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Hi Henrik,
Now, since you have the LCD, why not make the messages appear on it instead of the PC-screen? You can still receive the "commands" thru the PC, to begin with.
That would be brilliant, I'm ready when you are!
I've uploaded the PDF for the LCD.
Quick point, on my PICkit1, I'm using two 22k resistors on the DB9 data cable (pin2&3) do I still use these for the LCD?
Dave
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Hey Dave,
I will but back in....
Check out the LCD section of the manual and compare to the LCD data sheet for the pin outs. Make needed adjustments and....
Dave
Always wear safety glasses while programming.
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I'm not sure how much of the display I need to connect up?Make needed adjustments and....
How does this look / sound:
PIN1 - VSS - GND
PIN2 - VDD - +5V
PIN3 - V0 - 20k pot (contrast)
PIN4 - RegSel - PORTA.4? with 10k pull res.
PIN5 - ReadWrite - GND
PIN6 - PORTB.3?
PIN11 - D4 - I/O - Data LSB - PORTA.0?
PIN12 - D5 - I/O - Data - PORTA.1?
PIN13 - D6 - I/O - Data - PORTA.2?
PIN14 - D7 - I/O - Data MSB - PORTA.3?
The manual qoutes for a PIC16F84 I'm using a 16F684, don't forget, hence the question marks.
I'm thinking it still applies the same though.
Dave
Last edited by LEDave; - 18th April 2010 at 23:32.
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Hi Dave,
That looks OK to me. Don't forget that if your pin assignment differs from the "standard" shown in the manual (I haven't checked but I think yours is different) you need to DEFINE that as shown in the manual. Simply copy the complete DEFINE-block to your code and change it to match your setup.
/Henrik.
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Hi Henrik
I've bought a breadboard today and have decided to make the project on it.
So starting from scratch really.
Yes the code does need adjusting to match the manual (probably the best way around at this stage) so lots to do and think about.
If this LCD ever fires up and works it'll be a minor, no major miracle!
Dave
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Not having a very good night here. I've been working realy hard with zero results so far.
I've attached wires 1-6 on to the LCD - power supply - and PIC (the PIC hasn't been DEFINED yet) but the LCD display hasn't shown any sign of life at all (I was just hoping the display would at least light up).
My only hope is that the PIC has to have the right DEFINE's in place even to light up, fingers x'd that's the case, or NASA I've got a problem
Dave
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I would not expect much till it is all connected and coded.
Do you have a POT on he contrast pin?
Still having trouble after all is connected post the connections, code, and trouble having.
Do not forget to turn off the ADC...
Dave
Always wear safety glasses while programming.
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