Detailed description

Detailed description of the HIL TI uGrid Launchpad Interface

The board features the following key sections, as shown in Figure 1.

  • HIL Analog connector
  • HIL Digital connector
  • Measurement terminals
  • PSU selector switches
  • LaunchPad™ connector groups 1, 2, and 3
  • HIL DO enable switches

Figure 1: HIL TI uGrid Launchpad Interface layout

HIL Analog Connector

This is a 96 pin DIN 41612/IEC receptacle connector that is directly pluggable into the Analog I/O connector, found on all Typhoon HIL hardware emulators. Table 1 shows how 48 analog signals (32 analog outputs and 16 analog inputs) from Typhoon HIL emulators are connected to the LaunchPad™ headers.

To protect against overvoltage conditions, HIL Analog Outputs feature series 120Ω RZ1-RZ16 resistors that, together with protection diodes (U2-U5), form a 0-3.3V referenced clamping circuit.

Table 1. Analog Output signal routing
HIL Analog Output Launchpad 1 LaunchPad 2 LaunchPad 3
AO1 ADCINA4 - -

AO2

ADCINB4

- -
AO3 ADCINC4 - -
AO4 ADCIN15 - -
AO5 ADCINA2 - -
AO6 ADCINB2 - -
AO7 ADCINC2 - -
AO8 ADCINA3 - -
AO9 ADCINB3 - -
AO10 ADCINC3 - -
AO11 ADCIN14 - -
AO12 - ADCINA2 -
AO13 - ADCINB2 -
AO14 - ADCINC2 -
AO15 - ADCINA3 -
AO16 - ADCINC3 -
AO17 - ADCINA4 -
AO18 - ADCINB4 -
AO19 - ADCINC4 -
AO20 - ADCIN15 -
AO21 - - ADCIN14
AO22 - - ADCINC3
AO23 - - ADCINB3
AO24 - - ADCINA3
AO25 - - ADCINC2
AO26 - - ADCINB2
AO27 - - ADCINA2
AO28 - - ADCINC4
AO29 - - ADCINB4
AO30 - - ADCINA4
AO31 - ADCINB3 -
AO32 - ADCIN14 -
Table 2. Analog Input signal routing
HIL Analog Input Launchpad 1 LaunchPad 2 LaunchPad 3
AI1 - DACB -

AI2

- DACA -
AI3 - PWM-DAC3 -
AI4 - PWM-DAC4 -
AI5 DACA - -
AI6 PWM-DAC3 - -
AI7 PWM-DAC4 - -
AI8 DACB - -
AI9 - PWM-DAC2 -
AI10 - PWM-DAC1 -
AI11 PWM-DAC2 - -
AI12 PWM-DAC1 - -
AI13 - - DACB
AI14 - - DACA
AI15 - - PWM-DAC1
AI16 - - PWM-DAC2

HIL Digital Connector

This is a 96 pin DIN 41612/IEC receptacle connector that is directly pluggable into the Digital connector of the Typhoon HIL emulators, followed by three rows of measurement terminals. Table 3 shows how 32 digital signals (16 outputs and 16 inputs) from Typhoon HIL emulator are routed to the LaunchPad™ headers (e.g. LAUNCHXL-F28379D digital stage).

A total of 32 HIL digital outputs are level shifted from the HIL’s 5V to DSP’s 3.3V, using an SN74LVCH16T245 level shifter. Level shifter outputs can be enabled/disabled via the enable switches, shown in Figure 2.

Table 3. Digital Output signal routing
HIL Analog Output Launchpad 1 LaunchPad 2 LaunchPad 3
DO1 GPIO123 - -

DO2

GPIO122

- -
DO3 GPIO58 - -
DO4 GPIO24 - -
DO5 GPIO59 - -
DO6 GPIO16 - -
DO7 GPIO124 - -
DO8 GPIO125 - -
DO9 GPIO66 - -
DO10 GPIO131 - -
DO11 GPIO130 - -
DO12 GPIO63 - -
DO13 GPIO64 - -
DO14 GPIO26 - -
DO15 GPIO27 - -
DO16 GPIO25 - -
DO17 - - GPIO123
DO18 - - GPIO122
DO19 - - GPIO58
DO20 - - GPIO59
DO21 - - GPIO24
DO22 - - GPIO124
DO23 - - GPIO16
DO24 - - GPIO125
DO25 - GPIO123 -
DO26 - GPIO122 -
DO27 - GPIO58 -
DO28 - GPIO24 -
DO29 - GPIO59 -
DO30 - GPIO16 -
DO31 - GPIO124 -
DO32 - GPIO125 -
Table 4. HIL Digital Input signal routing
HIL Digital Input signal Launchpad 1 LaunchPad 2 LaunchPad 3
DI1 PWM1A - -
DI2 PWM1B - -
DI3 PWM2A - -
DI4 PWM2B - -
DI5 PWM3A - -
DI6 PWM3B - -
DI7 PWM4A - -
DI8 PWM4B - -
DI9 PWM5A - -
DI10 PWM5B - -
DI11 PWM6A - -
DI12 PWM6B - -
DI13 - PWM1A -
DI14 - PWM1B -
DI15 - PWM2A -
DI16 - PWM2B -
DI17 - PWM3A -
DI18 - PWM3B -
DI19 - PWM4A -
DI20 - PWM4B -
DI21 - PWM5A -
DI22 - PWM5B -
DI23 - PWM6A -
DI24 - PWM6B -
DI25 - - PWM1A
DI26 - - PWM1B
DI27 - - PWM2A
DI28 - - PWM2B
DI29 - - PWM3A
DI30 - - PWM3B
DI31 - - PWM4A
DI32 - - PWM4B

Figure 2: DO Enable swtiches

LaunchPad™ connector groups

The HIL TI uGrid Launchpad features three LaunchPad™ connector groups, each comprising of four 2x10 pin headers for TI LaunchPad™ boards with a pinout shown in Figure 3, Figure 4, and Figure 5 .

Figure 3: LaunchPad™ 1 connector group pinout

Figure 4: LaunchPad™ 2 connector group pinout

Figure 5: LaunchPad™ 3 connector group pinout

Note that, while various boards share the same pinout, the HIL TI uGrid Launchpad Interface was designed and tested only with the following LaunchPad™ boards in mind:

Power Supply

By default, all LaunchPad™ boards are powered via USB. With the HIL TI uGrid Launchpad Interface, these boards can be powered from HIL instead, thus enabling "standalone" operation.

Warning: Study the official schematic of the LaunchPad™ board carefully before making any changes. Before powering from HIL, disconnect and/or disable all USB power supplies present on the LaunchPad™ board itself, regardless of the USB cable connection.

Power selection is performed via two switches, labelled as "HIL POWER".

Figure 6: HIL POWER switch section location

Figure 7: HIL POWER switch section schematic

Measurement terminals

For easier access to the signals from the HIL setup, a total of 192 measurement terminal posts are provided on the HIL TI uGrid Launchpad Interface.

“Texas Instruments“, “TI“, and "LaunchPad™" are registered trademarks of Texas Instruments Incorporated in the United States of America, or other countries, or both.