Texas Instruments TS3A227E, User Manual, Page: 15 / 30

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Using the GUI
Figure 18. TS3A227E-EVM GUI Details
Figure 18 highlights areas of the EVM GUI that are explained in the following:
• The orange section runs algorithms to determine the real-world values corresponding to the output of
the TS3A227E, that is, the
Accessory Detection box in the top left monitors the Accessory Type
register (0x08) to determine what is attached.
• The purple section of the GUI denotes the current status of the MSP430 GPIOs, in addition to
indicating when a key is pressed:
– Green indicates an active(true) GPIO
– Gray indicates an inactive(false) GPIO
• The green section of the GUI are user input controls for the EVM:
– Un-checking Auto Write on Click disables the auto-write feature when a bit is clicked. Use the 5
Write buttons to write to the device instead of a simple click of a bit cell.
– Auto Read on /INT controls whether the firmware automatically reads the TS3A227E device
registers and sends the values back to the GUI when an Interrupt occurs. Unchecking this box
makes the firmware only update the GUI that an interrupt has occurred.
– The Flash Firmware button installs the default firmware that comes with the GUI onto the
LaunchPad without opening CCS.
15 SLVUAD9 – December 2014 TS3A227E EVM User's Guide
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