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Author Topic: mcu question  (Read 8315 times)

Offline zer0w1ng

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Re: mcu question
« Reply #20 on: April 10, 2008, 09:59:38 AM »
1. PIC16F876 or PIC16F877
2. PIC16F648 but with comparator also.
3. I don't know, maybe others can answer this better.
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Re: mcu question
« Reply #20 on: April 10, 2008, 09:59:38 AM »

Offline paranz

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Re: mcu question
« Reply #21 on: April 10, 2008, 10:00:00 AM »
Quote from: quistiun on April 10, 2008, 09:51:42 AM
another questions,
1. ano pong pic ang widely available sa atin na meron nang adc, timer at usart?
pic16f877, pic16f877a - P350 more or less

2. pic na may timer at usart lang?
pic16f628a <-- P220 more or less

3. magkano po kaya ito at saan nakakabili?
alexan or e-gizmo dito sa atin
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Re: mcu question
« Reply #21 on: April 10, 2008, 10:00:00 AM »

Offline paranz

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Re: mcu question
« Reply #22 on: April 18, 2008, 07:18:59 PM »
Quote from: quistiun on April 09, 2008, 12:13:01 PM
thanks sir for the great replies, baka sir meron po kayong tutorial kung paano gumawa ng serial programmer at software para sa pagdownload ng hex files sa pic?

gagawa ng PCB layout ng JDM programmer  si sir sevenstring, share daw niya sa atin hehe. This is a serial-port based PIC programmer.  ;D ;D ;D

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Re: mcu question
« Reply #22 on: April 18, 2008, 07:18:59 PM »

Offline 1110000

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Re: mcu question
« Reply #23 on: April 18, 2008, 08:26:50 PM »
subukan ninyo itong junebug kit ng www.blueroomelectronics.com mura lang PICkit2 Compatible with built in tutor pa at sa halagang $49 USD + $15 shipping eh makakabili ka na!!, at kahit manggagaling pa ng Canada eh 
5-7 business days lang ang itatagal from Canada to Philippines, kaya kung ako sa inyo umorder na kayo baka maubusan pa eh!! sayang! naman!

marami pang ibang kit na mabibili sa www.blueroomelectronics.com please check the site for more info, ;)
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Re: mcu question
« Reply #23 on: April 18, 2008, 08:26:50 PM »

Offline ♪ ♫ ♫ ♪ ♪ ♪ ♫ ♫ ♫

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Re: mcu question
« Reply #24 on: April 18, 2008, 08:57:54 PM »

yon bang serial port na JDM programmer pwede bang gamitan ng USB to RS232 coverter ng cdrking? wala kasing serial port tong laptop ko but i have the converter.
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Re: mcu question
« Reply #24 on: April 18, 2008, 08:57:54 PM »

Offline RiDdLeR???

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Re: mcu question
« Reply #25 on: April 18, 2008, 09:21:05 PM »
Quote from: arcadeo on April 18, 2008, 08:57:54 PM
yon bang serial port na JDM programmer pwede bang gamitan ng USB to RS232 coverter ng cdrking? wala kasing serial port tong laptop ko but i have the converter.
Check first kung anong rs232 voltage ang naegenerate nung usb adapter mo.  Kasi ako dati, I tried it with my diy serial jdm programmer and a usb-r232 dongle, hindi gumagaa pero sa serial port ng pc gumagana.

If I remember correctly, kapag turned off ang low voltage programming option ng pic, yung programming voltage has to be greater than 12V ata and normally sa mga usb-rs232, ang voltage generated is upto +- 10V lang.  RS232 voltage level is specified at +- 15V whereas most pc rs232 serial port  generate about +-12V.
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Offline 1110000

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Re: mcu question
« Reply #26 on: April 18, 2008, 09:58:42 PM »
yung junebug USB na!!!  ;D :P
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Offline beginner wan

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Re: mcu question
« Reply #27 on: April 18, 2008, 10:22:03 PM »
$64??? wat?!!
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Offline 1110000

