STMicroelectronics ST7MDTULS-EVAL User manual

STMicroelectronics
ST7MDTULS-EVAL
ST7 USB low-speed
evaluation board
UM0068
User manual
Rev 2
October 2007

BLANK

October 2007 Rev 2 1/15
UM0068
User manual
ST7MDTULS-EVAL
ST7 USB low-speed evaluation board
Introduction
The objective of the ST7MDTULS-EVAL evaluation board is to provide a complete USB
application package using a Windows-based host software application and one of ST’s
range of USB low-speed microcontrollers acting as a peripheral device. The host software
and the ST7 source code provide an easily-understood example of how to exchange data
using the HID (human interface devices) class protocols. The firmware supplied on the ST7
devices is based on a USB core library that makes the control of all the USB interface
hardware transparent to the application developer. This USB library, developed by
STMicroelectronics and plug-tested by the USB IF (implementers forum), is intended for you
to use as a toolbox. All the documentation you need to do this is supplied with the package.
The ST7MDTULS-EVAL evaluation board incorporates basic input sources such as push-
buttons, an analog trimmer and output sources (LEDs). It also has a wire-wrap area so that
you can easily develop your own application. An external 12 V charge pump is also
provided, to allow you to program the ST7 embedded Flash program memory using in-
application programming (IAP). The following development tools can be ordered separately:
assembler, linker, C compiler, source level debugger, hardware emulator, programming
boards and gang programmer. For ordering information, see our website at www.st.com or
contact your local sales office.
www.st.com

Contents UM0068
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Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Software installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Hardware installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4.3 Device selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Running the USB low speed evaluation board . . . . . . . . . . . . . . . . . . . . 8
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 HID demonstrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2.1 USB enumeration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2.2 Communication with the evaluation board . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Remote wake-up function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.4 Adding circuitry on the wire-wrap area . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Enabling board for ICC communication . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

UM0068 List of tables
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List of tables
Table 1. Description of evaluation board probing points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 2. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

List of figures UM0068
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List of figures
Figure 1. Evaluation board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2. Device selection for analog-to-digital conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3. Enumeration result . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 4. HID demonstrator window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5. HID demonstrator window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 6. Board schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 7. Recommended board modifications for ICC communication . . . . . . . . . . . . . . . . . . . . . . . 13

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1 Getting started
1.1 System requirements
In order to use the ST7MDTULS-EVAL with the Windows operating system, a recent version
of Windows, such as Windows 98, Windows Millennium, Windows 2000, or Windows XP
must be installed on the PC.
The version of the Windows OS installed on your PC may be determined by clicking on the
“System” icon in the Control Panel.
Caution: When running the HID evaluation board applet provided in the package, verify that the
correct version of the HID.dll file is installed:
●Windows 98: HID.dll - Version 4.10.1998
●Windows 98 SE: HID.dll - Version 4.10.2222
●Windows Millennium: HID.dll - Version 4.90.300.1
●Windows 2000: HID.dll - Version 5.00.2134.1
●Windows XP: HID.dll - Version 5.1.2600.0
1.2 Package contents
The USB evaluation low-speed board package includes the following items:
●Hardware content
– Two ST72 Low-speed USB microcontroller devices:
ST7262xxx devices in SDIP42 package
ST7263Bxx devices in SDIP32 package
Both devices are FLASH devices allowing up to 100 reprogramming cycles. They
are delivered already programmed with the demonstration firmware.
– One evaluation board
●Software content
– PC executable software for demonstrating HID transfers.
– ST7 firmware (C source code) for the ST7262xxx devices
– ST7 firmware (C source code) for the ST7263Bxx devices
●Documentation
– USB library 4 x Interface documentation.
– ST7262 and ST7263Bxx datasheets
– Application note AN1325
1.3 Software installation
Run USBDemonstrator.exe to install the PC HID demonstrator, and follow the on-screen
prompts to complete the installation.

Getting started UM0068
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1.4 Hardware installation
Figure 1 shows the location of the main components of the evaluation board. The schematic
drawing is given in Figure 6.
Figure 1. Evaluation board layout
1.4.1 Power supply
The evaluation board is directly supplied by the USB Connector (bus powered) and
therefore does not require any external supply. In case the components added on the wire-
wrap area sink more than 500mA, an external power supply must be used.
1.4.2 Jumper settings
The W1 jumper selects the analog trimmer. When the jumper is removed, the analog
trimmer is disconnected from Ground in order to stop power consumption and to meet the
power specifications of USB suspend state. If analog-to-digital conversion is needed for
application development, you can replace this jumper by a switch transistor controlled by an
I/O pin.
SW4=Reset
USB connector
Trimmer
SDIP32 socket
SDIP42 socket
& supply
Jumper W1 Jumper W6 Jumper W7

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Figure 2. Device selection for analog-to-digital conversion
If you are using the analog trimmer, select the installed ST7 device using jumper W6 as
shown in Figure 2. This ties the analog trimmer to the PA0 I/O port of the ST7262xxx
devices and to the PB0 port of the ST7263Bxx devices. Any other analog input pin on the
microcontroller can be used by removing the W6 jumper and wiring the center pin of W6 to
the analog input.
The W7 jumper can be used to connect or disconnect an external 12V charge pump in case
you want to program the Flash.
1.4.3 Device selection
Three devices can be used with this board:
●ST7263Bxx devices in SDIP32 package on the internal socket
●ST7262xxx devices in SDIP42 package on the external socket
ST7262xxx ST7263Bxx
W6 jumper

