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    Re: which W register is save to use

    Thanks,

    exactly what I was looking for

    regards,
    Harm
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    which W register is save to use

    Hi All,

    I need a very short variable delay. DelayUs won't work.
    So I looked at DelayCS. The problem however is that it only takes literals, not variables.
    Looking at the .lst I see that DelayCS...
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    Re: Web site advertising

    Thanks Stephen, this did the trick
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    Re: Web site advertising

    Today I got a message about disabling ad-blockers, so I did.
    No difference at all, also not after closing and re-opening/
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    Re: pic16f689 tx problem

    I've just thrown all of my 16F689s away. There is something horribly wrong with the I/O ports. Even simple tests, like lighting up LEDs fail on a number of portpins.
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    Re: pic16f689 tx problem

    Yes, I would have thought that too, but it just does not work.
    It looks like the device just does not support INTOSCIO.
    For this project 4 MHz is of no consequence, as long as the UART does it work...
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    Re: pic16f689 tx problem

    I used the Fuse Configurator without checking.
    The FC does no identify INTOSC/IO, only INTRC/IO but the description is the one used for INTOSC/IO in the datasheet.
    The values in the .lst indicate...
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    pic16f689 tx problem

    I want to use the UART for testing purposes on my 16F689 application.
    Compiler 3.7.0.5


    Declare Hserial_Baud = 2400
    Declare Hserial_RCSTA = %10010000 ' Enable serial port and continuous...
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    Re: random number in Edata

    The recent versions of the 8 bit compiler support procedures, just read the manual.
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    Re: random number in Edata

    Some time ago Les came up with a pretty random random generator.
    Take a look in <user>\PDS\Samples24\Real Random.
    I know this example is for the 16-bit range, but I suppose it can be modified for...
  11. Re: 300 new BNF files (names only - no comments)

    I think you have done a great job.
    Just sorry to see you don't include the explanation of the bits. IMHO knowing the names is good, but it the meaning is missing you'll have to look it up in the...
  12. Thread: cdata table

    by hadv215
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    Re: cdata table

    Hi David,

    I've downloaded the datasheet and I mus say, it looks impressive.

    I don't know if you folowed the thread on the MCP41xxx digipot, so I will explain it here.

    The idea is to build a...
  13. Thread: cdata table

    by hadv215
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    Re: cdata table

    Hi David,
    yes, 360 is a bit much, but it is essentially what I consider optimal.
    I have now an increment of 2, yielding 6kHz. That's more like it considering the code will have to do more than just...
  14. Thread: cdata table

    by hadv215
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    Re: cdata table

    You guessed right. I found out that HBUS would never be fast enough.
    And I'm back at where I started from: an 8 bit R/2R network. It will be buffered (MCP6001) and, probably, be filtered too.

    I...
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    Re: 18F26J50 and 18F26K53 as Hosts?

    They can of course function as a HID

    But why do you want to use a keyboard as a HOST?

    Regards, Harm
  16. Thread: cdata table

    by hadv215
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    cdata table

    ignore this post I've found an error in the table (256)

    I have a cdata table in my program. It has 360 entries (indeed, full circle).
    I preceded it with an Org statement just to be sure

    Now...
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    maximum hbusout speed

    When I read the manual I see there are two speeds, 100 kHz and 400 kHz.
    I have a MCP4725 DAC that supports both, but also 3.4 Mbps.
    Since I want to produce sine wave output of up to 10 kHz the...
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    Re: mcp41*** Microchip Digital Pot

    That's fine John, I'm not in a hurry
    Harm
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    Re: mcp41*** Microchip Digital Pot

    Hello John,
    I do have a copy of the 2018 issue, If you could be so kind to make a photograph (or scan) of the other two I would like that very much.

    Regards
    Harm
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    Re: mcp41*** Microchip Digital Pot

    Yes John. I know about one of them (march 2009). This one was also in Everyday Popular Electronics (the republish every silicon chips project).
    I tried to build it but failed. I think this was...
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    Re: mcp41*** Microchip Digital Pot

    Anything looks easy if performed by someone experienced...
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    Re: mcp41*** Microchip Digital Pot

    Well, if there's one thing that I do not associate with a theremin-thingy it is accuracy.
    It is renowned for its gliding tone. Just listen to good vibrations by the Beach Boys. Do some surfing on...
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    Re: mcp41*** Microchip Digital Pot

    No, I never read that article. Nice to see it though. Basically the underlying principle is the same.
    Thanks
    Harm
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    Re: mcp41*** Microchip Digital Pot

    I don't think otherwise (though the HCSR04 goes up to 4m = 13 feet but my arms are not that long).

    I have developed the circuit. It contains a 16F88, 16F689 (both selected for no other reason than...
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    Re: mcp41*** Microchip Digital Pot

    Dropped the APDS for the moment (pretty complex and I get the impression that the distance is too short) and picked up a HC-SR04 sensor. This works easy up to 60 cm (and more, but that would be not...
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    Re: mcp41*** Microchip Digital Pot

    Your remark about gesture sensing made me search for them.
    I found the ADPS-9960 and ordered 2 of them.
    Will start experimenting as soon as they are here & will keep you informed.

    Regards
    Harm
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    Re: mcp41*** Microchip Digital Pot

    The biggest problem for a theremin is, as far as I can see, the sensitivity of the antennas.
    I've been experimenting with cap sense in Pic devices, but I don't think they are sensitive enough....
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    Re: mcp41*** Microchip Digital Pot

    No, I have only seen analogue versions. But I would not be surprised if someone came up with something.
    After all, you only need 2 ADC's and some oscillating software.
    By the way, the author of the...
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    Re: mcp41*** Microchip Digital Pot

    Actually the digipot will be used as a source for a control voltage for a monophonic synth.
    The idea is based on an aritcle I read in Nuts and Volts, the author uses a R/2R DAC but I am not happy...
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    Re: mcp41*** Microchip Digital Pot

    Ok, I found out it's working fine now.
    I am ashamed to admit it, but I exchanged two lines.

    Thanks for the help
    Harm
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    Re: mcp41*** Microchip Digital Pot

    using a dmm and a scope resulted in the same readings.
    adding short delays did not improve a thing

    I think I go back to my X9Cxxx, even though it has only 100 steps
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    Re: mcp41*** Microchip Digital Pot

    I'm fully aware this is a somewhat dated thread, but I do need some help.
    I tried the samples example Les supplies
    I also tried the snippet Lubo suppplied
    I modified some arduino code from the net...
  33. Can't find my mail address and I can not change it

    Hi
    I tried to find my email address but I can not find it anywhere
    I want to change it since I have changed my ISP.

    I know my old email address is somewhere there because the asm header after...
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    Re: Use of the Proton 3.7.0.3 version

    Well I sent them an email but they don't respond. Help?

    regards, harm
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    Re: Advertisement on the forum

    it's the amazon search that is inserted after every first post in a thread, e.g. the forum
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