3V3
~GP3
~GP4
*GP5
*GP8
J3
J1
*GP19
*GP18
*GP14
*GP13
*GP12
*GP11
*GP18
*GP19
*GP14
J4
J2
J9
Interfacing with External Hardware
13
SLLU250 – November 2016
Copyright © 2016, Texas Instruments Incorporated
BOOSTXL-RS232 BoosterPack™ Hardware
5
Interfacing with External Hardware
TI BoosterPacks are designed in a way that allows multiple devices (BoosterPacks and LaunchPads) to
continually stack on top of each other.
CAUTION
When stacking devices, correctly align the two devices and make sure that any
unwanted connections are not made by accident. Unwanted connections occur
when header pins on the bottom device contacts vias or through-hole solder
joints of the upper device. These unwanted contacts can create shorts that may
cause incorrect circuit operation and could potentially cause damage to the
hardware.
shows the top layer of the BOOSTXL-RS232 with the headers J1-4 and J9 highlighted. J1-4 are
eventually connected directly to LaunchPad pins. J9 is highlighted because the right column is routed
directly to header pins that are connected to LaunchPad pins. The highlighted headers are color matched
to the description boxes on the exterior of the image of the board. If the description boxes are labeled, it
means that they are specifically routed on the BoosterPack. For example, the first red box on the left is
labeled 3V3 and it is lined up with pin 1 of J1, which is highlighted red. This means that pin 1 of J1 is
connected to the 3V3 pin of the LaunchPad. If they are empty, they are not routed. You will notice that the
inner, black headers are not routed at all. This is because they are not needed for the operation of this
board and are left available to stack other development boards that might need them. See
for details regarding connecting to other development boards.
(1)
Pins with no name or description are not connected. Pins with the same name or description are shorted
together.
(2)
* these pins are not required for BoosterPack operation.
(3)
~ these pins are not required to be used but are recommended
Figure 11. Interfacing With LaunchPad
