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Author Topic: ATMega8 how to?  (Read 2049 times)

Offline Ikasamoko

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Re: ATMega8 how to?
« Reply #40 on: July 01, 2011, 01:41:16 PM »
Update!! Ayos! na revived ko na!! and revived 2 other Atmega8!!

ginamitan ko ng CSB500....:D




Ayon! swak kaagad...

lesson learned....much better na meron XTAL on board pag mag ISP programming...


Salamat sa lahat ng nagbigay ng idea at nag discussed....


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Re: ATMega8 how to?
« Reply #40 on: July 01, 2011, 01:41:16 PM »

Offline e-tronix

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Re: ATMega8 how to?
« Reply #41 on: July 02, 2011, 08:10:36 PM »
nice sis
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Re: ATMega8 how to?
« Reply #41 on: July 02, 2011, 08:10:36 PM »

Offline Ikasamoko

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Re: ATMega8 how to?
« Reply #42 on: July 06, 2011, 03:01:28 PM »
Hay..nkakawala gana na tong Atmega8 na to...:(

heto lock na naman ako ng peste na to...

di user friendly yung mga fuse at config nito...tsk...


anu ba ngyari na kahit may XTAL na di pa rin ma READ? Grrrrrrrr....

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Re: ATMega8 how to?
« Reply #42 on: July 06, 2011, 03:01:28 PM »

Offline Ikasamoko

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Re: ATMega8 how to?
« Reply #43 on: July 06, 2011, 03:30:54 PM »
ito yung last setting ko...pag click ko ng WRITE...ayun ayaw na ulit ma read..:(

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Re: ATMega8 how to?
« Reply #43 on: July 06, 2011, 03:30:54 PM »

Offline RiDdLeR???

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Re: ATMega8 how to?
« Reply #44 on: July 06, 2011, 04:39:29 PM »
^ In that particular case, you set the cksel fuse to use external clock.  Hindi talaga gagana yan kahit may crystal ka pa.  You need to provide external clock to xtal1 pin.

Sa umpisa lang medyo nakakalito yan.
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Re: ATMega8 how to?
« Reply #44 on: July 06, 2011, 04:39:29 PM »

Offline RiDdLeR???

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Re: ATMega8 how to?
« Reply #45 on: July 06, 2011, 04:45:34 PM »
gawa ka na lang ng atmega fusebit doctor  .... wala ng kailangan na fuse settings, it just uses the default fuse ng atmega. 

sige gayahin ko fuse settings mo mamaya ...  tignan ko kung kaya marevive using usb avr lab.
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Offline Ikasamoko

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Re: ATMega8 how to?
« Reply #46 on: July 06, 2011, 04:46:51 PM »
Saan nman yung CKSEL dyan sis?? huhuhuhu..nakaka hilo...:(

Which particular pin ko inject yung clock sis??
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Offline RiDdLeR???

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Re: ATMega8 how to?
« Reply #47 on: July 06, 2011, 05:29:46 PM »
I mean naset mo yung cksel fuse to use external clock.  Xtal1 pin is the tosc1 pin.  Kung buo pa ang pinguino mo or any other pic na may crystal,  just connect osc1 pin of the pic to tosc1 pin of the avr.  Both grounds must be connected together.  Mabubuhay mo na ulit yan. 
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Offline Ikasamoko

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Re: ATMega8 how to?
« Reply #48 on: July 06, 2011, 06:06:43 PM »
Nandun Pinquino ko naka tambak...:P

sige gagawin ko yung...unahin ko na lang muna tapusin itong USBASP ko..hirap kasi mag program na nasa work area ko pa yung desktop pc na gamit...:(
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Offline malamig

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Re: ATMega8 how to?
« Reply #49 on: July 06, 2011, 07:43:04 PM »
^sis kas gawa ka ng fusebit doctor tapos share mo kung anong version yung tatakbo :)
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Offline Macgyver

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Re: ATMega8 how to?
« Reply #50 on: July 06, 2011, 07:58:20 PM »
kakastart ko din mag avr.

talaga bang kailangan galawin mga fusebits at avr?  so far default lang ginagamit ko on both avr studio and winavr eh. 
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Offline Ikasamoko

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Re: ATMega8 how to?
« Reply #51 on: July 06, 2011, 09:04:27 PM »
ngek pag default sis naka set sa internal clock yun na 1mhz..panu if yung application mo need ng external xtal mostly 12 or 16mhz?
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Offline Macgyver

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Re: ATMega8 how to?
« Reply #52 on: July 06, 2011, 10:31:05 PM »
ah wala pa ako dyan.  di ko pa na tatry.

Eto baka makatulong.  AVR Fuse calculator

http://www.engbedded.com/fusecalc/
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Offline Ikasamoko

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Re: ATMega8 how to?
« Reply #53 on: July 06, 2011, 10:51:12 PM »
Quote from: Macgyver on July 06, 2011, 10:31:05 PM
ah wala pa ako dyan.  di ko pa na tatry.

Eto baka makatulong.  AVR Fuse calculator

http://www.engbedded.com/fusecalc/

eh anung level ka pa lang? :P

useless na yan...since i accidentally set my mega8 for external clock source by setting CKSEL0...3 to 0000 need ko na talaga external clock source...

Dami ko dati TTL Clock crystal..di ko na makita ngayun...maybe I can tapped for a working uC for clock source...
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Offline rdpzycho

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Re: ATMega8 how to?
« Reply #54 on: July 07, 2011, 12:19:52 AM »
^ yup pwede 'yung sis. or use a NAND gate.

Quote from: Macgyver on July 06, 2011, 07:58:20 PM
kakastart ko din mag avr.

talaga bang kailangan galawin mga fusebits at avr?  so far default lang ginagamit ko on both avr studio and winavr eh. 

minsan kailangan talaga sis. ang default kasi is Internal RC Oscillator tapos naka-enable 'yung CKDIV/8. bale kung 8MHz 'yung internal, 1MHz lang siya.
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Offline Ikasamoko

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Re: ATMega8 how to?
« Reply #55 on: July 07, 2011, 12:22:35 AM »
Hirap nito eh baliktad sa AVR...:D

yung 0 is ENABLE while 1 is DISABLE...:P
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Offline Macgyver

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Re: ATMega8 how to?
« Reply #56 on: July 07, 2011, 07:20:47 AM »
oo nga eh, kainis.  

sana nilubos na rin nya.  HIGH=0, LOW=1   Bwahaha :D:D
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Offline Kaizer03

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Re: ATMega8 how to?
« Reply #57 on: July 07, 2011, 10:31:45 AM »
basa basa lang muna ko :D

hehe

para di rin ako mabwisit ng husto hahaha
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Offline Ikasamoko

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Re: ATMega8 how to?
« Reply #58 on: July 07, 2011, 11:32:15 AM »
iwas pusoy ang gaga na to...go na ng ma sexperience mo na rin....:P
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Offline rdpzycho

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Re: ATMega8 how to?
« Reply #59 on: July 07, 2011, 11:38:37 AM »
Quote from: Macgyver on July 07, 2011, 07:20:47 AM
oo nga eh, kainis. 

sana nilubos na rin nya.  HIGH=0, LOW=1   Bwahaha :D:D

 :D :D :D

AFAIK, 'yun kasi 'yung actual condition sa physical circuit kaya 'di na linagyan ng inversion. dagdag stages kasi saka power consumption.
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Philippine Electronics Forum

Re: ATMega8 how to?
« Reply #59 on: July 07, 2011, 11:38:37 AM »
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