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Re: mcu question
« Reply #28 on: April 18, 2008, 10:48:02 PM »
oo $64 USD, yung junebug PICkit2 compatible ito atsaka may built in pa na 18F1320 Tutor / Experimenter
at kapag generous ka eh pwede kang bigyan ng free stuffs ;D ;D ;D
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Offline paranz

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Re: mcu question
« Reply #29 on: April 18, 2008, 10:58:26 PM »
Quote from: arcadeo on April 18, 2008, 08:57:54 PM
yon bang serial port na JDM programmer pwede bang gamitan ng USB to RS232 coverter ng cdrking? wala kasing serial port tong laptop ko but i have the converter.

pwede naman siguro yung sa modified version ni 7string.

Take note that jdm pic programmer do not use an external DC supply, mas cheaper ito. It derives its power from the serial port mismo. Kaso lang eh minsan hindi gumagana with some PCs/laptop. Yung version ni 7string will be modified since he will add a 7805 regulator, which  also means na gagamit ka na ng DC adoptor. Ok na rin ito.
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Offline 1110000

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Re: mcu question
« Reply #30 on: April 18, 2008, 11:03:56 PM »
junebug is powered by the USB ;D ;D ;D :P
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Re: mcu question
« Reply #31 on: April 18, 2008, 11:52:31 PM »
okay, so kailangan lang nang external supply.
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Offline paranz

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Re: mcu question
« Reply #32 on: April 18, 2008, 11:53:46 PM »
Quote from: arcadeo on April 18, 2008, 11:52:31 PM
okay, so kailangan lang nang external supply.


yuhu 7string, where are you?

nabasa mo ba ito? marami naghihintay sa pcb mo nyahaha
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Offline 0b00000111

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Re: mcu question
« Reply #33 on: April 19, 2008, 12:18:58 AM »
;D ;D

ayan pwede sa pic pwede sa i2c eeprom...

for reliability: tanggalin nyo lang yung R1,DZ1, at D1... palitan nyo ng +5V source (7805 na lang or kayo bahala kung ano gusto nyong gamitin ;D )

btw, kung gagamitin nyo ito, kelangan macheck yung usb to rs232 converter, kasi yung nabili ko sa cd-r king, 0 to +5V lang ang swing ng txd nakita ko sa oscilloscope, kekelanganin nya ng mataas na voltage sa Vpp para kapagprogram...

sa i2c eeprom, i think ok lang...
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Offline paranz

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Re: mcu question
« Reply #34 on: April 19, 2008, 12:21:44 AM »
the PCB layout please....  ;D ;D ;D
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Offline 0b00000111

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Re: mcu question
« Reply #35 on: April 19, 2008, 12:23:49 AM »
inaantay ko pang dalawin ako ng kasipagan  ;D ;D ;D
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Offline rdpzycho

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Re: mcu question
« Reply #36 on: April 19, 2008, 12:24:44 AM »
Quote from: sevenstring on April 19, 2008, 12:18:58 AM
btw, kung gagamitin nyo ito, kelangan macheck yung usb to rs232 converter, kasi yung nabili ko sa cd-r king, 0 to +5V lang ang swing ng txd nakita ko sa oscilloscope, kekelanganin nya ng mataas na voltage sa Vpp para kapagprogram...

doing hobby project on work? o may oscilloscope rin sa bahay? ??? ;D
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Offline paranz

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Re: mcu question
« Reply #37 on: April 19, 2008, 12:26:11 AM »
bawal ang tatamad-tamad.  ::)

ang taong tamad ay taong pangit  ;D
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Offline beginner wan

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Re: mcu question
« Reply #38 on: April 19, 2008, 12:29:42 AM »
pwede ba mag volunteer sa lay out? ;D ;D ;D
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Offline paranz

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Re: mcu question
« Reply #39 on: April 19, 2008, 12:30:42 AM »
Quote from: beginner wan on April 19, 2008, 12:29:42 AM
pwede ba mag volunteer sa lay out? ;D ;D ;D

hindi pwede, si 7string gusto namin!  ;D ;D ;D
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Re: mcu question
« Reply #39 on: April 19, 2008, 12:30:42 AM »
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