 | | HB Downloader Trouble
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| I finally got all my parts to finish my HB. I am working at the bottom of page 31 in the Assembling the Handy Board download dated April 1996. I am having great difficulty downloading my board. Here are the messages I am getting when I attempt to (...) (28 years ago, 10-Jan-97, to lugnet.robotics.handyboard)
| | | | | Re: HB Downloader Trouble
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| (...) I too have this problem. I originally thought it was the RS232 converted, but I have since replaced this part and still get the downloading error (using HBDL and DLM). I can't find any physical defects with the board (solder bridges, cold (...) (28 years ago, 13-Jan-97, to lugnet.robotics.handyboard)
| | | | | Re: HB Downloader Trouble
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| Success on the first bootstrap download and failure to write into RAM could easily be explained by a fault in the memory circuit. The memory circuit, which includes the 'hc373, the 'hc132, and the RAM chip itself, with about 27 signals going to the (...) (28 years ago, 13-Jan-97, to lugnet.robotics.handyboard)
| | | | | Re: HB Downloader Trouble
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| Well, I got my HB working. I brought it over to a friends house where he was able to program it using his machine with little trouble. So, obviously it was not the HB per se. I brought it back home, and had trouble downloading from IC 3.1b but was (...) (28 years ago, 14-Jan-97, to lugnet.robotics.handyboard)
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