eabi-ld: cannot find -lboard
   arm-none-eabi-ld: cannot find -lboards
   arm-none-eabi-ld: cannot find -ldrivers
   arm-none-eabi-ld: cannot find -lfs
   arm-none-eabi-ld: cannot find -lmm
   arm-none-eabi-ld: cannot find -lsched
   arm-none-eabi-ld: cannot find -lxx
   arm-none-eabi-ld: cannot find /usr/lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp/libgcc.a: No such file or directory` 
   
   I have to overcome this problem because what I really want to do is to be able to write my own applications. 
   
   On the other hand I got my answer to my question and therefore I am closing the issue. Thanks again.
   


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