 | | Memory erase or reset?
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Hello, I have been loading an alternative runtime environment (not IC) onto the handy board to test it out, and I want to ensure that all of the RAM is erased before doing so. I can use the unload command in IC to delete all of the .c files, but how (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: what variety of 6811 can be used?
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Nick, Sorry, I should have posted the link but I was out of the office yesterday and could not remember where it was. Motorola has an Engineering Bulletin call "Replacing 68HC11A Series MCUs with 68HC11E Series MCUs", it can be found at: (...) -- (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | R4 Resistor
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I am almost complete with construction of my first handyboard. I used an in accurate list to order my components and have a 2.94K resistor instead of 3.83K as per the other list I have and the assembly manual. My question is; Is the resistor only (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Motor outputs
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I was wondering if anyone out there knew where to get parts for the sonar board. I have fried the two IC chips on the board, the SN28784 and TL851. Any help would be appreciated, thanks. oooo$$$...$$$oooo oo$$$...$$$o oo$$$...$$$o o$ $$ o$ o $ oo (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | HB bootstrap problem when U6 installed
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i am guessing that some of the inputs to u6 are defective, causing it to assert its outputs when it shouldn't. this could turn on the '244 input latch, driving the bus when it should not. please check that pins 1 through 6 signals are oscillating (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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