Friday, 6 of January of 2006

Your Palm turned into a scientific calculator HP

The scientific calculators of Hewlett-Packard are a great ally for when we must beat to us with a little complex calculations. But since we have a Palm, he would not be better to take an apparatus instead of two? Then it is possible, since an emulator of scientific calculators HP exists 48SX, 48GX and 49G (49G in particular, is mainly used in my university, and with her I have seen make authentic wonders).


This one is the HP 49G

Power48 is the emulator that allows us to have anyone of these outposts calculators in the Palm. One is free and gratuitous software, based on a previous project called Emu48, that ran under Windows and PocketPC. In order to be able to execute it, we needed a Palm hi-res, with operating system PalmOS 5, screen of color of 16 bits, processor ARM and 16Mb of internal memory.


He is preferable to have a screen of 320×480 pixels

    In order to be able to use this program, as always in these cases we will need the emulator and the ROMs these calculators. By reasons for copyright they are not included already with the same program, but HP has been so amiable to allow to have us the ROMs whenever we are possessors of the original calculator, and is for aims without profit spirit. Therefore the installation does not have any problem:

    • The first step is to lower the emulator and to decompress it in a directory of our hard disk. For example in “C:\Power48 ″.
    • We unload the ROM of the calculator that we want to emulate. They are available freely in the page of HPCalc, and I have picked up the connections to simplify its search:

      There is much information referring to the calculators and its emulators in this, this and this page.

    • We decompress the ROMS in the directory where we had put the Power48 (in our case “C:\Power48 ″). Now we abrimos a window of commandos of Windows (“Menu inicio->Accesorios->Símbolo of the system”) and do the following thing:
      • We enter that directory. For example “CD C:\Power48 ″ if it is there where we have decompressed it everything.
      • We turn the ROMS that we have decompressed here, to a format that understands the Power48. For it we used the utility p48rc that accompanies the emulator. The syntax is “p48rc file-origin destiny”. Destiny can be “CARD” (it is necessary in capital letters) if we thought to keep the ROMS in our card SD (recommendable), or “INTERNAL”, if they are going to keep in the main memory of the Palm. For example, to turn the three ROMs, and to copy them to card SD soon, would take control of the following orders:

        p48rc.exe sxrom-j CARD
        p48rc.exe gxrom-r CARD
        p48rc.exe rom.49g CARD

      • In that directory three archives finished in .p48rom will appear. They are those that interest to us. We copied them with some method of already commented, in the directory of card SD \ PALM \ programs \ Power48. Also they can be transferred during hotsync to the card, if we have before executed the Power48 in the Palm.
      • Finally we installed the Power48 since we would do with any other program.

    He is already ready to be used. Fast advice: in case of to have copied the ROMs in internal memory and card SD, has preference first, so better to copy them in a single place to avoid ambiguities. In order to change the calculator model to emulate, it is only necessary to make APT in the logo of HP. In the http://www.hpcalc.org/ page infinite information can be found about these calculators, like for example the manual. And in the one of the Power48 it is explained how to use the emulator.

    Now your PDA serves also like graphical calculator of high range.

    Published: so that 49G in a T can be emulated|X, is necessary to install this program.

    Published: it seems to have a version optimized for the TX. This one is the direct unloading. Thanks Jaime.


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