 | | Re: HB Serial line speed change
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(...) You can communicate at higher baud rates (19200 or 38400) on an 8MHz 68HC11 if you disable SCI and use software "bit-bashing" routines. I have enclosed examples of such routines in sw_baud.s11 file. Setting the BIT_TIME to 52 or 104 allows you (...) (25 years ago, 25-Jul-99, to lugnet.robotics.handyboard)
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| | Re: HB Serial line speed change
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(...) The definitive answer comes from the "pink" book, which everyone should have (especially now that you can get it on CD-rom for free by filling out the form on the Mot web site!) Which basically says "No you can't do that." But it says it in a (...) (25 years ago, 24-Jul-99, to lugnet.robotics.handyboard)
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| | Re: something is wrong with my handyboard
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Chau, sounds like either (a) your LCD screen went bad, or (b) there is a bad connection betw the LCD screen and the rest of the HB. fred In your message you said: (...) (25 years ago, 24-Jul-99, to lugnet.robotics.handyboard)
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| | Weak Motor
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I have try to run the handy board using the standard DC 9V motor purchase from one of the vendors. However , it does not seem be able to move very well though i put it to 100% of its capacity. I am now working on a project to built a remote car (...) (25 years ago, 24-Jul-99, to lugnet.robotics.handyboard)
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| | Re: HB Serial line speed change
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Here is the relevant function. Note that it only works for baud rates up to 9600. void set_baud(int rate) /* For an 8 MHz clock */ { if (rate >= 300) poke(BAUD, 0xb0 | log2(9600/rate)); } You'll need regdefines.c (for the address of BAUD) as well as (...) (25 years ago, 24-Jul-99, to lugnet.robotics.handyboard)
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| | Re: something is wrong with my handyboard
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it sounds like the pcode is going down onto the board, but you may have an open on your lcd header / connector. if you can talk to the board using ic (make it beep or such) then it's just the lcd output. check for open circuits first. (...) (25 years ago, 24-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Yet another board
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Chuck, nice dream! I would be in too. But why not design a kind of a extension board which would replace the curend extension board? It would save some money i guess. Thomas. (...) (25 years ago, 23-Jul-99, to lugnet.robotics.handyboard)
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| | Re: something is wrong with my handyboard
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Can you put the board in bootstrap mode? (...) (25 years ago, 23-Jul-99, to lugnet.robotics.handyboard)
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| | something is wrong with my handyboard
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when I turn on my handyboard, a row of black squares appears on the top line of the LCD screen. I have had friends check for shorts and I have redownloaded the pcode_hb.s19 programs on to the handyboard (as the FAQ part of the handyboard web page (...) (25 years ago, 23-Jul-99, to lugnet.robotics.handyboard)
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| | Re: IC Problem
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(...) I had to go RTFM for this one ;-) It says: 5.6 Arrays and Pointers IC supports one-dimensional arrays of characters, integers, long integers, and floating-point numbers. Pointers to data items and arrays are supported. It doesn't say that (...) (25 years ago, 23-Jul-99, to lugnet.robotics.handyboard)
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| | Re: HB Serial line speed change
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To add to Martin's question, how can you change the baud rate used by IC 3.x? It's easy enough to alter the speed of the UART by setting the BAUD register or POKEing the relevant location in the pcode interpreter. Randy Sargent's code fragments can (...) (25 years ago, 23-Jul-99, to lugnet.robotics.handyboard)
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| | HB Serial line speed change
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Hi! I'm asking this again, since I've got no definitive answer: Is it possible to change the speed of the HB serial line to 19200? I need to communicate with a device which has a fix 19200 setting! Is it possible or can I forget the HB for this (...) (25 years ago, 23-Jul-99, to lugnet.robotics.handyboard)
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| | IC Problem
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-- Hello. I hope you can help. I'm using IC 3.1 for Linux and am having a problem with structs. I had code which ran fine under gcc, but ic hates it. I've got an array of pointers to a strct, struct SOFM *ptrSOM[4] and then within the program for (...) (25 years ago, 23-Jul-99, to lugnet.robotics.handyboard)
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| | Difference between TO-220 and TO-220AB
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What's the difference between these two transistor packages. They seem to amount to a significant price difference. Any realizable performace differences between these two? ---...--- ericson mar Robotics Consultant mar@cooper.edu (212)353-4356 (...) (25 years ago, 22-Jul-99, to lugnet.robotics.handyboard)
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| | Looking for something
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Does anybody have an idea where I can lay my hands on two L298 h-bridges. I've looked at all the normal elec. supply places and can't seem to find em. I need two. Would appreciate any help or suggestions. Thanks (25 years ago, 22-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Quickcam - Sharp LCD - Help
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Ooops ... I gave the wrong URL below (paste error). Should have been as follows (URL) -- Doug (...) (25 years ago, 22-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Quickcam - Sharp LCD - Help
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(...) There isn't a whole lot of RAM and clock cycles to deal with video on the 68HC11. A more reasonable solution would be to use a wireless transmitter to send video signals to a receiver that interfaces to a TV or some other host computer with (...) (25 years ago, 22-Jul-99, to lugnet.robotics.handyboard)
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| | Quickcam - Sharp LCD - Help
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Hello All- Any one have interest in making the B&W (or Color) Quickcam work in with the handyboard? That would be DELUXE. Speaking about the Quickcam, it is possible to modify the camera so that it can feed into a TV? What part is the CCD on there? (...) (25 years ago, 21-Jul-99, to lugnet.robotics.handyboard)
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| | Rules for BEAM competition
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I did some more research (I'v got some time to spare) and came up with this site: (URL) think it's the official site. Also there is a list of other robot competitions at the site (URL) (25 years ago, 21-Jul-99, to lugnet.robotics.handyboard)
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| | Re: MIT Micromouse Rulez!
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The micromouse competition sounded interesting to me and since I had never heard of it, I did a quick search finding the rules at: (URL) questions can be addressed to otten@mit.edu Has anyone in the handyboard forum competed before? -john (25 years ago, 21-Jul-99, to lugnet.robotics.handyboard)
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