using install the latest software install the mplab ide software onto your pc using the mplab ide cd-rom or download the software from the mplab ide page of the microchip web site (www.microchip.com/mplab). check the latest release notes for additional information. configure pc usb communications connect mplab icd 3 in-circuit debugger to a pc usb port via a usb cable. if the drivers do not install automatically, then install the drivers as instructed in:
ddri.htm. note: if a usb hub is used, the hub must be powered with its own power supply. connect to target device build your project 1. launch mplab ide. 2. load your project or use the project wizard to create a new one. 3. build your project based on your configurations and options. 4. attach the mplab icd 3 to the pc using the usb cable. 5. select the mplab icd 3 as either a debugger ( debugger>select tool> icd 3) or as a programmer ( programmer>select programmer> icd 3). typical debugger system ? device with on-board ice circuitry 1. ensure the mplab icd 3 is attached to the pc using the usb cable, if not already. 2. remove the icd 3 test interface board and attach the modular cable between the debugger and target board. 3. connect power to the target board. target connector pinout *target device must be running with an oscillator for the debugger to function as a debugger. **if the device has av dd and av ss lines, they must be connected for the debugger to operate. standard connection at target bottom view of target board 2 4 6 1 3 5 the microchip name and logo, the microchip logo, mplab and pic are registered trademarks of microchip technology incorporated in the u.s.a. and other countries. the mplab certified logo ? 2010 microchi p technolo gy inc. , 3/10 ds51765c www.microchip.com and icsp are trademarks of microchip technology incorporated in the u.s.a. and other countries. ? 2010 microchip technology incorporated. printed in the u.s.a. all rights reserved. 2/10 1 2 3 4 5 6 mplab icd 3 rj-11 jack pinout ? do not use greater than 100 ? f capacitance on v dd ? depending on the overall load, it will prevent the target from powering quickly when mplab icd 3 is the source of power. ? do not use capacitors on mclr ? they will prevent fast transitions of v pp . ? do not use pull-ups on pgc/pgd ? they will divide the voltage levels since these lines have 4.7 k ? pull-down resistors in mplab icd 3. ? do not use multiplexing on pgc/pgd ? they are dedicated for communications to mplab icd 3. ? do not use capacitors on pgc/pgd ? they will prevent fast transitions on data and clock lines during programming and debug communications. ? do not use diodes on pgc/pgd ? they will prevent bidirectional communication between mplab icd 3 and the target pic? mcu. target circuit design precautions target application pc board 2 1 5 4 3 target v dd (tv dd ) v dd pgc pgd v ss av dd ** av ss ** xtal* t e g r a t n o i t a c i l p p a e c i v e d v pp /mclr incorrect 2 1 5 4 3 dd target v dd (tv ) 4.7 - 10 k typical target application pc board v dd pgc pgd v ss av dd ** av ss ** xtal* t e g r a t n o i t a c i l p p a e c i v e d tv dd 4.7 k 4.7 k tv dd tv dd tv dd tv dd mplab icd 3 internal circuitry (simplified) target v dd (tv dd ) is used to power the input/output drivers in mplab icd 3 debugger v pp correct v pp /mclr recommended settings note: see the mplab icd 3 user?s guide for more component and setting information. additional information circuitry and connector pinouts use the supplied icd 3 test interface board to verify that the mplab icd 3 is functioning properly: 1. connect the icd 3 test interface board to the debugger using the modular cable. 2. ensure that ?mplab icd 3? is selected on either the debugger or programmer menu in mplab ide. 3. from that menu, select ?settings?, status tab, then click on run icd 3 test interface. the status (pass/fail) is displayed in the output window. if a pass message is displayed, the mplab icd 3 is functioning properly. icd 3 test interface board usb/power from pc modular cable use the icd 3 test interface board program and debug 1. program your device. 2. as a programmer, mplab icd 3 will automatically run your code. as a debugger, you can run, halt, single step and set breakpoints in your code. alternate debugger system configuration using an ice device targ et bo ard transition socket device-ice proc es so r pak standard adapter header usb from pc device-ice icd header or power v dd usb from pc power ta r get d ev i c e or pim targ et bo ard 1 2 3 5 4 6 reserved resources for information on reserved resources used by the debugger, see the mplab icd 3 on-line help. modular connector pin microcontroller pin 1 mclr/v pp 2 v dd 3 ground 4 pgd (icspdat) 5 pgc (icspclk) 6 pgm (lvp) component setting oscillator ? osc bits set properly ? running power supplied by target wdt disabled (device dependent) code-protect disabled table read protect disabled lvp disabled bod v dd > bod v dd min jtag disabled av dd and av ss must be connected pgcx/pgdx proper channel selected, if applicable programming v dd voltage levels meet programming specs pin signal pgm 1 pgc 2 pgd 3 ground 4 v dd 5 mclr/v pp 6
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