STR910-EVAL STMicroelectronics, STR910-EVAL Datasheet - Page 17

• Manufacturer Part Number: STR910-EVAL
• Description: BOARD EVAL FOR STR910 FAMILY
• Manufacturer: STMicroelectronics
• Type: MCUr

Specifications of STR910-EVAL

• Contents: STR910F Evaluation Board, LCD, Microphone, Speaker, and Joystick
• Processor To Be Evaluated: STR91xF
• Interface Type: RS-232, Ethernet, USB
• Silicon Manufacturer: ST Micro
• Core Architecture: ARM
• Core Sub-architecture: ARM9
• Silicon Core Number: STR9
• Silicon Family Name: STR91x
• Kit Contents: Board
• For Use With/related Products: STR91xF
• For Use With: 497-8268 - BOARD EVAL FOR EVAL-STR910
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-5067

UM0174
2.12
Development and debugging tool support
The STR910-EVAL evaluation board supports connection to both In-Circuit Emulators (ICE)
via a 20-pin standard JTAG interface and Trace tools via a 38-pin Embedded Trace
Macrocell (ETM) interface.
To enable the ETM trace feature, some alternate circuit functions have to be disconnected
by setting the jumpers listed in
and USB external 48MHz clock use STR91xF I/O pins that are required for the ETM trace
connection on CN7. These features will be restricted when ETM trace is used. The
evaluation board can not be connected to a motor control drive board on connector CN1.
To ensure the integrity of high-speed signals on the ETM trace connections, each ETM
signal should have a single point-to-point connection from STR91xF microcontroller to the
38-pin ETM connector. Stub tracks ("dead-end" extensions to the signal track) should be
eliminated. If you encounter problems when using ETM connector, you can remove the
resistors indicated in
connection.
Table 9.
6
10
24
26
28
30
32
34
36
38
Pin on CN7
ETM trace configuration
TRACECLK
EXTTRIG
TRACEPKT[3]
TRACEPKT[2]
TRACEPKT[1]
TRACEPKT[0]
TRACESYNC
PIPESTAT[2]
PIPESTAT[1]
PIPESTAT[0]
Description
Table 9
to avoid stub and improve signal quality on the ETM
Disconnect motor power drive board
connected to CN1
Keep JP16 set as shown below:
JP22 is not fitted (UART1 RI signal is
disabled)
JP18 is not fitted (UART1 DCD signal is
disabled)
JP19 is not fitted (UART1 DSR signal is
disabled)
JP21 is not fitted (UART1 CTS signal is
disabled)
JP17 is not fitted (external USB48MHz clock
P27 source is disable)
No
JP8 is not fitted (Motor control Encoder A pin
on CN1 connector is disabled)
No
Table
9. Motor control, UART1 full modem control support
To disable alternate function
1
2
Hardware layout and configuration
Remove R34
No change
Remove R35
Remove R36
Remove R37
Remove R38
Remove R39
Remove R40
Remove R41
Remove R42
To avoid stub
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