AT-START-F407 User Manual
2020.11.20
15
Rev 1.20
3.12 Extension connectors
3.12.1 Arduino
TM
Uno R3 extension connector
Female plug J3~J6 and male J7 support standard Arduino
TM
Uno R3 connector. Most of the
daughter boards designed around Arduino
TM
Uno R3 are suitable for AT-START-F407.
Note 1: The I/O ports of AT32F407VGT7 are 3.3 V compatible with Arduino
TM
Uno R3, but 5V incompatible.
Note 2: Set R17 OFF if it is needed to supply power through the J3 pin_8 AREF of AT-START-F407 to the
V
REF+
of AT32F407VGT7 by means of Arduino
TM
Uno R3 daughter board.
Table 4. Arduino
TM
Uno R3 extension connector pin definition
Connector
Pin
number
Arduino
pin name
AT32F407
Pin name
Functions
J4
(Power supply)
1
NC
-
-
2
IOREF
-
3.3V reference
3
RESET
NRST
External reset
4
3.3V
-
3.3V input/output
5
5V
-
5V input/output
6
GND
-
Ground
7
GND
-
Ground
8
VIN
-
7~12V input/output
J6
(Analog input)
1
A0
PA0
ADC123_IN0
2
A1
PA1
ADC123_IN1
3
A2
PA4
ADC12_IN4
4
A3
PB0
ADC12_IN8
5
A4
PC1 or PB9
(1)
ADC123_IN11 or I2C1_SDA
6
A5
PC0 or PB8
(1)
ADC123_IN10 or I2C1_SCL
J5
(Logic input/output
low byte)
1
D0
PA3
USART2_RX
2
D1
PA2
USART2_TX
3
D2
PA10
-
4
D3
PB3
TMR2_CH2
5
D4
PB5
-
6
D5
PB4
TMR3_CH1
7
D6
PB10
TMR2_CH3
8
D7
PA8
(2)
-
J3
(Logic input/output
high byte)
1
D8
PA9
-
2
D9
PC7
TMR3_CH2
3
D10
PA15 or PB6
(1)(2)
SPI1_NSS or TMR4_CH1
4
D11
PA7
TMR3_CH2 or SPI1_MOSI
5
D12
PA6
SPI1_MISO
6
D13
PA5
SPI1_SCK
7
GND
-
Ground
8
AREF
-
V
REF+
input/output
9
SDA
PB9
I2C1_SDA
10
SCL
PB8
I2C1_SCL
Summary of Contents for AT-START-F407
Page 17: ...AT START F407 User Manual 2020 11 20 17 Rev 1 20 4 Schematic Figure 4 Schematic AT Link EZ...
Page 18: ...AT START F407 User Manual 2020 11 20 18 Rev 1 20 Figure 5 Schematic microcontroller...
Page 20: ...AT START F407 User Manual 2020 11 20 20 Rev 1 20 Figure 7 Schematic extension connectors...