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Type: Posts; User: Les

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    Re: New dual core dsPIC33CH PIC

    With PIC24 and dsPIC33 devices, the instruction cycle is 2:1, whereas 8-bit devices have a 4:1 ration.

    So whatever oscillator speed a 16-bit device is capable of running at, divide that by 2 for...
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    Re: Driving SK9822 or APA102 RGB LED's

    My mistake. :-(

    I made the very foolish mistake of reading, and believing, an internet page that stated something like 19KHz. Yet even after actually reading the APA102's datasheet it does not...
  3. Re: Latest compiler updates (2018) - will upgrade any version?

    The installer updates all the standard files required by the compiler. But not all the files completely.

    It will update any compiler that has been around for the past 5 or 6 years.
  4. Re: If your're thinking of buying a PicKit3/4 for 18F27K42, don't.

    A USB device programmer was in the pipeline many, many years ago, but got pushed to one side. :-( It used a HID interface, so no drivers were required, and was easy to use. Then a few years later,...
  5. Thread: 2 port i2c

    by Les
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    Re: 2 port i2c

    With I2C, the Control address of the I2C device is paramount, and it cannot be removed. Otherwise, the slave device does not know it is being interfaced with, and will ignore all pin toggles etc......
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    Re: Driving SK9822 or APA102 RGB LED's

    Take a look at page 153 of the manual, under the declares section.

    The Shin and Shout commands are software based, but for the APA and SK devices, Shout will be too fast, because the LED chips...
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    Re: Programmable RF oscillators

    I'm waiting for my frequency meter to arrive from China, so I can do more tests on the integer code Charlie.

    I still think it is not the frequency that is incorrect, but spikes around certain...
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    Re: Display photo for Les

    Sorry Charlie. I read your message before I looked on the forum. :-)
  9. Re: If your're thinking of buying a PicKit3/4 for 18F27K42, don't.

    A 25 second delay is a nag. So he's going to sell a piece of software that talks to the PICkit2 and PICkit3, but software, and source, that does the job perfectly is available on the internet for...
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    Re: Is SPI SHout interruptible

    The good thing about "true" SPI, is that the clock speed does not have to be exactly accurate. Unless it is a bad implementation of an SPI slave. LOL. Different SPI protocols use the position of the...
  11. Re: Anybody looked at Northern Sofware programmer

    Read it a bit more George, and you'll see that it states



    Looking at the link, shows that a 9 to 12 Volt source has to be supplied, and a few extra components.

    This means that only LVP...
  12. Re: If your're thinking of buying a PicKit3/4 for 18F27K42, don't.

    The standalone PICkit applications are written in C#.

    The sources for them are available on the Microchip site. I adapted the PICkit2 app many years ago, because it did not have a command line...
  13. Les has just uploaded Proton Compilers Update 3.6.1.7 - 1.0.5.1!

    Les has just uploaded Proton Compilers Update 3.6.1.7 - 1.0.5.1!

    Proton Compilers Update 3.6.1.7 - 1.0.5.1

    **Important**
    This is an update to an existing compiler setup. So [B]do not uninst
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    Re: Driving SK9822 or APA102 RGB LED's

    As Tumbleweed has said, the SK9822 and APA102 devices are quite easy to interface with, as it is, essentially, an SPI interface.

    They are also, a lot, faster than the WS2812 devices, which are...
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    Re: 16f1503 AND PWM modules

    The HPWM commands are working on a PIC16F1503 with the latest compiler Rick.

    The program below:



    '
    ' HPWM test for device 16F1503
    '
    Device = 16F1503
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    Re: 16f1503 AND PWM modules

    I don't have a 16F1503, so I'll get a sample of one from Microchip, just to make sure the changes I make actually work.

    I'll take a look at the compiler's library code, compared to the inc file...
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    Re: Big error in last version compiler!

    Got it!!!!!

