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.