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Type: Posts; User: Reinhard

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  1. Replies
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    Re: simulate P1 with SystemC

    Sorry, I can still report no success.
    In another thread I read the files top.tdf and tim.tdf are written in AHDL.
    This could be the reason why the verilator gets out.
    I really need a verilog...
  2. Replies
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    Re: simulate P1 with SystemC

    1; download SystemC
    With a bit of C / C ++ experience the training period is a few days.

    2; The bottleneck;-(
    download verilator
    Either the classic way:
    ./configure
    make
    make install
  3. Replies
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    Re: simulate P1 with SystemC

    Heater, just something like I have imagined.
    But until then, there is still a long, hard road.
    Right now all I can v-files individually translate
    and get the h and cpp files.
    During...
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    simulate P1 with SystemC

    For years I was looking for a larger project to go into SystemC.
    Now I have found one;-)

    Verilator is an open source software and translated
    Verilog by SystemC.
    verilator --sc * .v

    ...
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    Re: Propeller-1 FPGA Image, what the heck?

    Golden times ...
    I really mean it
  6. Re: Audio Agent Propeller Programming (was Headless Audio ...)?

    Hi Steve,
    Merci for the codesnippets, I'll study them.
    Thank god the era of the interrupts is over.
    Thinking in parallel processes is easier for me.
    I have my roots in hardware development;-) ...
  7. Re: Audio Agent Propeller Programming (was Headless Audio ...)?

    Hey Propeller and C Fans
    This is a Demo about BPSK with Propgcc.
    Works til 1923 Bit/s

    Faster is possible with delay adjusts ;-)

    cheers Reinhard
  8. Re: Audio Agent Propeller Programming (was Headless Audio ...)?

    Now I have done the modulation on Linux - PC via Soundcard.
    Hope it is not too much offtopic, but I think a replace from the soundcard - writes with output to a DAC
    and it is to use with a...
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    [solved] Re: fmax and fmin problems in Propeller C

    too late for me ;-)
    Just wanted to suggest the same solution
    btw. the problem with fmin can I see also.
  10. Re: Audio Agent Propeller Programming (was Headless Audio ...)?

    Hi, and sorry for delay.
    Now I understand the modulation.
    You precalculate a sine table by multiplication the carrier with 1 or -1.
    This is exact BPSK - Binary Phase Shift Keying.
    I always...
  11. Re: Audio Agent Propeller Programming (was Headless Audio ...)?

    SimpleApp ? ;-)
    nice target.

    Do You really implement a PSK/BPSK modulator/demodulator in pure software ?
    I can not imagine this.

    It is easy to make a ASK ( any kind of amplitude shift...
  12. Thread: micro python

    by Reinhard
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    Re: micro python

    have improved the alloca test and for my understanding the behaviour is correct.
    Otherside I think about the comment from heater (happy 10.000;-) with the replace alloca(size) -> T [size].
    In any...
  13. Thread: micro python

    by Reinhard
    Replies
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    838

    Re: micro python

    found a very old implementation, but works

    Reinhard
  14. Thread: micro python

    by Reinhard
    Replies
    12
    Views
    838

    Re: micro python

    hmm, alloca.h is missing

    The alloca() function allocates size bytes of space in the stack
    frame of the caller. This temporary space is automatically freed
    when the function that...
  15. Thread: micro python

    by Reinhard
    Replies
    12
    Views
    838

    micro python

    A few days ago, I found this:
    http://micropython.org/
    It's a python implementation running on bare arm without an OS between.
    First I checked out the micro-python-master.zip.
    With the included...
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    Re: Question about signal generation

    Before I really go ;-)
    Currently I have nether a multimeter nor an osci here.
    So I use the stereo output from my DemoBoard, connect to the soundcard of my notebook
    and write a short programm for...
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    Re: Question about signal generation

    I'll try it as soon as possible
    But my next <project> is (14 days Italy ;-)
    Reinhard
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    Re: Question about signal generation

    Hi jmg
    can you explain me the method with xor-gate and multimeter ?
    phase1 xor phase2 give a signal with double frequency.
    for example
    ...110011001100...
    ...011001100110...
    ...101010101010......
  19. Re: Has anyone a C code example for reading the BOE's ADC? (AD7993)

    Now it' s build.
    Can not test because I have not the hardware.

    cheers Reinhard
  20. Re: Has anyone a C code example for reading the BOE's ADC? (AD7993)

    Hi Alex,
    I have download adc.zip
    unfortunaly I have no Propgcc Toolchain around me yet.
    But I read the Makefile and it seems you have to build the adc_driver and i2c_driver first,
    then you can...
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    Re: Question about signal generation

    @Phil

    you are right.
    for a certain frequency I adjust the value with an osci.
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    Re: Question about fpu_cog

    So easy
    In simple;-)) words for my understand:

    If the fpucog is started, any line of code like
    res = 0.5 * 2.0
    is performed by the fpu coprocessor.

    brilliant
  23. Replies
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    Re: Question about signal generation

    @ Phil
    Thank you for the hint
    with a small C snippet I can determine this little

    /**

    * This is the main TwoPhase90Degree program file.
    * produce 2 signals with 90 Degree Phase...
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    Re: Question about fpu_cog

    Ok, it seems I have a old version from fpucog.c
    But one issue is not clear for me

    If I start a new fpucog, whence know the cog what I will do (add,sub,mul,somewhat) ?
    What is the interface for...
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    Question about fpu_cog

    Hello Forum,
    in the html - documentation for simpletools library v0.96.1 I read something about fpu_cog.
    not so in the v0.98.

    Is this functionality supported ?

    I try this, after I read the...
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