849 B&K Precision, 849 Datasheet - Page 36

• Manufacturer Part Number: 849
• Description: PROGRAMMER UNIVERSAL DEVICE
• Manufacturer: B&K Precision
• Type: Universalr

Specifications of 849

• Contents: Programmer, Adapter, Cable, Manual and Software
• For Use With/related Products: Serial EEPROM, MCS51 Series and Atmel AVR Series
• Other names: BK849

Connecting 864 to the PC
Switch off PC and programmer. Insert the communication
cable included with your 864 programmer package to a free
printer port on your PC. If your computer is equipped with only
one printer port, substitute the programmer cable for the printer
cable. Connect the opposite cable end to the programmer.
Screw on both connectors to counter-connectors. This is very
important. It may be uncomfortable to switch between printer
cable and programmer cable, though it is not recommended to
operate the 864 programmer through a mechanical printer
switch. Use of an electronic printer switch is impossible. But
you can install a second multi-I/O in your computer, thus
obtaining a supplementary printer port, says LPT2. So your
printer may remain on LPT1 while the programmer on LPT2.
Switch on the PC.
Connect the mains connector of the power supply (or the wall-
plug power supply itself) to a mains plug, then connect the
mini-DIN connector to the programmer's connector labeled
"12VAC". At this time all 'work result' LEDs (and 'POWER'
LED) light up successive and then switch off. Once the
POWER LED lights with low brightness then the 864
programmer is ready to run.
Next run the control program for 864.
Note: When the PC is switch off and you turn on programmer,
LED
permanent on reset.
Caution! If you don't want to switch off your PC when
connecting the 864, proceed as follows:
• When connecting the programmer to the PC: FIRST insert
• When disconnecting the programmer from the PC: FIRST
From 864's point of view the connecting and disconnecting
sequence is irrelevant. Protection circuits on all programmer
inputs keep it safe. But think of your PC please.
Note: Programmer's protection electronics protect the target
device and the programmer itself against either short or long-
term power failures and, partly, also against a PC failure.
However, it is not possible to grant the integrity of the target
device
parameters. Target device may be not destroyed by forced
interruption of the control program (reset or switch-off PC), by
the communications cable and THEN the power-supply
connector.
disconnect the power-supply connector and THEN the
communication cable.
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