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Type: Posts; User: Les

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  1. Re: Best choice, 18F26K22 or 16F18857 for Mat/Calc. IOC Edge trigger?

    They were great to listen to on the radio when I was a young-un. Especially "Girls Girls Girls" and "A Glass Of Champagne". :-) But they did also sing some crap. LOL. But at least they were...
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    Re: PIC16F1503 Fixed Voltage Reference

    I'm having this problem with all the new devices that Microchip are bringing out Rick.

    They are changing things in the device, for no real reason, that have been the same for many years, and...
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    Re: Who has a good eye for design?

    What type of overlay Tim?

    A text overlay of structure for documantation, or case overlay?, or PCB overlay?

    Any one of them and I'll take a look.
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    Sorry for my absence

    Sorry for my absence on the forum the past week or so, haven't been too well, and I'm now busy putting the finishing touches to a compiler update installation that has modifications to some of the...
  5. [SOLVED !] Re: HRSout code on 16F1777 has problem on 16F1779

    Now this one was a bugger to locate. :-)

    It was due to the official microchip linker files having the incorrect data in them for the start and end address' of Bank 20 in RAM, so the semi-auto PPI...
  6. Les has just uploaded Corrected PPI file for device; PIC16F1779!

    Les has just uploaded Corrected PPI file for device; PIC16F1779!

    This PPI file corrects an anomaly with RAM addresses for device PIC16F1779.

    Unzip, and place the new P16F1779.ppi file within...
  7. Thread: Chip needed

    by Les
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    Re: Chip needed

    Wow. A decatron!

    I've seen photos of decatrons, but never actually seen one in reality. I have used nixies and the displays with incandescent lamps as the digits, in the past, but never a dectron....
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    Re: Problem with Bitwise Shift Right

    Here's an update patch to correct that anomaly:

    Update patch for Proton24 to version 1.0.4.9
  9. Les has just uploaded Update patch for Proton24 to version 1.0.4.9!

    Les has just uploaded Update patch for Proton24 to version 1.0.4.9!

    A patch for the Proton24 compiler to bring it up to version 1.0.4.9

    The patch corrects the following items:

    Corrected a...
  10. Thread: Chip needed

    by Les
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    Re: Chip needed

    Why not use logic switchable N and P channel MOSFETs Charlie.

    P channel for the Cathodes (high side switching) and N channel for the Anodes (low side switching). Then you can choose the MOSFETs...
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    Re: Cread on 14 bit core

    Move away from the standard 14-bit core devices George.

    They are now, very much, out off date, and even Microchip have quite a few of them in the "legacy" list, which means they are going to drop...
  12. Les has just uploaded Update patch for Proton24 to version 1.0.4.8!

    Les has just uploaded Update patch for Proton24 to version 1.0.4.8!

    A patch for the Proton24 compiler to bring it up to version 1.0.4.8.

    The patch corrects the following item:

    Corrected a...
  13. Re: johngb has just uploaded Proton Macro Generator Source Code!

    Many Thanks John.

    It will help to keep it in circulation and users out there who want to change things, can. But only as long as they give the original author credit.

    Personally John, I find...
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    Re: H bridge driver for 12v Motor recomendations

    The simplest form is to add a, very low Ohmage, resistor at the bottom of the H-Bridge and monitor the current passing through it via an ADC channel. Current when the motor is running as it should...
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    Re: H bridge driver for 12v Motor recomendations

    Better safe than sorry Tim, and the devices are still tiny. It also means there will be very little heat from the devices and that it can drive the motor without effort and not cause over current...
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    Re: H bridge driver for 12v Motor recomendations

    Good things come in 2s Rick. LOL

    I remember, many years ago, creating a circuit and code for a motor controlling water temperature within a specially built valve. Instead of having separate...
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    Re: H bridge driver for 12v Motor recomendations

    A really nice H-Bridge that is both inexpensive and capable of high current is the BTS7960. Take a look on ebay and you'll find lots of them for only a few quid, and that's for doublers!

    I'm sure...
  18. Re: DAC 18F25K22, How to acces, and is it for analog only, or even digital?