Running the USB low speed evaluation board UM0068
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2 Running the USB low speed evaluation board
2.1 Introduction
The USB low-speed evaluation board application consists of two main parts: a HID
demonstrator running on a PC and the evaluation board itself.
Communications between the PC and the ST7 board are done through different USB pipes:
●Control IN and OUT during enumeration with the bi-directional Endpoint 0.
●Interrupt IN from endpoint 1 for data transferred from the ST7 to the PC.
●Interrupt OUT to endpoint 2 for the data transferred from the PC to the ST7. Note that
the Windows98 HID driver does not support interrupt OUT transfers, and automatically
uses the control OUT pipe to endpoint 0 instead (Set-Output function).
First connect the evaluation board to the PC with the USB cable. As a result, the evaluation
board is enumerated as an HID device as shown in Figure 3, and is ready to use.
Figure 3. Enumeration result
When you start the HID demonstrator on the PC, a graphical interface is displayed (see
Figure 3) for controlling the evaluation board. This PC software is used to demonstrate the
enumeration process and data transfer between the PC and the ST7 peripheral according to
the USB HID class specifications.

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2.2 HID demonstrator
2.2.1 USB enumeration
The device selection tabsheet, shown in Figure 4, displays the following information:
●Available USB HID devices: All the HID devices connected to the PC are displayed in
this window.
●Device information
This information, obtained during the enumeration phase, refers to the highlighted
device in the “Available USB HID device” window: vendor ID, product ID and version
numbers (refer to the USB Specification version 1.1 or higher). In addition, as string
information is supported, the manufacturer name, product and serial number are
displayed.
Figure 4. HID demonstrator window
2.2.2 Communication with the evaluation board
Controlling the evaluation board from a host PC
The HID demonstration tabsheet, shown in Figure 5, displays the following information:
●Click on the ON/OFF button in the application dialog box to switch on the LED LD2 on
the board.
●Click again to switch it OFF.
●The slider bar controls the brightness of a LED LD3 (ST7262xxx) or LD1 (ST7263Bxx).
Each slider bar value will be converted to a pulse width modulation (PWM) signal by the
microcontroller.
Displaying the evaluation board state
●Button state: this red LED changes its state when you press the SW1 push button on
the evaluation board.
●Trimmer value: this value is the result of the analog-to-digital conversion of the RV1
trimmer output. When you turn the trimmer on the evaluation board to a different
position, the new ADC value is transmitted via the USB bus and displayed on the
progress bar of the HID demonstrator.
HID attached Device
informationdevice

Running the USB low speed evaluation board UM0068
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Figure 5. HID demonstrator window
2.3 Remote wake-up function
The remote wake-up function is also supported by the evaluation board. By pressing SW3
(ST7262xxx) or SW2 (ST7263Bxx) you can wake up the PC from standby mode.
Under Windows XP, the remote wake-up capability should be enabled. For that you should
go to the “Device Manager” then “Human Interface Device” and “HID-compliant device”. On
the tabsheet “Power Management”, select “Allow this device to bring the computer out of
standby”.
2.4 Adding circuitry on the wire-wrap area
The evaluation board features a 43-hole row with all the microcontroller pins plus one side of
the analog trimmer. These connection points can be used for signal probing or rewiring to
the wire-wrap area. Table 1 gives the definition of these points for each MCU used.
“LED Control”
Red LED
Slider Bar
Progress Bar
(LED brightness)
Button
Table 1. Description of evaluation board probing points
Probing point ST7262xxx ST7263Bxx
1PD6
2PD5
3PD4
4PD3
5PD2
6V
PP VPP
7PD1
8PD0
9PC7
10 PC6
11 PC5

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12 PC4
13 PC3
14 PC2 PC2
15 OSCIN OSCIN
16 OSCOUT OSCOUT
17 VSS VSS
18 VDD VDD
19 PC1 PC1
20 PC0 PC0
21 PB7 PB7
22 PB6 PB6
23 PB5 PB5
24 PB4 PB4
25 PB3 PB3
26 PB2 PB2
27 PB1 PB1
28 PB0 PB0
29 PA7 PA7
30 PA6 PA6
31 PA5 PA5
32 PA4 PA4
33 PA3 PA3
34 PA2 PA2
35 PA1 PA1
36 PA0 PA0
37 RESET RESET
38 VSSA
39 USBDM USBDM
40 USBDP USBDP
41 USBVCC USBVCC
42 VDDA VDDA
43 An.Trim. An.Trim.
Table 1. Description of evaluation board probing points (continued)
Probing point ST7262xxx ST7263Bxx