    It was the changes I had to make for those silly, quirky, 18FxxK42 devices, that have broken most of the rules of 18F devices. I made the mistake of assuming I could leave some of the...
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    Re: Programmable RF oscillators

    It could also be the floating point that the micromite uses. This will cause problems on some values.

    I have made some changes to my library code that makes it extremely fast to switch...
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    Re: Big error in last version compiler!

    Thanks for your determination Atomix. There is an anomaly somewhere in the processing from Access RAM to standard RAM, in some rare circumstances, so I am now inside the compiler to see where it is....
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    Re: Pic24 and LCD display question

    You are very welcome.

    I know the PIC24 devices look a little complex when starting out with them, but they are actually not. They are a joy to work with, and much simpler than 8-bit devices.
    ...
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    Re: Thankyou being misused!

    Without the silly button. LOL

    Thank you George. Kind words are always appreciated.
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    Re: Pic24 and LCD display question

    I've just tested the Proton24 compiler's interface to an alphanumeric LCD, and it is all working.

    However, I did notice an anomaly in your declares.

    For a 4-bit interface to an alphanumeric...
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    Re: Dim xxx as code problem on P24

    You were correct Charlie.

    There is an anomaly with Cread8 on PIC24 devices that has been there from day 1 of Proton24.

    The problem was that WREG0 was being added to WREG1, then contained in ...
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    Thankyou being misused!

    What on earth is going on with the Thankyou button on the forum. It is being pressed far too much for no reasons, and by new users.... A possible future scam ?
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    Re: Big error in last version compiler!

    That's not an error, it is the compiler removing mnemonics that are not needed, when required.

    The snippet you show, keeps the BASIC version of the Movlb mnemonic in the Asm file, but change the...
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    Re: New dual core dsPIC33CH PIC

    I'm looking into it now, but it is a very querky design.

    It has, what they call, PRAM, and the code for processor 2 sits in processor 1's code memory, then is loaded into PRAM for the second...
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    Re: RSIN timing out to quickly

    This has been corrected and a patch App.exe file will be uploaded onto the forum files section ASAP.

    It comes about when higher frequencies are used for the device, which overload the 8-bit WREG....
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    Re: Force variable into Bank 0

    The System directive was something I developed when I was first creating the compiler. It allowed me to place variables that were used for the compiler's commands in Bank0 for 14-bit core devices,...
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    Re: Dim xxx as code problem on P24

    Enjoy your break Charlie.

    The IDE holds the location of the compiler in the registry, This is because the IDE once asked where the compiler executable was, even though it never actually changed...
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    Re: SPI to MX25L4006E Flash PROM

    Be careful with the Chinese Salea clones. They don't work!

    Salea changed their PC app and the firmware inside the Chinese clones is not recognised. I know, because I bought one, and it's been in...
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    Re: 12F617 will not compile

    You're welcome.

    This happened because I created some new PPI files from recent Microchip inc files, and they have changed so many SFR and bit and fuse names for no reason.
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    Re: Programmable RF oscillators

    They've changed the terminology on this chip, and the CE pin is actually the chip power up/down pin. When it is normally associated with the SPI interface enable.

    It was left unconnected on the...
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    Re: Programmable RF oscillators

    You are very welcome Charlie.

    John. I placed the delays in the SPI routine, just to be on the safe side with timing. Apparently, according to the datasheet, it can handle a 20MHz SPI interface,...
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    Proton and Proton24 ADF4351 Synthesiser Interface Library

    A library for the ADF4351 board is available here:

    Proton and Proton24 ADF4351 Synthesiser Interface Library

    I've been looking at the chip, and maybe pin 20 could be used for FM modulation....
  35. Les has just uploaded Proton and Proton24 ADF4351 Synthesiser Interface Library!

    Les has just uploaded Proton and Proton24 ADF4351 Synthesiser Interface Library!

    This is a library to interface with an ADF4351 synthesiser board. The ADF4351 chip is capable of transmitting...
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