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Author Topic: PICkit2/PICkit2 clone/Pikit2  (Read 3058 times)

Offline nucleus

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PICkit2/PICkit2 clone/Pikit2
« on: June 01, 2009, 07:44:29 AM »
sa meron po ng PICkit2/PICkit2 clone/Pikit2 na gumagana ang Variable VDD pakitest naman po:

VDD set to 2.5V VPP = ?
VDD set to 3V VPP = ?
VDD set to 3.5V VPP = ?
VDD set to 4V VPP = ?
VDD set to 4.5V VPP = ?
VDD set to 5V VPP = ?

gusto ko lang po malaman kasi sa schematic po ng pickit2 sa user's guide ay kumuha ang supply ng boost converter sa "+V_TGT" ??? di ko po kasi magets kung bakit pa dun galing ang supply eh, mas mababa din po ba ang VPP ng low voltage PIC? ??? at kung mas mababa bakit kailangan pa na dun kumuha sa regulated pwede naman magregulate dun sa boost converter mismo ???
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PICkit2/PICkit2 clone/Pikit2
« on: June 01, 2009, 07:44:29 AM »

Offline marcelino

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #1 on: June 01, 2009, 09:28:26 AM »
just tried it using the "troubleshoot"... always near sa 12V ang vpp.

tried it with the genuine pickit2 and clone.

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #1 on: June 01, 2009, 09:28:26 AM »

Offline nucleus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #2 on: June 01, 2009, 10:01:32 AM »
just tried it using the "troubleshoot"... always near sa 12V ang vpp.

tried it with the genuine pickit2 and clone.



bakit po kaya sa regulated nilagay ng microchip ang boss circuit? ??? any idea? kasi nakakadagdag lang yun sa looses ::)
Hi! I'm nucleus and i carry the charge 8)

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #2 on: June 01, 2009, 10:01:32 AM »

Offline nucleus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #3 on: June 01, 2009, 04:04:07 PM »
up!
Hi! I'm nucleus and i carry the charge 8)

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #3 on: June 01, 2009, 04:04:07 PM »

Offline nucleus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #4 on: June 01, 2009, 06:01:29 PM »
up!

baka po pede makahinge ng konti pang info :D
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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #4 on: June 01, 2009, 06:01:29 PM »

Offline 'yus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #5 on: June 01, 2009, 06:08:11 PM »
... kasi nakakadagdag lang yun sa looses ::)
bakit ka naman concerned sa losses?
eh minimal lang naman ang power consumption ng pickit2.
 yung 18f2550 na ang pinakamaiinit na pyesa.
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Offline nucleus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #6 on: June 01, 2009, 06:20:55 PM »
bakit ka naman concerned sa losses?
eh minimal lang naman ang power consumption ng pickit2.
 yung 18f2550 na ang pinakamaiinit na pyesa.

near 12V parin ang VPP kahit na nakaselect ang VDD sa mas mababa kesa 5V ??? naguguluhan lang po ako kasi kung ganun po ibig sabihin ang 3.3V PIC ay 12V din ang VPP ???
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Offline 'yus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #7 on: June 01, 2009, 06:36:28 PM »
yung mga LF na PIC,during programming around 5V din ang VDD and around 12V pa din ang Vpp.

ewan ko lang sa case ng dsPIC (3.3V), check ko mamaya..
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Offline nucleus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #8 on: June 01, 2009, 06:44:38 PM »
just tried it using the "troubleshoot"... always near sa 12V ang vpp.

tried it with the genuine pickit2 and clone.



boss na click mo po yung "On" button sa may left? katabi ng lagayan ng value :) kasi sa junebug ko po sinukat ko yung output pin ng PIC18F2550 na nagcocontrol sa variable VDD gumagana sya pero yun nga po sa original pickit2 nakatap ang supply ng boost circuit sa variable VDD at meron pong voltage divider na feedback ang boost circuit ???
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Offline 'yus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #9 on: June 01, 2009, 06:47:25 PM »
.. kaya naman pala eh.. "junebug" yan.. baka maraming bugs.. hehe :D
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Offline Mayalin22

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #10 on: June 01, 2009, 07:27:32 PM »
 :D
Simpler designs are usually better.

Offline RiDdLeR???

