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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/52IXOMDIQNVPHVN4JIL5A6SWA46R4AAB/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "011601ca24dd$278b1880$76a14980$@com",
    "message_id_hash": "52IXOMDIQNVPHVN4JIL5A6SWA46R4AAB",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/RK4R7WVD543XILSBLHEKM5RMQQYIIBLZ/?format=api",
    "sender": {
        "address": "howard (a) howardlong.com",
        "mailman_id": "82a1d3d58c6f48898b755d208f81930e",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/82a1d3d58c6f48898b755d208f81930e/emails/?format=api"
    },
    "sender_name": "Howard Long",
    "subject": "[amsat-bb] Re: lvb tracker circuit -- xtal?",
    "date": "2009-08-24T17:05:59Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/LXQWJFLQA75JR763RCZUEDNXI5QWEQBA/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/6SBLA7JUSRWGGMOQGL5T4VNF4EEVNK43/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Stefano.\n\nYes, as others have stated, you need a 4MHz crystal for the serial port bit\nrate to be correct.\n\nPlease also use the latest .HEX file (0.9) located here:\nhttp://www.g6lvb.com/Articles/LVBTracker/LVBTrack.hex\n\nWhen programming, you should use the PICPROG.EXE v0.2 program\nhttp://www.g6lvb.com/Articles/LVBTracker/PicProg.exe with the PIC in situ on\nthe board using a hardware (not USB virtual) serial port.\n\nIf, for some reason, you choose not to use PICPROG.EXE, you can use MPLAB\ninstead with a compatible programmer. Configure->Select Device as 16F876 or\n16F876A device as appropriate, File->Import the hex file, and set\nConfigure->Configuration bits like this:\n\n\t// Default config bits...\n\t// Osc=XT, WDT off, PUT on, BOD off, LVP off, FPW on, DBG off, data\nEE prot off, CodeProt off\n\tau16Data[0x2007]=0x3F31;\n\nCheck first with a 'scope that the crystal is oscillating. If it's not,\ncheck the power on the chip. See if the reset button switches the the\noscillator off and on.\n\nAlso please check the 9 pin D type on the PCB itself is a socket, NOT a\nplug! Even if you use a gender changer, it will not change the fact that if\nyou solder a plug and not a socket to the board, the pins 1,2,3,4,5 will end\nup being 5,4,3,2,1 so your tracker will not work.\n\nThere is no echo from the LVB Tracker, emulating the exect function of a\nreal GS-232A. Hitting Enter (<CR> for us oldies) from a terminal emulator\nshould return a prompt though.\n\nRegarding the LCD, do you get a top row of slightly dark blocks? Try\nchecking the contrast adjustment.\n\n73, Howard G6LVB\n\n-----Original Message-----\nFrom: [email protected] [mailto:[email protected]] On\nBehalf Of Stefano Simonetti\nSent: 23 August 2009 10:40\nTo: [email protected]\nSubject: [amsat-bb] Re: lvb tracker circuit -- xtal?\n\nThanks to all for comments.\n\nThis evening I 'll try to re-flash PIC with the correct fuses, and try with\nthe 3,5...MHz XTAL I have, to obtain at least LCD on.\n\nThe external flashing introduces another variable, right.\n\nCiao, Stefano.\n\n\n      \n_______________________________________________\nSent via [email protected]. Opinions expressed are those of the author.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n\n\n",
    "attachments": []
}