 | | 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 (...) (27 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: (...) (27 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 (...) (27 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 (...) (27 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. (...) (27 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. (...) (27 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? (...) (27 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 (...) (27 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 (...) (27 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 (...) (27 years ago, 23-Jul-99, to lugnet.robotics.handyboard)
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