STEVAL-TCS003V1
24-bit port expander demonstration board with LCD,
keypad, and PWM interfaces based on the STMPE2403
Data brief
Features
■
Provides a user-friendly environment for use in:
– Standalone mode
– PC GUI mode
■
Board powered through USB Mini-B connector
■
PC GUI supports various power saving modes
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Description
The STEVAL-TCS003V1 demonstration board is
based on the STMPE2403 port expander and the
ST7263BK6 microcontroller. It includes a PC GUI
(graphical user interface). The objective of the
board is to demonstrate the features and
capabilities of the STMPE2403 port expander
chip using a Windows®-based host software
application and one of ST’s several USB lowspeed microcontrollers (the ST7263BK6 is used
in this demonstration board) acting as a control
device. In the STEVAL-TCS003V1, the
ST7263BK6 microcontroller acts as the I2C
master and controls the STMPE2403 device,
which functions as an I2C slave. The STMPE2403
is used to interface the matrix keypad, dedicated
keys, special function keys, rotator controller and
PWM controllers. These interfaces are controlled
using I2C communication between the master and
slave devices. In run mode, events such as key
press (matrix, special function or dedicated keys),
rotator controller, power mode, etc. are captured
and displayed on the LCD screen and in the scan
window of the PC GUI. The capability of the
rotator controller is demonstrated using a 3-pin
jumper connector. For interfacing with the PC
GUI, the application layer is built above the USB
core library, making the USB interface hardware
control transparent for developers.
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STEVAL-TCS003V1
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October 2009
Doc ID 16367 Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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Circuit schematics
1
STEVAL-TCS003V1
Circuit schematics
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Doc ID 16367 Rev 1
STEVAL-TCS003V1
Note:
Circuit schematics
1
ICC interface must be closure to the ST7 device.
2
The lenght of the track of ICCDATA and ICCCLK must be same and should be small.
3
External OSC must be placed closure to ST7 device.
4
All the 100 nF capacitor between any supply pins and GND must be placed near to the
regulator outputs.
5
C16 and C18 must be placed closure to STMPE2403 device.
6
32 kHz OSC mustr be placed closure to STMPE2403 device.
7
All the capacitor connected to device supply pins must be placed closure to the device.
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Doc ID 16367 Rev 1
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Revision history
2
STEVAL-TCS003V1
Revision history
Table 1.
Document revision history
Date
Revision
06-Oct-2009
1
Changes
Initial release.
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Doc ID 16367 Rev 1
STEVAL-TCS003V1
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