dm00285839

UM2051
User manual
Getting started with the STM32 Nucleo pack
for USB Type-C™ and Power Delivery
Introduction
The STM32 Nucleo pack for USB Type-C™ and Power Delivery (P-NUCLEO-USB001) is a
kit based on a NUCLEO-F072RB board and on a USB Type-C™ Power Delivery expansion
board (MB1257). The expansion board features two DRP USB Type-C™ ports with a
discrete Analog Front-End PHY for USB Type-C™ configuration and management. A
complete and certified USB Power Delivery middleware stack, compliant with the USB
Type-C™ 1.2 and the Power Delivery 2.0 specifications, running on the STM32F072 MCU,
provides the means to control the two USB Type-C™ ports and allows the communication
over CC lines using the Power Delivery communication protocol (for all the details refer to
the USB Type-C™ Power Delivery on STM32F0 Series embedded software expansion for
STM32Cube databrief (DB2957) at the www.st.com website).This document describes the
hardware environment to build the system and to run an application based on the
P-NUCLEO-USB001 pack.
Figure 1. P-NUCLEO-USB001
June 2016
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www.st.com
1
Contents
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Contents
1
Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1
System architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2
The P-NUCLEO-USB001 demonstration . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3
Configuration setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4
2
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1.3.1
Standalone demonstration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.3.2
Other demonstration with external hardware . . . . . . . . . . . . . . . . . . . . . 11
Command Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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List of tables
List of tables
Table 1.
Table 2.
Table 3.
Description of connectors, jumpers and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Description of the CLI commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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List of figures
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List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
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P-NUCLEO-USB001. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
P-NUCLEO-USB001 system architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MB1257 USB-C Power Delivery expansion board and NUCLEO-F072RB assembled . . . . 8
MB1257 connectors, jumpers and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Screenshot of the CLI and list of available commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
CLI when the cable is unplugged on PD port (PORT_0) . . . . . . . . . . . . . . . . . . . . . . . . . . 12
CLI when PD PORT_0 is plugged to the USB Type-C only PORT_1. . . . . . . . . . . . . . . . . 13
CLI when PD port (PORT_0) is connected to a Consumer . . . . . . . . . . . . . . . . . . . . . . . . 13
CLI when PD port (PORT_0) is connected to a Provider . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CLI after a request to change the power profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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Getting started
1
Getting started
1.1
System architecture
The STM32 Nucleo pack for USB Type-C™ and Power Delivery is composed of two main
blocks (see Figure 2):
Note:
•
A control block: the NUCLEO-F072RB board where the stack is running
•
A Type-C interface: the MB1257 expansion board
A certified USB Type-C full-featured cable is provided in the kit.
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Figure 2. P-NUCLEO-USB001 system architecture
Expansion Board
ST morpho connectors
User LEDs
CC AFE and
VCONN Switch Port 0
CC AFE and
VCONN Switch Port 1
Local Power
Management
Extension
Connector Port 1
Extension
Connector Port 0
VBUS Current/Voltage
sensing Port 1
Type-C
Receptacle Port 1
VBUS Current/Voltage
sensing Port 0
Type-C
Receptacle Port 0
VBUS Port 0 Switch
and discharge
VBUS Port 1 Switch
and discharge
Connector for
VBUS Load Port 1
Connector for
VBUS Load Port 0
Device
D
eDevice
vice P
Policy
oPolicy
lic y
Manager
Policy Engine
Protocol Layer
Physical Layer
(4b5b, CRC,
SOP, BMC)
Nucleo-F072RB board
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1.2
Getting started
The P-NUCLEO-USB001 demonstration
The P-NUCLEO-USB001 is a complete hardware development platform to learn and
develop solutions based on USB Type-C™ and USB Power Delivery technologies.
The middleware stack (X-CUBE-USB-PD) offers a set of dedicated API and configuration
templates to cover different topologies (Provider, Consumer, DRP,...) and customizations to
easily develop USB-C and Power Delivery applications. For more details refer to the STM32
Nucleo pack for USB Type-C™ and Power Delivery with the Nucleo-F072RB board User
manual (UM2050) at the www.st.com website.
Thanks to the two Type-C ports available on the USB-C Power Delivery expansion board,
the firmware example embedded in the STM32F072RBT6 MCU of the NUCLEO-F072RB
board, provides a simple demonstration that the user can run without any additional
material, showing the flexibility of Type-C with its reversible plug orientation, cable direction,
and the role assumed by each port.
