Texas Instruments CC2540DK-MINI User Manual page 30

Once the CC Debugger is set up with the status indicator LED showing green, you are ready to either read
or write a hex file from the board, or to start debugging a project using IAR Embedded Workbench.
Power Savings Tip: Do not leave the CC Debugger connected to the keyfob for and extended period of
time with the battery in the keyfob. This will cause a higher, constant current draw from the battery,
and will significantly reduce the battery life.
If you intend to perform a lot of debugging and expect to leave the debugger connected to the keyfob
for a long time, it is possible to supply power directly from the CC Debugger. In this case, the first thing
you need to do is to remove the battery. This is important in order to avoid any charging current to the
battery.
On the CC2540Keyfob, locate the pads for resistor R1, which are located immediately next to the debug
header. Using a soldering iron, solder a small piece of wire across the two pads, shorting them together
as shown in Figure 43.
On the CC2541 Keyfob, short-circuit the two pins on the P1 connector, next to the LED, with the small
jumper included in the kit.
WARNING!
of personal injury and/or property damage due to potential of explosion/rupture
of battery due to charging the coin cell, always make sure battery is completely
removed from the CC2541 Keyfob before trying to power it from the CC
Debugger. As with any lithium battery, proper disposal should always be done
and keep out of the reach of children at all times.
Figure 42 CC Debugger Interface
Figure 43 CC2540, Power Device Using CC Debugger
This kit includes a non-rechargeable lithium battery. To minimize risk
Page 30 of 38
SWRU270C