Texas Instruments Delfino TMS320F28377D controlCARD Technical manual

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Delfino TMS320F28377D controlCARD R1.1
Information Guide
Version 1.5 –May 2014 C2000 Systems and Applications Team
Fig 1: TMDSDOCK28377D Experimenter’s Kit
1 Introduction
The Delfino F28377D controlCARD (TMDSCNCD28377D) from Texas Instruments (TI) provides
a great way to learn and experiment with the F2837x device family within TI’s C2000 family of
microcontrollers (MCUs). This 180-pin controlCARD is intended to provide a well-filtered robust
design which is capable of working in most environments. This document goes over the hardware
details of the F28377D controlCARD and explains the functions, locations of jumpers, and
connectors present on the board.
Each controlCARD comes with a “Hardware Developer’s Kit”, a full set of files necessary to
evaluate/develop with a C2000 device. These files include:
Schematics –Designed in Mentor PADS Logic
Bill of Materials (BOM)
Layout PCB files –Designed in Mentor Layout
Gerber files
NOTE: this kit is designed to explore the functionality of the F2837x microcontroller. Even though
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 final customer’s system.

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2 Errata
Current revision of controlCARD as of 9-May-2014: PCB R1.1, ASSY rev A (R1.1a)
2.1Warnings/Notes/Errata –
Notes on all controlCARDs:
1. The F28377D controlCARD supports USB host/device connectivity. However, the micro-
USB port, J8, is not isolated from the board ground. Care should be taken when this
controlCARD is being used in a high power application and this USB port is also being
used. Note that external USB isolation buffers may be required for these types of
applications.
2. The F28377D Experimenter’s 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 5V @ 500mA a computer’s USB port can provide (<0.01% of use cases). This
is especially true when additional circuitry has been added to the Docking Station.
In such cases, it is recommended to use an external 5V power supply (2.5mm inner
diameter x 5.5mm outer diameter) and plug it into J1. A compatible supply could be the:
Phihong PSAC05R-050(P)-R-C2 + Phihong RPBAG
Warnings about R1.0a revision controlCARDs:
3. Among many other changes made, the pinout of the R1.1 F28377D controlCARD is
different from the pinout of the pre-release R1.0a controlCARDs. Please refer to the kit
documentation and schematics when porting code.
Warnings about R1.1 and earlier controlCARDs:
4. The F28377D MCU is not 5V tolerant. Because of this some additional protection is
needed between the USB port J8 and the MCU. In particular, resistor R72 should
change from 0R0 to 100K and resistor R74 should change from 0R0 to 10K. This will
effectively limit the voltage/current received by the MCU pin. This issue was fixed in
R1.1a and later revision controlCARDs.
5. If used, the crystal X1 should be acceptable in most applications. However, it may fail
under some worst case conditions. To guarantee proper operation, please see the
F28377x Silicon Errata guide. This issue was fixed in R1.1a and later revision
controlCARDs.
6. Several name changes were made to pins on the device and are now reflected in R1.1a
controlCARD documentation. No functionality was affected.

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3 Getting Familiar with the controlCARD
3.1 F28377D controlCARD Features
Delfino F28377D Microcontroller –High performance C2000 microcontroller is located
on the controlCARD.
180pin HSEC8 Edge Card Interface –Allows for compatibility with all of C2000’s 180pin
controlCARD based application kits and controlCARDs. Compatibility with 100pin
controlCARDs can be accomplished using the TMDSADAP180TO100 adapter card (sold
separately).
Built-in Isolated JTAG Emulation –An xds100v2 emulator provides a convenient
interface to Code Composer Studio without additional hardware. Flipping a switch
allows an external JTAG emulator to be used.
Connectivity –The controlCARD contains connectors that allow the user to experiment
with USB, a microSD card, and isolated UART/SCI with the F2837x MCU.
Key Signal Breakout –Most GPIO, ADC and other key signals routed to hard gold
connector fingers.
Robust Power Supply Filtering –Single 5V input supply powers an on-CARD 3.3V
LDO. All MCU inputs are then decoupled using LC filters near the device.
ADC Clamping –ADC inputs are clamped by protection diodes.
Anti-Aliasing Filters –Noise filters (small RC filters) can be easily added on several
ADC input pins.
3.2 Assumed Operating Conditions
This kit is assumed to run at standard room conditions. The EVM should run at approximately
Standard Ambient Temperature and Pressure (SATP) with moderate-to-low humidity.

