 | | Anybody know 68HC711E9??
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I have a Handy board . I want to remove the battery backup for the 32K RAM. This board have a 68HC11A1FN , i have the great idea of replace that with and put my code into the 12 K EPROM of the 68HC711E9. The question is , can be remapped that EPROM? (...) (27 years ago, 30-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Non Volatile Memory 2
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Cypress has their datasheet online. Look for cy62256 at www.cypress.com. If you just want a shortcut to backed up RAM, you might investigate Dallas Semi's smartsocket DS1213. Simply replace the socket with DS1213 and piggy back 62256 on top. You (...) (27 years ago, 30-Dec-97, to lugnet.robotics.handyboard)
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| | Pcoder22.s19
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Hi, Would like to know if the pcoder22.s19 could be relocated to other part of the memory. Current is at $C000~$FFFF. Is there an assembly file .asm for the pseudo code? Regards (27 years ago, 30-Dec-97, to lugnet.robotics.handyboard)
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| | Is there any reason a 68hc11F part wont work with dl/dlm and icc?
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Hi all, Has anyone prototypes/built a version of the handyboard, etc, that used the non-multiplexed 68hc11F chip? Can you use the dl or dlm to download and use the icc ? If so, did you encounter any issues? tnx les (27 years ago, 30-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Non Volatile Memory 2
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Should be. You can probably find the power requirements from the manufacturere of the ram chip on the internet. Or if not, call the maunafacturer up and ask them to send you specs. ---...--- ericson mar Master of Engineering Candidate Project: (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | M68HC711E9
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I have a Handy board . I want to remove the battery backup for the 32K RAM. This board have a 68HC11A1FN , i have the great idea of replace that with and put my code into the 12 K EPROM of the 68HC711E9. The question is , can be remapped that EPROM? (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | Expansion Board
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Does the expansion board exist? If not, Will it exist? ___ IAN | |__ _______ ______ ___ ______ ___ ___ | _ \| _ | ___| | | _____|\ \/ / | |_ ) | _ | |_--- |___| ____| | | |________|__| |__|____ |______|______| |____| (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | Re: random dodgy sensor readings?
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In article <34A7A55B.9E3A63BA@p...-ncs.com>, Mike Vande Weghe <vandeweg@parlance-ncs.com> writes (...) Thanks, I'm not using multiple processes, however i am using the servo routines, perhaps this has a similar effect? I will try putting in the hog (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | Re: random dodgy sensor readings?
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About 2 weeks ago Bill Bynum sent in a fix for a bug that one of his students had discovered. The student was using multiple processes to read analog values, and noticed spurious readings. The problem caused by IC making context switches after the (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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| | random dodgy sensor readings?
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Hello folks, Is it normal to get invalid 'active' signals from the analog inputs every so often? I have made a lego buggy which seeks out its way from a darkish room into another room and to a window using a light sensor mounted on a sweeping servo (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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