 | | 68H11 on HandyBoard?
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Trying to find all components needed to build a HandyBoard, I have a quite some troubles finding the 68HC11, which is quite vital, I'd say ;-). I now found a place where they sell a lot of IC's, but - of course - not the 68HC11. but they DO sell a (...) (27 years ago, 5-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Touch memory From Dallas...
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(...) If you're just interested in sample code, check out: ftp://ftp.cmf.nrl.na...lib.tar.gz Code to talk the Dallas One-Wire protocol is included. Also included is sample C code that implements the bus discovery protocol. It's actually pretty easy (...) (27 years ago, 5-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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(...) Here is an Interactive C file to do just that. Seems to work well in the 10 minues of testing I've just done. :) Let me know if anyone has problems with this: *Brian Schmalz /* Function to enable SPI port as digital I/O */ /* First you must (...) (27 years ago, 5-Jan-98, to lugnet.robotics.handyboard)
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| | Touch memory From Dallas...
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I have searching info about the touch memory from dallas. I need to know in which way that connect to a microcontroller and wich is the protocol used. Someone now somethingh abou that??? Thanks in advance.... (27 years ago, 3-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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Thanks David for a nice explanation of how to add I/O using shift registers. Let us not all forget that the HB does have two uncommitted digital output ASIDE from the four SPI pins: PA7 (a bidirectional pin which is marked as digital input #9) and (...) (27 years ago, 1-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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On Wed, 31 Dec 1997, Tom Brusehaver wrote: <snip> (...) </snip> yet ANOTHER idea, if you are suitably masochistic, is to use the SPI port for a much more extensible I/O system. As you know, SPI uses 4 basic control signals, MOSI, MISO, CLK and SS... (...) (27 years ago, 1-Jan-98, to lugnet.robotics.handyboard)
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| | Re: Digital outputs.
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(...) G> Wich are the options to have 3 digital outputs in the handyboard? G> No matter if i have to do little modifications to the Hardware. I G> already know how to conect the keypad if you can tell me how G> obtain 3 outputs.. :) Handyboards are (...) (27 years ago, 31-Dec-97, to lugnet.robotics.handyboard)
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| | Digital outputs.
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Wich are the options to have 3 digital outputs in the handyboard? No matter if i have to do little modifications to the Hardware. I already know how to conect the keypad if you can tell me how obtain 3 outputs.. :) (27 years ago, 31-Dec-97, to lugnet.robotics.handyboard)
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| | Re: KEYPAD Connecttions
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(...) G> Anybody know wich is the better way to connect a KEYPAD to a G> 68HC11? What kind? If you have a handy board, use the IR port, there is no wiring necessary. Use a universal remote programmed for one of the sony IR methods, and you are set. (...) (27 years ago, 31-Dec-97, to lugnet.robotics.handyboard)
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| | KEYPAD Connecttions
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Anybody know wich is the better way to connect a KEYPAD to a 68HC11? (27 years ago, 31-Dec-97, to lugnet.robotics.handyboard)
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| | 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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