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20
PicTools Manual 3.0
Details
To read the contents of an MCU, choose "Run - Auto Read Only" from the main menu (or Ctl+R).
If multiple sockets have been selected, a pop-up menu will appear for you to select the socket you
wish to read from. After selecting the socket, the entire contents of the MCU (including I.D.
locations and Configuration Word) will be loaded into the QuickWriter software.
Unless you intend to make exact duplicates of the MCU just read, remember to re-open the HEX
file before programming another device.
(see also: Setting General Options
7
; and Setting Options for Production Personnel
14
)
Shortcuts
Ctl+R
Alt+R, R
2.4
Advanced
Advanced
·
In-Circuit Programming 20
·
·
·
·
·
ICP with Self Powered Targets
Cable Connector 23
Command-line Operation 23
Exit Codes 24
Legend - Programming Tasks
21
25
2.4.1
In-Circuit Programming
Overview
QuickWriter can be used with single socket and gang programming adapters, but one of its key
features is the ability to program devices already incorporated in a working circuit. To program
devices in-circuit, a few requirements must be met by the target.
For a detailed discussion on the key issues related to in-circuit programming, see the In-Circuit
Programming Guide installed with the QuickWriter software.
NOTE: ICP does not support parallel programmed devices (i.e. PIC16C55, PIC16C57, etc.).
Details
When using the ICP cable (provided with QuickWriter), always select Socket A. If additional
sockets are selected or if socket A is not selected, programming errors will occur.
If any error messages appear during ICP, pay special attention to any messages relating to
voltage errors. QuickWriter performs extensive voltage testing to help prevent damage to itself and
your target. All suggestions presented in the error dialog should be checked thoroughly before
another programming attempt is made.
Target Design Recommendations
Use a 10K Ohm or larger pull up on MCLR Use 10uF or less capacitance on MCLR (most
targets use none).
? 2007 TechTools
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