HiFive1 BSP current state

[Gedare Bloom]

On Mon, Jul 17, 2017 at 1:16 PM, Denis Obrezkov <denisobrezkov at gmail.com> wrote:
> 2017-07-17 19:03 GMT+02:00 Joel Sherrill <joel.sherrill at gmail.com>:
>>
>> Take some of the ideas from low ticker and apply them to hello world. Use
>> printk for one and unified workspace as a starter. You can switch to the
>> simple scheduler and save a few K
>>
>> There is also a configure option about the init task being the idle
>> thread. Try that last.
>>
>> What's your default stack size?
>>
>> On Jul 17, 2017 5:59 PM, "Gedare Bloom" <gedare at rtems.org> wrote:
>>>
>>> See if you can produce a further stripped down version of hello world,
>>> although I'm not sure there is much else that can be removed...
>>>
>>> Maybe some more tweaking needs to be done to the CPU specific feature
>>> macros in cpukit/score/cpu/riscv/rtems/score/cpu.h and similar?
>>>
>>> What does riscv-rtems4.12-size report about your executable?
>>>
>>> Gedare
>>>
>>> On Mon, Jul 17, 2017 at 11:31 AM, Denis Obrezkov
>>> <denisobrezkov at gmail.com> wrote:
>>> > I have some bad and good news.
>>> > First of all, I was able to receive a message from hello example:
>>> > Fatal Error 0.2 Halted
>>> > So, uart now works (transmitting), but hello application complains that
>>> > there is not
>>> > enough workspace.
>>> >
>>> > Low ticker example, doesn't work neither, and hangs during clock
>>> > initialization
>>> > routine.
>>> >
>>> > --
>>> > Regards, Denis Obrezkov
>>> >
>>> > _______________________________________________
>>> > devel mailing list
>>> > devel at rtems.org
>>> > http://lists.rtems.org/mailman/listinfo/devel
>>> _______________________________________________
>>> devel mailing list
>>> devel at rtems.org
>>> http://lists.rtems.org/mailman/listinfo/devel
>
>
> Yes, I copied some options from low ticker example, and now Hello World
> outputs:
> Hello World, oh almost forgot, from RISC-V port ;)

May be worth adding this as a variant of hello in examples-v2.

>                                                    Fatal Error 5.0 Halted
>
> The last error occurs exiting:
> 0x20402396 in _Terminate (the_source=RTEMS_FATAL_SOURCE_EXIT, the_error=0)
> at
> /home/reprofy/Projects/riscv/rtems/development/rtems/kernel/rtems-riscv/c/src/../../cpukit/score/src/interr.c:44
> 44        _CPU_Fatal_halt( the_source, the_error );
> (gdb) i s
> #0  0x20402396 in _Terminate (the_source=RTEMS_FATAL_SOURCE_EXIT,
> the_error=0)
>     at
> /home/reprofy/Projects/riscv/rtems/development/rtems/kernel/rtems-riscv/c/src/../../cpukit/score/src/interr.c:44
> #1  0x20419198 in rtems_shutdown_executive (result=0) at
> /home/reprofy/Projects/riscv/rtems/development/rtems/kernel/rtems-riscv/c/src/../../cpukit/sapi/src/exshutdown.c:21
> #2  0x20412828 in _exit (status=0) at
> /home/reprofy/Projects/riscv/rtems/development/rtems/kernel/rtems-riscv/c/src/../../cpukit/libcsupport/src/newlibc_exit.c:42
> #3  0x20411b1c in exit (code=0) at
> ../../../../../gcc-7.1.0/newlib/libc/stdlib/exit.c:69
> #4  0x204003c2 in Init (ignored=2147486792) at
> /home/reprofy/Projects/riscv/rtems/development/rtems/kernel/rtems-riscv/c/src/../../testsuites/samples/hello/init.c:36
> #5  0x20407128 in _Thread_Entry_adaptor_numeric (executing=0x80001588)
>     at
> /home/reprofy/Projects/riscv/rtems/development/rtems/kernel/rtems-riscv/c/src/../../cpukit/score/src/threadentryadaptornumeric.c:25
> #6  0x20410056 in _Thread_Handler () at
> /home/reprofy/Projects/riscv/rtems/development/rtems/kernel/rtems-riscv/c/src/../../cpukit/score/src/threadhandler.c:73
> #7  0x2040fff4 in _User_extensions_Thread_exitted (executing=0x80001588) at
> ../../cpukit/../../../hifive1/lib/include/rtems/score/userextimpl.h:298
>
> And it seems that it's ok.
>
> I had to use printk version - I haven't implemented general console
> initialization.
>
> Now, I want to implement console initialization and make the external 16 MHz
> oscillator be
> default, because it's more precise and stable (it is easier to calculate the
> baudrate divider value).
>
> --
> Regards, Denis Obrezkov