SPRUIR3B September   2019  – June 2022

 

  1.   F280025C controlCARD Information Guide
  2.   Trademarks
  3. 1Introduction
  4. 2Hardware Quick Setup Guide
  5. 3Errata
    1. 3.1 Warnings, Notes, and Errata
    2. 3.2 Warnings About Specific controlCARD Revisions
  6. 4Getting Familiar With the controlCARD
    1. 4.1 F280025C controlCARD Features
    2. 4.2 Assumed Operating Conditions
    3. 4.3 Using the controlCARD
    4. 4.4 Experimentation Software
  7. 5Special Notes
    1. 5.1 XDS100v2 Emulator and SCI (UART) Connectivity
    2. 5.2 Clocking Methodology
    3. 5.3 Evaluation of the Analog-to-Digital Converters (ADCs)
  8. 6Hardware References
  9. 7Revision History

6 Hardware References

GUID-D386C3C0-ADD8-4C45-9754-BE238700AB00-low.pngFigure 6-1 Key Components on the controlCARD - Front
GUID-217B9FAD-5453-45E0-A975-16A1D39D8AE4-low.pngFigure 6-2 Key Components on the controlCARD - Back
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 C26:A should be removed to minimize the possibility of leakage current flowing across the isolation barrier of the controlCARD.

Table 6-1 Hardware Connections
Connectors
J1:AEmulation/UART connector - USB mini A connector used to provide XDS100v2 emulation and USB-to-UART (SCI) communication through FTDI logic. S1:A determines which connections are enabled to the MCU.
J1FSI Header – Updated over previous designs. This header is now keyed, contains 2 data lines, and has 3.3 V power.
LEDs
D2:ATurns on when ISO JTAG logic is powered on (green)
D3:AJTAG/UART RX toggle indicator (blue)
D4:AJTAG/UART TX toggle indicator (blue)
D1Controlled by GPIO–31 with negative logic (red)
D2Controlled by GPIO–34 with negative logic (red)
D3Turns on when the controlCARD is powered ON (green)
Resistors and Capacitors
R23-R38ADC RC input filter resistors: Series resistors which can be used to create an RC filter on the ADC's input.
C29-C44ADC RC input filter capacitors: Optional capacitors, not populated by default, for the ADC input's RC filters.
Switches
S1:A Isolated emulation and UART communication enable switches:
S1:A Position 1 – JTAG Enable:
  • ON – All signals between the XDS100v2 emulation logic and the MCU will be connected. This setting is valid when the MCU is being debugged or programmed via the on-card XDS100v2 emulator.
  • OFF – The XDS100v2 emulation logic will NOT be connected to the MCU. This setting is valid when the device will boot from FLASH, boot from a peripheral directly, or when an external JTAG emulator will be used.

S1:A Position 2 – ISO UART communication enable:

  • ON – The C2000 MCU’s GPIO-28 (and pin 76 of the 180-pin controlCARD connector) will be coupled to the FTDI’s USB-to-Serial adapter. This allows UART communication to a computer via the FTDI chip. However, in this position, GPIO-28 will be forced high by the FTDI chip. Functionality of pin 76 of the connector will be limited.
  • OFF – The C2000 MCU will NOT be connected to the FTDI USB-to-Serial adapter. Pin 76 of the 180-pin controlCARD connector will be directly connected to GPIO-28.
S1 QEP and SPIB selection switch: This switch allows GPIO24 and GPIO25 to be routed to one of two locations on the HSEC connector.
S2 QEP and SPIB selection switch: This switch allows GPIO26 and GPIO27 to be routed to one of two locations on the HSEC connector.
S3 SPIA or external crystal selection switch: This switch enables the use of SPIA or an external crystal. This methodology was required to support the full range of TI's baseboards and is not recommended in a production system. For full details, see Section 5.2.
S4 Boot Mode Switch: Controls the Boot Options of the F280025C device, see Table 6-2. For a full description, see the device-specific data sheet.
S5 Analog Configuration Switch:
S4 Position 1 (left switch) –

ADC channel A8/C11 HSEC pin selection

  • Upward position – Channel A8/C11 goes to HSEC pin 34
  • Downward Position – Channel A8/C11 goes to HSEC pin 30
Position 2 (right switch) - ADC voltage reference selection.
  • Upward position – Internal voltage reference
  • Downward Position – External voltage reference
Note that additional software configuration is required to enable the ADC's internal or external voltage reference.
Test Points
TP1:A Emulator 5.0 V input: This power domain is isolated from the other 5.0V domain.
TP2:A Emulator 3.3 V input: This power domain is isolated from the other 3.3 V domains.
TP3:A Emulator ground
TP1 HSEC 5.0 V input: 5.0 V input provided to the 3.3 V voltage regulator to create the unfiltered 3.3 V power.
TP2 Unfiltered 3.3 V: Provides power to the F280025C device.
TP3 MCU 1.2 V: VDD 'core supply' to the F280025C device. Note that this controlCARD has been designed to use the internal voltage regulator.
TP4 Device Ground
TP5 XRSn of F280025C device: Connected to the undervoltage output from the 3.3 V voltage supervisor.
TP6 Overvoltage output: Connected to the overvoltage output from the 3.3 V voltage supervisor.
Note:

On the front of the controlCARD test points are indicated by their TPx number.

On the back of the controlCARD test points are indicated by their signal.

Table 6-2 S4, Bootmode Selection Table
ModeSwitch Position 1(left switch, GPIO-24)Switch Position 2 (right switch, GPIO-32)Boot From
000 (down)0 (down)Parallel I/O
011 (up)0 (down)SCI/Wait Boot
020 (down)1 (up)CAN
031 (up)1 (up)Flash/USB