SPRUJC0 June 2024
The F28P55x LaunchPad features two fully independent BoosterPack XL connectors. Both BoosterPack sites 1 and 2 are compliant with the BoosterPack standard. To expand the functions available to the user on this LaunchPad, some signals are also routed to alternate locations on the board. These alternate routes can be selected by manipulating the onboard switches or by adding and removing 0Ω resistors. This is described in Section 2.1.3.
The GPIO pin numbers as well as the BoosterPack compliant features can be viewed in the LAUNCHXL-F28P55X Pinout Map (SPAZ056). Each GPIO has multiple functions available through the GPIO mux of the F28P55x device. Some specific functions have been listed in the pinout map; the full GPIO mux table can be found in the TMS320F28P55x Real-Time Microcontrollers data sheet.
All of the analog signals (denoted ADCIN) of the F28P55x MCU are routed to the J1/J3 and J5/J7 BoosterPack headers on the left side of the board. Close to the respective BoosterPack header each ADC input signal has component pads for a series resistor and parallel capacitor to create an RC filter. By default, a 0 ohm resistor is populated and the capacitor is left un-populated. Users can populate these components with specific values to filter out noise arriving at the ADC input of the device.