TMS320F280039C controlCARD Information Guide

1 F280039C controlCARD Information Guide

The F280039C controlCARD (TMDSCNCD280039C) from Texas Instruments (TI) provides a great way to learn and experiment with F28003x devices. The F28003x devices are members of TI’s C2000™ family of microcontrollers (MCUs). This 120-pin controlCARD is intended to provide a well-filtered robust design that is capable of working in most environments. This document provides the hardware details of the F280039C controlCARD and explains the functions, locations of jumpers, and connectors present on the board.

Trademarks

C2000™ and Code Composer Studio™ are trademarks of Texas Instruments.

All trademarks are the property of their respective owners.

1 Introduction

Figure 1-1 F280039C controlCARD

Each controlCARD comes with a Hardware Developer’s Kit, which is a full set of files necessary to evaluate and develop with a C2000 device. These files include:

Schematics – Designed in Altium
Bill of Materials (BOM)
Layout PCB files - Designed in Altium
Gerber files

The Hardware Developer's Kit for the controlCARD can be found in the C2000Ware at the following location:

<install directory>\c2000\C2000Ware_x_xx_xx_xx\boards\controlCARDs\TMDSCNCD280039C\Rx_x

Note: This kit is designed to explore the functionality of the F28003x microcontrollers. The controlCARD can be treated as a good reference design; it is not intended to be a complete customer design. Full compliance to safety, EMI/EMC, and other regulations are left to the designer of the customer’s system.

2 Hardware Quick Setup Guide

The controlCARD can be completely powered and operated from the USB-C connector. In this stand-alone mode the on-board isolated power supply will provide power to the F280039C device; no additional hardware is required. Optionally, an external 5-V supply can be provided to power the F280039C device. For a detailed explanation of the hardware configuration, see Section 4.3.

WARNING:

When the controlCARD is used in a high-voltage setup, it is the user’s responsibility to confirm that the voltages and isolation requirements are identified and understood prior to energizing the board or simulation. When energized, the controlCARD or components connected to the controlCARD should not be touched. Furthermore, the capacitor C7:A should be removed to minimize the possibility of leakage current flowing across the isolation barrier of the controlCARD.

Configuration 1: Stand-alone

Connect a USB-C cable to J1:A.
Connect the other end of the USB cable to a USB2.0/USB3.x port.
LED1:A and D3 on the controlCARD will illuminate.

Configuration 2: External 5-V supply

Insert the TMDSCNCD280039C controlCARD into a TMDSHSECDOCK, or other compatible docking station.
Connect a USB-B "mini" connector to J17 on the TMDSHSECDOCK.
Flip S1 to the "USB-ON" position. The controlCARD will automatically switch to the external 5-V supply.
LED1:A and D3 on the controlCARD will illuminate.

Note:

The TMDSCNCD280039C controlCARD automatically switches to the external 5-V supply when present. No additional configuration is required.

3 Errata

Current revision of controlCARD as of 5/3/2021: PCB rev - E1, ASSY rev - none.

3.1 Warnings, Notes, and Errata

The TMDSCNCD280039C evaluation kit ships with a USB cable and is designed to be powered via USB. However, in extreme cases, the board/controlCARD may require more power than the 5 V @ 500 mA (USB 3.0 - 900 mA) that a computer’s USB port can provide. This is especially true when additional circuitry has been added to the TMDSHSECDOCK. In such cases, it is recommended to use an external 5-V power supply (2.5-mm inner diameter x 5.5-mm outer diameter) and plug it into J1 on the TMDSHSECDOCK. A compatible supply is:

Phihong PSAC05R-050(P)-R-C2 + Phihong RPBAG

5-V power suppy instabilty may lead to device resets

The 5-V rail on the TMDSCNCD280039C controlCARD can be powered from an on-board USB connector or from a baseboard like the TMDSHSECDOCK. A switch device on the controlCARD automatically selects the 5-V input power source for the controlCARD without the need for user configuration.

A loss of power or glitching on the baseboard 5-V power source can cause the automatic switch to disconnect from both power sources for several milliseconds. This momentary loss of power may cause a brownout condition on the MCU, triggering a device reset. To avoid this condition, ensure that the baseboard power supply remains at 0 V or 5 V during code execution.