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3.3 Using the controlCARD
In order for the controlCARD to work, the controlCARD’s MCU must be powered. This is most
often done by inputting 5V through the HSEC connector via an accompanying baseboard. For
example, if using a Docking Station baseboard, 5VDC should be input into the Docking Station’s
J1 or J17 and then SW1 will need to be toggled to the appropriate position.
Optionally, the MCU could also be powered via the micro-USB connector on the controlCARD.
Based on the way that the controlCARD will be used, additional hardware settings will be
necessary. See the table below:
Debug using CCS
and the on-card
xds100v2 emulator
Debug using CCS and
an external emulator
via the baseboard
Standalone
(Boot from FLASH or
other boot mode)
A:SW1
(controlCARD)
Position 1: ON (up)
Position 1: OFF (down)
Position 1: OFF (down)
A:J1
(controlCARD)
Connect a mini USB
cable between A:J1
and your computer.
In CCS, use this target
configuration:
TMS320F28377D
device with an
xds100v2 emulator.
---
---
Baseboard’s
JTAG connector
(J2 on the
Docking Station
baseboard)
---
Connect an external
emulator.
---
Code Composer Studio (CCS) is an Integrated Development Environment (IDE) used to debug
and develop software for the C2000 series of MCUs. It can be downloaded from the following link:
http://processors.wiki.ti.com/index.php/Download_CCS
For users new to C2000’s F28x7x series of devices and CCS, TI’s Technical Training
Organization provides several workshops (online and in-person) that may be helpful:
http://processors.wiki.ti.com/index.php/C2000_32-bit_Real-Time_MCU_Training
http://processors.wiki.ti.com/index.php/Hands-On_Training_for_TI_Embedded_Processors

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The following PDF documents are provided to describe where each of the F2837x MCU’s pins
will appear on the controlCARD connector/Docking Station:
TMDSCNCD28377D_180cCARD_pinout_R1_1 –tells where each MCU pin will go on the HSEC
controlCARD connector or the 120/180-pin controlCARD Docking Station.
TMDSCNCD28377D_100DIMmap_R1_1 –tells where each MCU pin will go to on the DIM100
controlCARD connector or the DIM100 Docking Station. This assumes that the
TMDSADAP180TO100 adapter card is used.
More information on the controlCARD/Docking Station can be found at the following locations:
\controlSUITE\development_kits\~controlCARDs\TMDSCNCD28377D_vX.X\
\controlSUITE\development_kits\~ExperimentersKits\120or180pin_HSEC_DockingStn-
HWdevPkg_v1_0\
3.4Experimentation Software
All key examples for the F28377D MCU can be found within controlSUITE at:
\controlSUITE\device_support\f2837xD\
This example software package includes many projects which allow the user to experiment with
the ADC, PWM, and other C2000 peripherals.

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4 Special Notes on Connectivity
4.1 xds100v2 Emulator and SCI/UART Connectivity
The F28377D controlCARD provides emulation and USB-to-UART adapter functionality on the
controlCARD. This allows for a convenient method to debug and demo the F2837x MCU.
Note that the FTDI chip, its support circuitry, and associated isolation components are placed in
Macro A, the left section of the controlCARD. Each of these components contains an additional A
within the component reference designator (ie A:R2 for resistor 2 in Macro A).
Each F28377D controlCARD’s xds100v2 is programmed with a fixed serial number. If a debug
session needs to involve 2 or more F28377D controlCARD, each controlCARDs will need have a
unique serial number and some will need to be reprogrammed. See:
http://processors.wiki.ti.com/index.php/XDS100#Q:_Can_I_change_the_serial_number_on_my_X
DS100v2.3F
The configuration of the switches on A:SW1 determine whether the on-board emulator is active,
whether an external emulator can be used, or whether the device will boot from
FLASH/peripherals. See Table 1.
Fig2: xds100v2 Emulation circuitry and isolation circuitry is denoted by A:

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5 Hardware References
On the following pages, Table 1 shows the various connections available on the board. Fig 3,
below, illustrates the location of many of these components on the board:
Fig3: Key components on the controlCARD
U1 - C2000 Delfino
F28377D
Microcontroller
A:SW1 –Isolated
Emulation and UART
communication Enable
Switch
J8 –USB host/device
connector
U5 - uSD card
connector slot
A:J1 –USB
emulation/UART
connector
SW2 –External
VREFHI Disable
Switches for ADC
SW1 –Boot Mode
Switch
J2-J7 –USB PHY
Connection
Enable Jumpers
SW3 –ADC VREFHI
Control Switch for
ADC A & B
SW4 –ADC VREFHI
Control Switch for
ADC C & D