User can build other demonstrations with external tools, using the same firmware
embedded in the STM32F072RBT6 MCU of the NUCLEO-F072RB board.
1.3
Configuration setup
To run the embedded demonstration, follow the hardware configuration steps shown below:
1.
The MB1257 board must be stacked on a NUCLEO-F072RB board through the ST
morpho connector. There is only one position allowed for this connection, the one
where the stacked board MB1257 does not cover the two blue and black push-buttons
on the NUCLEO-F072RB board (see the blue button B1 and black button B2 in the
Figure 3).
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Figure 3. MB1257 USB-C Power Delivery expansion board and NUCLEO-F072RB
assembled
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The NUCLEO-F072RB board included in the pack, has a different configuration comparing
to the default one. The main differences are listed below:
–
Solder bridges SB48, SB49, SB62, SB63 are closed
–
Solder bridges SB13, SB14, SB15, SB21 are open
–
0 Ω resistors R34, R36 are removed
2.
On NUCLEO-F072RB board, verify jumper settings: JP1 must be open; JP5 (PWR)
must be closed on U5V and JP6 must be closed (IDD).
3.
On the MB1257 expansion board, verify jumper settings: J500 must be closed, JP501
must be open. Refer to Figure 4.
4.
Connect the NUCLEO-F072RB board to a PC with a USB Type-A to Mini-B cable (not
provided) to power the system and to interact with the demonstration
Figure 4. MB1257 connectors, jumpers and LEDs
Table 1. Description of connectors, jumpers and LEDs
Part reference
Description
CN7
ST morpho connector
CN10
ST morpho connector
CN2
I2C connector
CN3
UART connector
CN4
Power connector (on bottom side)
CN11
VBUS Load PORT_0
CN12
VBUS Load PORT_1
JP100
Supply VBUS selection only for consumer role
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Table 1. Description of connectors, jumpers and LEDs (continued)
Part reference
Description
J500
VBUS source for PORT_0(1)
JP501
VBUS source for PORT_1(1)
D200 (Blue LED)
Role indication for PORT_1
D201 (Green LED)
VBUS indication for PORT_1
D202 (Orange LED)
CC line indication for PORT_1
D203 (Blue LED)
Role indication for PORT_0
D204 (Green LED)
VBUS indication for PORT_0
D205 (Orange LED)
CC line indication for PORT_0
D206 (Blue LED)
3.3V power
1. It is allowed to use the 5 V from NUCLEO-F072 as VBUS, when no external power supply is available and
only for Provider role. It is used mainly for demonstration purpose. If an external power supply is
connected the jumper must be left open.
Note:
The value of the integrated resistor Rp is 4.7 kΩ at 3.3 V to advertise current capability of
3 A at 5 V. User has to change it according to his power supply capabilities.
For more details refer to STM32 Nucleo pack for USB Type-C™ and Power Delivery with
the Nucleo-F072RB board User manual (UM2050) at the www.st.com website.
1.3.1
Standalone demonstration
The PORT_0 is configured as DRP (Provider/Consumer), while PORT_1 offers only Type-C
port management and it is configured as Consumer.
PORT_0 will switch from one role to the other each four seconds. The role will be
highlighted by the blue LED D203 blinking one or twice for Provider or Consumer role
respectively.
Once the two Type-C ports of the expansion board are connected together by the Type-C to
Type-C cable, the demonstration shows the cable attachment/detachment operation and
orientation mechanism by LEDs blinking.
After the procedure described in Section 1.3: Configuration setup, the following actions
must be accomplished to run the embedded demonstration:
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1.
Connect the two Type-C receptacles on the expansion board using the USB Type-C
cable (provided).
2.
Blue LED (D203) will blink once when the PORT_0 is working as Provider, while it will
blink twice when the port is working as Consumer. Blue LED (D200) will blink twice
because it is linked to PORT_1 that is configured as Consumer only.
3.
The two orange LEDs (D205 and D202) will blink once or twice indicating the CC line
used respectively for PORT_0 and PORT_1. Changing the cable insertion, the LEDs
will blink according to the cable orientation.
4.
Green LEDs (D201 and D204) will blink when the port, working as Provider, is
supplying the Port Partner or, working as Consumer, is sinking power.
