Display And Input Devices; Table 14. Lcd Modules - ST STM3210C-EVAL User Manual

UM0600
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Display and input devices

The 3.2" TFT color LCD connected to SPI3 and 4 general purpose color LED's (LD 1,2,3,4)
are available as display devices.
A touch screen connected to an I/O expander (U7), 4-direction joystick with selection key,
general purpose button (B3), wakeup button (B2) and tamper detection button (B4) are
available as input devices.
JP14 should be re-configured to enable wakeup button B2 which shares the same I/O as
MII_CRS of the ethernet. You may refer to
The STM3210C-EVAL board also supports a second optional 2.4" TFT LCD without touch
screen that can be mounted on CN15 connector. The 2.4" TFT LCD is not populated by
default.
Table 14 shows both the LCD modules pin connections.
3.2" TFT LCD with touch screen
CN14 (default)
Pin on CN14 Description
1 CS
2 RS
3 WR/SCL
4 RD
5 RESET
22 BL_GND
23 BL_control
24 VDD
25 VCI
26 GND
27 GND
28 BL_VDD
29 SDO
30 SDI
31 XL
32 XR
33 YD
34 YU
Hardware layout and configuration
Table 2 for details.

Table 14. LCD modules

Pin connection Pin on CN15
PB2 1
- 2
PC10 3
- 4
RESET# 5
GND 6
+5V 7
3.3V 8
3.3V 9
GND 10
GND 11
+5V 12
PC11 13
PC12 14
IO Expander 15
IO Expander 16
IO Expander
IO Expander
DocID15082 Rev 5
2.4" TFT LCD CN15
(optional)
Description Pin connection
CS PB2
SCL PC10
SDI PC12
RS -
WR -
RD -
SDO PC11
RESET RESET#
VDD 3.3V
VCI 3.3V
GND GND
GND GND
BL_VDD 3.3V
BL_Control 3.3V
BL_GND GND
BL_GND GND
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