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Connectors
A:J1
Emulation/UART connector - USB mini A connector used to provide
xds100v2 emulation and USB-to-UART(SCI) communication through
FTDI logic. A:SW1 determines which connections are enabled to the
MCU.
U5
SD Micro card slot –connects to MCU via SPI
J8
USB connector –USB micro AB connector supports USB 2.0 host/device
Jumpers
J2-J7
USB PHY connection enable/disable jumpers –
All jumpers up –The MCU will be connected to the USB PHY on
the controlCARD via GPIOs 42, 43, 46, 47, 120, and 121.
All jumpers down –The MCU will not connect to the USB PHY
and all signals will instead go through the 180pin controlCARD
connector.
LEDs
LD1
Turns on when the controlCARD is powered ON (green)
LD2
Controlled by GPIO-31 with negative logic (red)
LD3
Controlled by GPIO-34 with negative logic (red)
A:D2
Turns on when ISO JTAG logic is powered on (green)
A:D3
JTAG/UART RX toggle indicator (blue)
A:D4
JTAG/UART TX toggle indicator (blue)
Resistors and Capacitors
R42, R43
Alternate Reference Configuration Resistors:
These resistors allow the user to choose whether the alternate reference
for the ADCs will be given by:
If R42 is populated & R43 is unpopulated -
A precision 3.0V reference
If R42 is unpopulated & R43 is populated -
The reference will be given by pin 45 of the HSEC controlCARD
connector. This will presumably allow the baseboard to provide
the desired voltage reference.
R30-R41, R44-R55
and
C19-C42
Optional RC input filter for all ADC inputs

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Switches (default position in BOLD)
SW1
Boot Mode Switch:
Controls the Boot Options of the F2837x device. See the device
datasheet for more information. (0 is down, 1 is up)
Mode #
Switch
Position 1
(GPIO-72)
Switch
Position 2
(GPIO-84)
Boot from
00
0
0
Parallel I/O
01
0
0
Boot from SCI
02
0
1
Wait Boot Mode
03
1
1
Get Mode (Flash by default)
SW2
External VREFHI Disable Switches for ADC:
This switch determines which ADC voltage reference (VREFHI) inputs will
be connected to external references.
Each Switch (leftmost switch is for ADC-A, rightmost is for ADC-D, etc):
In the down position, the external reference to the ADC will be
disabled. This configuration should not be used.
In the up position, the respective ADC will be configured to use
an external voltage reference chosen by SW3 or SW4.
SW3
ADC VREFHI Control Switch for ADC modules A & B:
Switch 1 (lower switch) –VREFHI Control Switch for ADC module A:
In the left position –If ADC-A is configured to use an external
reference via SW2, the ADC will be referenced to the alternate
reference chosen by R42/R43 (see above).
In the right position –If ADC-A is configured to use an external
reference via SW2, the ADC will be referenced to a precise 3.3V
reference located on the controlCARD.
Switch 2 (upper switch) –VREFHI Control Switch for ADC module B:
In the left position –If ADC-B is configured to use an external
reference via SW2, the ADC will be referenced to the alternate
reference chosen by R42/R43 (see above).
In the right position –If ADC-B is configured to use an external
reference via SW2, the ADC will be referenced to a precise 3.3V
reference located on the controlCARD.

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SW4
ADC VREFHI Control Switch for ADC modules C & D:
Switch 1 (lower switch) –VREFHI Control Switch for ADC module C:
In the left position –If ADC-C is configured to use an external
reference via SW2, the ADC will be referenced to the alternate
reference chosen by R42/R43 (see above).
In the right position –If ADC-C is configured to use an external
reference via SW2, the ADC will be referenced to a precise 3.3V
reference located on the controlCARD.
Switch 2 (upper switch) –VREFHI Control Switch for ADC module D:
In the left position –If ADC-D is configured to use an external
reference via SW2, the ADC will be referenced to the alternate
reference chosen by R42/R43 (see above).
In the right position –If ADC-D is configured to use an external
reference via SW2, the ADC will be referenced to a precise 3.3V
reference located on the controlCARD.
A:SW1
Isolated emulation & UART communication enables:
Switch 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.
Switch Position 2 –ISO UART communication enable:
ON –The C2000 MCU’s GPIO-28 (and pin76 of the 180pin
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 pin76 of the
connector will be limited.
OFF –The C2000 MCU will NOT be connected to the FTDI USB-
to-Serial adapter. Pin76 of the 180pin controlCARD connector
will be directly connected to GPIO-28.
Table 1: Hardware References