Texas Instruments TMS320C3 Series, User Manual, Page: 20 / 166

What You Need
2-2
2.1 What You Need
The following checklists detail items that are shipped with the DSK assembler
and debugger and any additional items you’ll need to use this tool. The DSK
module connections with a parallel printer port are also discussed in this sec-
tion.
Hardware checklist
Host An IBM

PC/AT

or 100%-compatible PC with a hard disk system
and a 1.2 megabyte floppy-disk drive and parallel printer port com-
munication link
Memory Minimum of 640K bytes
Display Monochrome or color (color recommended)
Power requirements A UL Class II power supply with a 2.1-mm power jack connector that
provides 7–12 Vdc or 6–9 Vac and at least 400–1500 mA, which is
common to most wall-mounted DC transformers. For isolated wall
mount supplies, the polarity of the 2.1 mm power jack does not mat-
ter. Laboratory-type power supplies with case grounds are not rec-
ommended since they can create ground loops and possibly create
a short circuit through the DSK full-wave rectifier.
Note:
-
You may want to use the DSK’s on-board power supply and regulators
for external circuits. If so, do not overload the circuit. External loads will
cause the regulators to operate at a higher temperature. Loads >50 mA
are not recommended.
-
If you make modifications or you are using an external laboratory power
supply, be sure you connect it to the DSK correctly; the DSK is not war-
ranted after you make modifications to it.
To minimize risk of electric shock and fire hazard, the power supply
adapter should be rated UL class 2. The adapter and personal
computer providing energy to this product should be certified by
one or more of the following: UL, CSA, VDE, TUV.