Running the USB low speed evaluation board UM0068
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Figure 6. Board schematics
PA5 PB7 PB6 PA7 PC0 PB1 USBV
C
C
U
SB
DM
VSS
A
V
PP
P
C
2
PB5 PB4 PB3 PB2
PA2 PA1
VD
DA
USB
VCC
USBDP
USBDM
VSSA
R
E
S
ET
PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA
7
PB
0
PB1 PB
2
PB3 PB4
PB
5
PB
6
PB
7
PC
0
PC1
VDD
VSS
O
S
C
IN
VPP
VDD VSS PC1
PC2
O
S
C
OU
T
PB0
PA4
PA4 RESET PA0
VDDA
PA1
PA6 OSCI N PA3 OS
C
OU
T
VSSA
PB2
VSS
PD4
PD2
PC3
PC6
PC7
PD3
PC3 PC4 PC5 PC6 PC7 PD0 PD
2
PD3 PD4 P
D
5
PD6 PD1 U
SB
DP
VDDA
USBVCC
PA2
PA5
PA6
PB0
PB3
PB7
OSCOUT
PC2
PC4
PD0
PD6
USBDP
USBDM
RESET
PA0
PA3
PA7
PB1
PB4
PB5
PB6
PC0
PC1
VDD
OSCIN
PC5
PD1
VPP
PD5
VCC_ARROW
R4
1
K5
R6
2K2
C
3
33P
F
1
2
3
4
5
6
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
PD6
PD5
PD4
PD3
PD2
VPP
PD1
PD0
PC7
PC6
PC5
PC4
PC3
PC2
OSCIN
OSCOUT
VSS
VDD
PC1
PC0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
RESET
VSSA
USBDM
USBDP
USBVCC
VDDA
W1B1
C4
33PF
C5
22
0NF
LD4
L
ED
red
LD3
LE
D
red
LD2
LE
D
red
W1
1 2
LD1
LE
D
red
R8
470
R7
47
0
R6
470
S
T
7
2
6
3
U2
11
5 3 2 4 1 6 7 9
10
12 13 14 15 16 17 18 19 20 21 22 23 26 27
8
28
30 29 31 32
V
PP
PC2
O
SCI N
O
SCOU
T
VSS VDD P
C1
P
C0
PB7 PB6
P
B5
PB4
P
B3
P
B
2
PB1 PB0 PA7 PA6 P
A5
PA4
P
A
3
PA2 PA
1
P
A0
R
ESE
T
V
SSA
U
SBDM
U
SBDP
U
SBVCC
V
DDA
R5
47
0
C
2
10NF
4
7K
S
T
7262
ST726
2
U
1
1 2 3 4 5 6 0
7
0
8
09
1
0
1
1
12 13 1
4
1
5
1
6
1
7
18
19 2
0
21
2
2
2
3
24
2
5
26 27 2
8
2
9
3
0
3
1
3
2
3
3
34 35 3
6
3
7
38
3
9
40
41
4
2
P
D6
P
D
5
P
D
4
PD3 P
D2
VP
P
P
D
1
PD
0
P
C
7
P
C6
PC5 P
C
4
P
C
3
P
C
2
O
SC
I
N
OSCOUT
VS
S
VDD
PC1 P
C
0
PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0
R
ES
ET
VSSA
USB
DM
U
SB
D
P
US
BVC
C
VDDA
X
T1
12MHz
RESET SW4
+
C
1
5
0
V
4
.7UF
1 2
+
C9
5
0
V
4
.7
U
F
1 2
+C
6
5
0
V
4
.
7
UF
1 2
SW3
SW3
SW2
SW2
CW
RV1
10K
C8
22
0NF
W6
1
2
3
SW1
SW1
47
K
2.
5
V
U3
S
T
6
6
2
A
2 3 4 1
5 6 7 8
C1+ C2- C
2
+
C1-
VC
C
VO
UT
GND
SHDN
USB
J1
1 2 3 4
C
7
10
0
NF
BC5
57
B
T
1
R1
47K
W7
1 2
W2
1 2
W3
1 2
W4
1 2
W5
1 2
VCC_ARROW
VCC_ARROW
VCC_ARROW
VCC_ARROW
VCC_ARROW
R2
R3

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2.5 Enabling board for ICC communication
To enable ICC communication on this board, the connection between the VPP pin of the
MCU and the charge pump capacitors (C6 and C7) needs to be cut to allow the
programming tool to generate pulses on the VPP line (mandatory for entry into ICC mode).
To allow switching between either ICC and IAP functionality, the use of a jumper is
recommended, soldered across the location of the cut. This allows 12 V to reach the VPP pin
in IAP mode. See the figure below for the recommended cut and jumper locations.
Figure 7. Recommended board modifications for ICC communication
Cut line here Jumper between these points

Revision history UM0068
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3 Revision history
Table 2. Document revision history
Date Revision Changes
28-Oct-2002 1.2 Initial Release
11-Oct-2007 2.0
Added evaluation board root part number (ST7MDTULS-EVAL).
Removed ST72F61 and SDIP42-DIP20 adaptor.
Changed ST72F62 and ST72F63B root part numbers into
ST7262xxx and ST7263Bxx, respectively.
Removed reference to supplied C source code for PC executable
software, Section 1.2 on page 5
Added Section 2.5: Enabling board for ICC communication.

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