User`s manual

on the programmer's cover. The programmed device is
necessary to insert into the socket also to remove from the
socket when LED BUSY light off.
Warning: 844A programmer hasn’t protection devices, which
protect the content of programmed device against critical
situations, for example power failures and PC failure
(interrupted cable...). Moreover, a device is usually destroyed
in the programming mode due to forced interruption of the
control program run (Reset or switching the computer off) due
to removing the connecting cable, or unplugging the
programmed device from the ZIF socket. Incorrectly placed
device in the ZIF socket can cause its damage or destruction.
In-system serial programming by
844A
For general definition, recommendation and direction about
ISP see section Common notes / ISP please.
Description of 844A ISP connector
1
2
3
4
5
6
7
8
9
10
Front view at ISP connector of programmer.
Specification of ISP connector pins depends on the device,
which you want to program. You can find it in the control SW
for programmer (PG4UW), menu Device / Device Info
(Ctrl+F1). Be aware, the ISP programming way of respective
device must be selected. It is indicated by (ISP) suffix after
name of selected device.
These specifications correspond with application notes
published of device manufacturers. Used application notes you
may find on
www.bkprecision.com.
Note: Pin no. 1 is signed by triangle scratch on ISP cable
connectors.
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