 | | Re: Firmware file version? —Greg Betzel
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| | | Hello again, Does anyone know what the checksum is for downloading firm0328.lgo (the checksum to pass to the RCX begin-download call)? I've been doing some experimenting with firmware downloading. While my code comes up with 0xc278 with firm0309.lgo (...) (24 years ago, 16-Dec-00, to lugnet.robotics)
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| | | | | RE: Firmware file version? —Ralph Hempel
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| | | | | (...) Way back when, I think I remember Dave Baum posting a note to the effect that the firmware checksum calculation stops around 0xCC00, which is where the firmware variables live. The old firmware was smaller than this, but the new firmware image (...) (24 years ago, 16-Dec-00, to lugnet.robotics)
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| | | | | | | Can the cybermaster tower talk to the Scout —Niels Holme
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| | | | | | | Quick question: Can I use the control tower from the cybermaster (8482) to program the Scout? Thanks Christian (24 years ago, 16-Dec-00, to lugnet.robotics)
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| | | | | | | | | Re: Can the cybermaster tower talk to the Scout —Dean Husby
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| | | | | | | | (...) No. You need a tower from an RCX. Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (24 years ago, 16-Dec-00, to lugnet.robotics)
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| | | | | | | Re: Firmware file version? —Kekoa Proudfoot
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| | | | | | (...) I don't know what Dave Baum may or may not have said, but here is the ROM's algorithm for computing the checksum: short offset = 0 byte validstr = 0 short sum = 0 for (addr = 8000; addr < cc00; addr++) sum += byte at addr if (byte at addr == (...) (24 years ago, 16-Dec-00, to lugnet.robotics)
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| | | | | | | | Re: Firmware file version? —Kekoa Proudfoot
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| | | | | | Regarding the firmware checksumming, firmdl3 did not do that correctly, nor did it support any of the latest firmware files (0325, 0328), complaining because they were too large. I made the necessary changes to fix these problems. You can grab the (...) (24 years ago, 16-Dec-00, to lugnet.robotics)
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| | | | | RE: Firmware file version? —Greg Betzel
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| | | | (...) The new firmware is a lot larger. The last address in the old fw file is 0xBFFO, and in the new file it's 0xE160. More than a little past 0xCC0. :) I wonder what Lego does to make the download work.... Greg Betzel (24 years ago, 16-Dec-00, to lugnet.robotics)
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