| Mileage Correction .Net :: |
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Guest
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| Posted: Wed Apr 23, 2008 1:05 am Post subject: without crystals |
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| hi everyone, I'm using the diga programmer without joining the contacts of the crystals. It is working pretty well, but is it harmful??? Or must I join the contacts of the crystals??? |
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Google
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| Posted: Post subject: Sponsored Link |
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rikko6
Junior member
Joined: 26 Jan 2006
Posts: 15
Location: Australia
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| Posted: Wed Apr 23, 2008 1:34 am Post subject: |
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| I never short crystal on toyota and never had a problem |
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hcip
Senior Member
Joined: 03 Mar 2006
Posts: 187
Location: Brgy. Commonwealth, Quezon City Philippines
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| Posted: Wed Apr 23, 2008 2:32 pm Post subject: |
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joining the crystal to read/ write the eeprom is just to avoid the crystal from oscillating when the +5v aplied to the circuit to put the MCU in off state this is for better reading of eeprom datasheet
This is to avoid the MCU from generating unwanted code upon reading the eeprom content
for some dash you do not need to join them depending the class of circuit
for some nissan dash you do not need to remove the eeprom
The pin1 of programming Pad is the oscilator on/off pin and need to connect in ground(negative side) to off the oscillator
see the picture
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