• PicŪ Basic


  • OnLine Ordering


    Order PDS via our online ordering system. Follow this link directly to the Proton section to order PDS


    Click HERE to order Proton Compiler and Amicus Boards

    Read about PDS, find out what it can do for you, what you'll need to use it and product licensing.






    Replacement License Key

    Have you lost your license key? If you require a replacement USB license key, you may order one online.



    • We will check that you are registered as a licensed user on our system.
    • You may be asked to provide proof of purchase. (for example, if you did not purchase direct from Crownhill)
    • We will issue ONLY 1 (one) replacement license key per user, If you loose the replacement key will will NOT issue another key.
    • If you did NOT purchase PDS, or received it as a free sample or complimentary copy, we reserve the right to decline your request.
    • Follow this link to order online.




    Exchange License Key






    If your License Key ceases to operate and its out of warranty, you may order an exchange key

  • Recent Activity

    kbaykar-24295

    Fault in bit wise comparisons on release 3.6.1.2.

    Thread Starter: kbaykar

    Hi Les, I just downloaded the release 3.6.1.2 today and seeing that it supports 18F47K40. I am trying to port my code from 18F4685 to 18F47K40. ...

    kbaykar Today, 17:26 Go to last post
    John Drew-26

    About Define directive...

    Thread Starter: SELCUK

    Hi Les, Thank you for new version of Proton Plus. For both Compiler version 3.6.1.1 and 3.6.1.2 If I define $DEFINE FF $0C ;// Form...

    John Drew Today, 02:10 Go to last post
    towlerg-21522

    Num_Byte on 18F26K42

    Thread Starter: towlerg

    I'm using a macro that was created by the generator Dump Macro P1 #if (Prm_Count > 1) #error "Dump - Too many parameters" #else ...

    towlerg Today, 17:40 Go to last post
    normnet-324

    Update path?

    Thread Starter: normnet

    I am currently running Proton v3.6.0.2 and would like to update to the latest version. Can i install the latest Update v3.6.1.2 on top of my...

    normnet Today, 14:41 Go to last post