Plexim plecs RT Box LaunchPad User manual

electrical engineering software
Plexim GmbH [e-mail] www.plexim.com
PLECS User Manual Version 3.4
RT Box LaunchPad-Nucleo Interface
User Manual June 2023

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Revision History:
HW rev. 1.0 First release
HW rev. 1.1 Enhanced board size and improved
legend print
RT Box LaunchPad-Nucleo Interface
© 2023 by Plexim GmbH
PLECS is a registered trademark of Plexim GmbH. Other product or brand
names are trademarks or registered trademarks of their respective holders.

Contents
Contents iii
1 Introduction 1
2 Interface Board Overview 3
LaunchPadHeaders .............................. 4
Nucleo-64BoardHeaders ........................... 6
OnboardVoltageSupply............................ 7
AnalogOutput.................................. 8
DigitalI/O .................................... 8
Connectors.................................... 9
3 Appendix 11
LAUNCHXL-F280039C Pin Map . . . . . . . . . . . . . . . . . . . . . . . 12
LAUNCHXL-F280049C Pin Map . . . . . . . . . . . . . . . . . . . . . . . 15
LAUNCHXL-F28069M Pin Map . . . . . . . . . . . . . . . . . . . . . . . 18
LAUNCHXL-F28377S Pin Map . . . . . . . . . . . . . . . . . . . . . . . . 21
LAUNCHXL-F28379D Pin Map . . . . . . . . . . . . . . . . . . . . . . . . 24
LAUNCHXL-F28027 Pin Map . . . . . . . . . . . . . . . . . . . . . . . . . 27
STM32G4x Nucleo-64 Pin Map . . . . . . . . . . . . . . . . . . . . . . . . 29
STM32F3x Nucleo-64 Pin Map . . . . . . . . . . . . . . . . . . . . . . . . 32

Contents
iv

1
Introduction
The PLECS RT Box is a powerful real-time simulator based on a Xilinx Zynq
system on a chip (SOC). With its digital and analog I/O signals, the RT Box is
well-equipped for hardware-in-the-loop (HIL) testing as well as rapid control
prototyping (RCP).
If employed for HIL testing, the RT Box typically emulates the power stage
of a power electronic system. The power stage could be a simple DC/DC con-
verter, an AC drive system or a complex multi-level inverter system. The de-
vice under test (DUT) is the control hardware connected to the RT Box. In
such a setup, the complete controller can be tested without the real power
stage.
To simplify the connection of external hardware and to provide convenient ac-
cess to the RT Box inputs and outputs, Plexim offers a set of RT Box acces-
sories.
The RT Box LaunchPad-Nucleo Interface described in this document fa-
cilitates a simple connection of the RT Box with the LaunchPad or Launch-
Pad XL development kits from Texas Instruments, and Nucleo-64 development
boards from STMicroelectronics. It enables the user to test control algorithms
implemented on TI C2000 and STM32 MCUs without developing their own
interface hardware. The pinout of the LaunchPad-Nucleo Interface board has
been optimized for the following boards:
TI C2000 LaunchPads:
• LaunchXL-F280039C
• LaunchXL-F280049C
• LaunchXL-F28069M
• LaunchXL-F28377S
• LaunchXL-F28379D
• LaunchXL-F28027

1Introduction
STM32 Nucleo-64 boards:
• STM32G4 Nucleo-64
• STM32F3 Nucleo-64
The LaunchPad-Nucleo Interface can also be used with other LaunchPad or
Nucleo-64 boards not listed above, provided that the board physically aligns
and connects with the header pins. Users will need to create their own pin
assignment table, similar to the ones shown in Section 3.
2

2
Interface Board Overview
The LaunchPad-Nucleo Interface board facilitates the connection between a
TI C2000 LaunchPad, or an STM32 Nucleo-64 board and the RT Box. Fig. 2.1
shows the top view of the board without any MCU boards attached.
Figure 2.1: Top view of RT Box LaunchPad-Nucleo Interface
Additionally, the board provides access to some of the analog outputs of the

2Interface Board Overview
RT Box via BNC connectors, and to unused digital input and output signals
via shrouded pin headers. For simple status communication with the RT Box,
the board features four sliding switches and four LEDs.
LaunchPad Headers
A TI C2000 LaunchPad can be attached to the interface board using the cor-
responding pin headers. The LaunchPad will extend beyond the edge of the
interface board. Fig. 2.2 shows the correct mounting position.
Figure 2.2: RT Box LaunchPad-Nucleo Interface with LaunchXL-F28069M
Tables 2.1 and 2.2 list the pin assignments of the LaunchPad headers and the
RT Box signals. NC denotes no connection.
A more detailed table including the available processor functions at each pin
for the supported LaunchPads can be found in the appendix.
4

LaunchPad Headers
RT Box J1 J3 RT Box
+3.3 V 1 21 NC
NC 2 22 GND
DO-0 3 23 AO-0
DO-1 4 24 AO-1
DO-2 5 25 AO-2
NC 6 26 AO-3
DI-24 7 27 AO-4
DI-25 8 28 AO-5
DI-26 9 29 AO-6
DO-27 10 30 AO-7
RT Box J4 J2 RT Box
DI-0 40 20 GND
DI-1 39 19 DI-6
DI-2 38 18 DI-7
DI-3 37 17 NC
DI-4 36 16 RESET (DO-25)
DI-5 35 15 DI-27
DO-4 34 14 DO-26
DO-5 33 13 DO-6
NC 32 12 DO-7
NC 31 11 DO-3
Table 2.1: LaunchPad header pins - J1, J3, J4, J2
RT Box J5 J7 RT Box
+3.3 V 41 61 NC
NC 42 62 GND
DO-16 43 63 AO-8
DO-17 44 64 AO-9
DO-18 45 65 AO-10
NC 46 66 AO-11
NC 47 67 AO-12
DO-19 48 68 AO-13
NC 49 69 AO-14
NC 50 70 AO-15
RT Box J8 J6 RT Box
DI-16 80 60 GND
DI-17 79 59 DI-22
DI-18 78 58 DI-23
DI-19 77 57 NC
DI-20 76 56 NC
DI-21 75 55 DO-20
NC 74 54 DO-21
NC 73 53 DO-22
NC 72 52 DO-23
NC 71 51 DO-24
Table 2.2: LaunchPad header pins - J5, J7, J8, J6
5

2Interface Board Overview
Nucleo-64 Board Headers
An STM32 Nucleo-64 development board can be attached to the interface
board using the corresponding pin headers, as shown in Fig. 2.3.
Figure 2.3: RT Box LaunchPad-Nucleo Interface with Nucleo-G474RE
Tables 2.3 and 2.4 list the pin assignments of the Nucleo-64 board headers
and the RT Box signals. NC denotes no connection.
A more detailed table including the available processor functions at each pin
for the supported Nucleo-64 boards can be found in the appendix.
6