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #11 on: June 01, 2009, 07:29:33 PM »
nabuhay nanaman yung junie bug  ;D ;D ;D

Offline nucleus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #12 on: June 01, 2009, 07:30:47 PM »
.. kaya naman pala eh.. "junebug" yan.. baka maraming bugs.. hehe :D

??? di mo ba alam first day of june ngayon :D ;D
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Offline AirWire

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #13 on: February 13, 2010, 12:11:01 PM »
Kung pino-program mo yung PIC, dalawa actually ang kailangan mo. Kapag F part (halimbawa 18F2550), kailangan mo lagyan ng +5V sa Vdd, and kailangan mo ng +12V sa VPP, or (MCLR pin). Kapag LF part naman (halimbawa 18LF2550), kailangan mo ng +3.6V sa Vdd at +12V pa rin sa Vpp.

Yung sa Vpp, required talaga yun na 12V. Programming voltage kasi un para sa flash. Kailangan yun para ma-program yung Flash memory mo. Kung naka LVP ka naman, may internal charge pump na gagawa ng +12V para maprogram yung flash memory. Ganun din sa EEPROM, charge pump po ang gamit para makapag-erase at makapag write.


Offline nucleus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #14 on: February 13, 2010, 12:54:30 PM »
Kung pino-program mo yung PIC, dalawa actually ang kailangan mo. Kapag F part (halimbawa 18F2550), kailangan mo lagyan ng +5V sa Vdd, and kailangan mo ng +12V sa VPP, or (MCLR pin). Kapag LF part naman (halimbawa 18LF2550), kailangan mo ng +3.6V sa Vdd at +12V pa rin sa Vpp.

Yung sa Vpp, required talaga yun na 12V. Programming voltage kasi un para sa flash. Kailangan yun para ma-program yung Flash memory mo. Kung naka LVP ka naman, may internal charge pump na gagawa ng +12V para maprogram yung flash memory. Ganun din sa EEPROM, charge pump po ang gamit para makapag-erase at makapag write.



dba po sa pickit2 software naivavary yung target VDD para sa mga bagong device na low voltage lang ayon sa aking kaunting kaalaman 8V lang ang dapat na VPP
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Offline AirWire

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #15 on: April 23, 2010, 05:22:19 PM »
Tama po kayo, may devices na 8.5V lng ang Vpp. Here are some info about Vpp Voltage for different families base sa PICKIT2 software.
Baseline                                 : 12.5 V
Midrange Standard Configuration: 12.0 V
Midrange 1.8V                         : 8.5 V
PIC18F                                   :12.0 V
PIC18F_J_                               : 3.6 V (Double chek ko, 3.6V talaga!)
PIC18F_K_                              : 8.5 V

an so on. Check nyo yung sofftware. :)
Automatic na sineset nung PICKIT2 kung ano yung Vpp. Depende kasi sa device family na pinipili mo. :)

Yung Vdd ang alam kong nababago. Pero may autodetect naman sya, kaya doon na ako sa autodetect. :D he he he

Yung PIC18F2550, since belong to the family PIC18F, then 12 V dapat Vpp nya. Try to consult the datasheet na lng. I guess nasa datasheet yung recommended Vpp range. :)



Offline nucleus

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #16 on: April 24, 2010, 02:32:46 AM »
Tama po kayo, may devices na 8.5V lng ang Vpp. Here are some info about Vpp Voltage for different families base sa PICKIT2 software.
Baseline                                 : 12.5 V
Midrange Standard Configuration: 12.0 V
Midrange 1.8V                         : 8.5 V
PIC18F                                   :12.0 V
PIC18F_J_                               : 3.6 V (Double chek ko, 3.6V talaga!)
PIC18F_K_                              : 8.5 V

an so on. Check nyo yung sofftware. :)
Automatic na sineset nung PICKIT2 kung ano yung Vpp. Depende kasi sa device family na pinipili mo. :)

Yung Vdd ang alam kong nababago. Pero may autodetect naman sya, kaya doon na ako sa autodetect. :D he he he

Yung PIC18F2550, since belong to the family PIC18F, then 12 V dapat Vpp nya. Try to consult the datasheet na lng. I guess nasa datasheet yung recommended Vpp range. :)



:)
hehe kaya po nasali yung F2550 kasi yun ang gamit ng pckit2
Hi! I'm nucleus and i carry the charge 8)

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Re: PICkit2/PICkit2 clone/Pikit2
« Reply #16 on: April 24, 2010, 02:32:46 AM »

 

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