    The DACout routine is the SPI interface to the 12-bit DAC. All DACs and ADCs use the raw binary values. To convert to Voltages, a value is required that calculates how many volts, or millivolts, per...
  19. Re: DAC 18F25K22, How to acces, and is it for analog only, or even digital?

    As Rick has said, the, so called, DAC peripheral on 8-bit devices is not worth being there, and serves very little purpose, if any! Its resolution of only 5 bits in the 21st century just shows how...
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    Interrupt Driven Software PWM

    Why not create a software PWM routine within the main PIC device. It can operate as an interrupt that has very little impact on the timing of the main program. It will also take, pretty much, the...
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    Re: Help with SHT31 and I2C

    You will probably be better off with the I2C library named "Software_I2C.inc"

    It is in the users includes folder at "C:\Users\User Name\PDS\Includes"

    Take a look at the code and you will see a...
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    Re: LMX2326 PLL prescaler control

    That is excellent Andy, and an excellent video. I remember back in the 90s, having to buy an expensive high frequency 64/1 ECL prescaler chip and using other logic chips to get it to a base of 10 for...
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    Re: 18F4580 LCD on PORTD Lower Nibble 4 Bit

    With the current release of the compiler, you can set any pins for the LCD's data lines.

    For example:

    Declare LCD_Data0_Pin PORTA.0 ' Connect PORTA.0 to the LCD’s D0 line
    Declare LCD_Data1_Pin...
  24. Thread: I2C PIC18f47K40

    by Les
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    Re: I2C PIC18f47K40

    The HBusin and HBusout commands are not supported on the 18FXXK40 or 18FXXK42 devices yet, because Microchip changed the peripherals on these devices significantly, but said nothing about it. So when...
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    [OFFER] Re: 2 x 24L01+ mini SIL modules

    I haven't got one Teo, which is why I said:



    However, doing a search on youtube for "Mustool G600" Shows them to be very good indeed and no image smudge when things move, once you've skipped...
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    [OFFER] Re: 2 x 24L01+ mini SIL modules

    The hand to eye coordination is something that takes a little practice Bob.

    When I view through the standard microscope at boards, the different hand to eye coordination comes into play, but you...
  27. Thread: Macro questions

    by Les
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    Re: Macro questions

    Sorry John. I'd forgotten about that program. It does make things a lot easier.

    That's the problem with the forum, it's too large and things get forgotten. Is there any chance of releasing the...
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    [OFFER] Re: 2 x 24L01+ mini SIL modules

    If you don't already have a microscope for soldering SMD devices George, here's one that looks, truly, excellent for the price. And it looks as though it will do the job. OK, it's not a professional...
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    [OFFER] Re: 2 x 24L01+ mini SIL modules

    If you ever need any SMD soldering done George, please don't hesitate to ask me. You send the device, or the devices, and the board and I'll do the rest. There is nothing too small that I haven't...
  30. Thread: Macro questions

    by Les
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    Re: Macro questions

    The macros never really took off, so I didn't write an article on how to use them. Maybe I'll get around to it, as they are quite simple to use, and very efficient.

    The Return_xxxxx directives are...
  31. Re: Has anybody written code for MMA8451Q accelerometer?

    In the compiler's samples folder, there is code for an MMA7260 3 axis accelerometer. It's also on the Wiki.

    The code is in:

    C:\Users\User Name\PDS\Samples\Amicus18_Board\MMA7260_Accelerometer....
  32. Re: Base biased PNP transistors running at > Pic VDD

    Sorry Tim.

    I forgot to take notice of the PNP type of transistors, and you're right, the diode will need to be reversed, so current flow will still occur. I gave up using bipolar transistors a...
  33. Re: Base biased PNP transistors running at > Pic VDD

    If you can, cut the track from the PIC pins to the base of the transistors and place a small schottky diode in between each PIC pin and each base of the transistors, with the Cathode attached to the...
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    Re: Replace Label with String

    Thanks for spotting that Simon. It was caused by a default not being reset properly within the loop that parses parameters, so it mistook the String as a ByRef as well. :-)

    This has now been...
  35. Les has just uploaded Update patch for Proton24 to version 1.0.4.7!

    Les has just uploaded Update patch for Proton24 to version 1.0.4.7!

    A patch for the Proton24 compiler to bring it up to version 1.0.4.7.
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