 | | Re: LCD Addressing - & - Expanded Mode —Mike Davis
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| | | So, this still doesn't help me figure out how to address the LCD. It has A8 and A9 connected along with a CLK from Port A. Does this mean that the LCD is NOT memory mapped? Do I first have to write to Port B then write to Port A, to clock it. This (...) (27 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | | | | Re: LCD Addressing - & - Expanded Mode —Chuck McManis
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| | | | From the driver code I recently sent out: * LCD Connections on the Handyboard * PORTB bit 0 - R/W * PORTB bit 1 - RS (Register Select, 0 = instruction) * PORTC 8 bits of Data * PORTA bit 4 - E clock (...) That is correct, the LCD is NOT memory (...) (27 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | | | | | Re: LCD Addressing - & - Expanded Mode —Mike Davis
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| | | | | Wierd: Anyway I have some kind of problem with the handyboard. All steps up to the testing of the LCD went fine. When I plugged in the LCD and turned it on, it lights up (one line) bright not dim. I tried to download the pcode_hb.s19 with config set (...) (27 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | | | | | Re: LCD Addressing - & - Expanded Mode —Mike Davis
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| | | | | I found the driver you sent earlier. Thanks. BTW, I found out that my LCD is good but I still have a problem. It appears that I cannot change my CONFIG reg. Maybe because it is an 811E2; don't know. Should be able to however. Since the program was (...) (27 years ago, 4-May-98, to lugnet.robotics.handyboard)
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| | | | | | Re: LCD Addressing —Charles Hacker EAS
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| | | | Mike, Chuck McManis may have answered your request, but in case you still want sample code I am attaching an example code that prints to the HandyBoard display. (The code forms part of the Handy Board buffalo I had developed). I had trouble getting (...) (27 years ago, 5-May-98, to lugnet.robotics.handyboard)
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