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xylynn
Joined: 26 Nov 2007
Posts: 50
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 11 Aug 2008 4:25 www.electronicspk.com |
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Here I would like to ask some help.....
For me it is the first time for interfacing HD44780 LCD with PIC 16F877....
How can I study for that......
I find some webpages which discuss about HD44780 and 16F84A.....
So what is the different for programming with 16F877 and 16F84A?
How can I upgrade the souce code of 16F84A to 16F877?
Best regard
Thank a lot
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vicky.pace
Joined: 05 May 2008
Posts: 33
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11 Aug 2008 8:49 hd44780u programming with 16f877a |
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| You can have an idea from 8052.com
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Medtronic
Joined: 19 May 2005
Posts: 165
Helped: 11
Location: Egypt
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11 Aug 2008 8:59 16f877 hd44780 |
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Hi my friend
to upgrade any micro to another you must determin which compiler or asymbler you use
Regards
MedTronic
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bld
Joined: 25 Jul 2006
Posts: 54
Helped: 7
Location: Iasi, Romania
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11 Aug 2008 9:31 pic assembler hd44780 |
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| How can I upgrade the souce code of 16F84A to 16F877? |
If you use assembly language, there is almost no problem. Both PIC16F84A and PIC16F877 have exactly the same set of intruction. More, 16F877 includes all the registers that 16F84A has. I think the only care you should take is with the configuration bits and RAM registers used by your firmware.
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madicalphy
Joined: 22 Jul 2007
Posts: 68
Helped: 3
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11 Aug 2008 10:32 hd44780 spanish |
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to learn about PIC, please see the following link.
http://www.electronicspk.com/store/comersus_viewItem.asp?idProduct=29
this one is more related to you.
http://www.electronicspk.com/store/catalog/documents/manual_pic_lab_II.pdf
read chapter # 8 of manual. Your problem will be solved.
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Google
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11 Aug 2008 10:32 Ads |
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xylynn
Joined: 26 Nov 2007
Posts: 50
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11 Aug 2008 15:45 electronicspk.com |
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| Medtronic wrote: |
Hi my friend
to upgrade any micro to another you must determin which compiler or asymbler you use
Regards
MedTronic |
Tanks a lot
Would you like to show me some guide lines
Best Regards
Added after 49 seconds:
| bld wrote: |
| Quote: |
| How can I upgrade the souce code of 16F84A to 16F877? |
If you use assembly language, there is almost no problem. Both PIC16F84A and PIC16F877 have exactly the same set of intruction. More, 16F877 includes all the registers that 16F84A has. I think the only care you should take is with the configuration bits and RAM registers used by your firmware. |
Thank for giving me some guide lines
Added after 12 minutes:
| madicalphy wrote: |
to learn about PIC, please see the following link.
http://www.electronicspk.com/store/comersus_viewItem.asp?idProduct=29
this one is more related to you.
http://www.electronicspk.com/store/catalog/documents/manual_pic_lab_II.pdf
read chapter # 8 of manual. Your problem will be solved. |
Thanks a lot for helping me
Your websites are very interesting to read and study........
Added after 11 minutes:
Dear
How can I check the codes I've written in the source code and the codes entered by keypad? Please kindly guide me........
Thank you
With regards
xylynn
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xylynn
Joined: 26 Nov 2007
Posts: 50
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14 Aug 2008 13:21 hd44780 16f877 |
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How can change the codes????
Please kindly giude me
Best regards
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xylynn
Joined: 26 Nov 2007
Posts: 50
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15 Aug 2008 3:19 pic16f877 hd44780 time |
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i've the code written for 16f84a... now i try to use 16f877....
i use assmebly language and MPASMWIN assembler...
please kindly reply me
Best Regards
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