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1.3.2
Getting started
Other demonstration with external hardware
When connecting the Type-C PORT_0 configured as DRP (Provider/Consumer) to an
external Port Partner, the user can see the cable attachment/detachment, the orientation
and role configuration. Take care that in case of Provider role the exposed power profiles
are dummy roles.
After execution of the procedure described in Section 1.3: Configuration setup, the following
actions must be accomplished to run demonstration on PORT_0:
1.4
1.
Connect CN3 of NUCLEO-F072RB with CN3 of MB1257 expansion board through the
two female wires included in the package, respecting the numeration (1-1, 2-2).
2.
Insert one plug of the included Type-C to Type-C cable on PORT_0 of the expansion
board, that is configured as DRP (Provider/Consumer).
3.
Connect the other plug of the USB Type-C Cable to an external Port Partner.
4.
Blue LED D203 blinks once when the PORT_0 is working as Provider, while it blinks
twice when it is working as Consumer.
5.
Orange LED D205 blinks once or twice according to the selected CC line on PORT_0.
6.
Green LED D204 blinks when the port, working as Provider, is supplying the Port
Partner or when the port, working as Consumer, is sinking power. Whichever role has
the port, this led turns on whenever an explicit contract has been negotiated.
7.
In case of Provider role, after providing the 5 V on VBUS, it starts to advertise source
capabilities related to four dummy profiles (5 V, 9 V, 15 V, 20 V).
8.
The user can interact with the application by means of a serial communication tool as
explained in Section 1.4.
Command Line Interface
The Command Line Interface (CLI) allows the user to get the status of the Power Delivery
application running on PORT_0 and to act on it through a serial communication.
When connecting through the two female wires included in the package, CN3 of NUCLEOF072RB board with CN3 of the MB1257 expansion board, respecting the numeration (1-1,
2-2), user can connect the NUCLEO-F072RB board to the PC using the virtual COM port
with a standard serial terminal software. The configuration shall be:
•
Baudrate: 115200
•
Data bit: 8n
•
Stop bit: 1
•
Hardware Flow Control: None
Through a set of commands, CLI allows the user to know the profiles available in the system
and the status and to request a different profile (only when acting as Consumer).
At the startup of the board a “welcome message” is shown in the terminal. By typing “help”
user can get the list of the supported commands (see Table 2 and Figure 5).
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Figure 5. Screenshot of the CLI and list of available commands
Table 2. Description of the CLI commands
Command
Parameter
Description
help
none
To show the list of the available commands.
welcome
none
To print out the welcome message and copyright information.
profiles
none
To show the available power profiles.
status
none
To retrieve information about the PD port and the status.
request
Profile number
To change the power profile on PD port (in case of Consumer).
When acting as Provider if the cable is unplugged the “profiles” command shows four
dummy power profiles and the “status” indicates that it is working in dual-role mode (see
Figure 6).
Figure 6. CLI when the cable is unplugged on PD port (PORT_0)
Connecting PD port (PORT_0) to USB-C port (PORT_1) and typing again the status
command, the user can get information about cable orientation (CC1 or CC2) and contract
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status as shown in Figure 7 (in this configuration PORT_1 is only Type-C and not Power
Delivery).
Figure 7. CLI when PD PORT_0 is plugged to the USB Type-C only PORT_1
If a USB Type-C and Power Delivery consumer is plugged in PORT_0, the demonstration
acts as Provider and sends the source capabilities according to the four “dummy” power
profiles (5 V, 9 V, 15 V, 20 V at 3 A).
The “status” command shows the dummy power profiles requested by the Consumer and
the cable orientation, as shown in Figure 8.
Figure 8. CLI when PD port (PORT_0) is connected to a Consumer
If a USB Type-C and Power Delivery Provider is plugged in PORT_0, the demonstration will
act as Consumer.
The “profiles” command shows the list of the power profiles received from the Port Partner
and the “status” command shows the requested power profile and the cable orientation (see
Figure 9).
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Figure 9. CLI when PD port (PORT_0) is connected to a Provider
The “request” command changes the power profile according to the specified parameter
and start again the negotiation between the Consumer and the Provider for the selected
power, as shown in Figure 10.
Figure 10. CLI after a request to change the power profile
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Revision history
Revision history
Table 3. Document revision history
Date
Revision
02-Jun-2016
1
Changes
Initial release.
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