 | | 5V of trouble —Pat Leang
| | | | i'm assembling the handyboard according to the instructions found on the HB site. When measuring the E clock signal using a voltmeter, i register 5V instead to the anticipated 2.5V. i've re-checked all the solder joints but there doesn't appear to (...) (25 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
| | | | | | | | | | Re: 5V of trouble —Fred G. Martin
| | | | | those two things together strongly suggest that your crystal isn't running. any chance you can get a scope or logic probe to verify this -- measure the E clock output of the 'hc11 (pin 5). also, check that you've properly installed a 2.2 megaohm (...) (25 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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