Motor Control; Display And Input Devices; Table 13. Lcd Modules - STMicroelectronics STM32G081B-EVAL User Manual

UM2403
no daughterboard on these connector, pin17 must be closed to pin18 on both CN4 and CN5
by jumpers. Thus I2C pull up voltage and reset pull up voltage on CN2 would be the voltage
of VDD.
6.6.6

Motor Control

The STM32G081B-EVAL Evaluation board supports both asynchronous and synchronous
three-phase brushless motor control via a 34-pins connector CN1, which provides all
required control and feedback signals to and from motor power-driving board.
Available signals on this connector includes emergency stop, motor speed, 3 phase motor
current, bus voltage, power heatsink coming from the motor driving board and 6 channels of
PWM control signal going to the motor driving circuit.
Daughterboard on CN4 and CN5 must be removed and some jumpers set for motor control
application:
•
Close JP1, JP2 and JP3.
•
Open JP4 and JP6.
•
Open pin2-3 of JP8 and JP10.
6.6.7

Display and Input devices

The 2.4" color TFT LCD connected to SPI1 port of STM32G081RBT6 and 4 general
purpose color LED's (LD 1,2,3,4) are available as display device. The 4-direction joystick
(B3) with selection key which connected to PA0 and supports wakeup feature. Tamper
button (B2) are also available as input devices.
Pin
1
2
3
4
5
6
7
8
Note: The bi-directional voltage translator is implemented on SPI MOSI signal between
STM32G081RBT6 and LCD to support 3-wires serial interface of LCD panel only supports
3-wire SPI port. The direction of this voltage translator is controlled by IO PC12 (the IO PA7
is working as MOSI when PC12 is high or as MISO when PC12 is LOW).
2.4" TFT LCD connector CN14
Description Pin connection
CS PB8
SCL PB3
SDI PA7
RS -
WR -
RD -
SDO PB4
RESET RESET#
UM2403 Rev 2
Hardware layout and configuration

Table 13. LCD modules

Pin
9
10
11
12
13
14
15
16
Description Pin connection
VDD 3.3V
VCI 3.3V
GND GND
GND GND
BL_VDD 5V
BL_Control 5V
BL_GND GND
BL_GND GND
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