32
|
GND
|
grounding
|
|
|
|
31
|
5V
|
5V power interface, connected to VBUS of USB
|
|
|
|
30
|
BOOT
|
GPIO09, input
|
BOOTMODE
|
VDD3P3_CPU
|
UP/DOWN
|
29
|
IO08
|
GPIO08, input, output, high impedance
|
|
VDD3P3_CPU
|
UP/DOWN
|
28
|
IO04
|
GPIO04, input, output, high impedance
|
I2C_SDA/ADC_4
|
VDD3P3_RTC
|
UP/DOWN
|
27
|
IO05
|
GPIO05, input, output, high impedance
|
I2C_SCL/ADC_5
|
VDD3P3_RTC
|
UP/DOWN
|
26
|
3.3V
|
Chip power supply, 3.3V
|
|
|
|
25
|
GND
|
grounding
|
|
|
|
twenty four
|
PB_11
|
GPIO11, input, output, high impedance
|
VDD_SPI
|
VDD3P3_CPU
|
UP/DOWN
|
twenty three
|
IO07
|
GPIO07, input, output, high impedance
|
SPI2_CS
|
VDD3P3_CPU
|
UP/DOWN
|
twenty two
|
IO06
|
GPIO06, input, output, high impedance
|
|
VDD3P3_CPU
|
UP/DOWN
|
twenty one
|
IO10
|
GPIO10, input, output, high impedance
|
SPI2_MISO
|
VDD3P3_CPU
|
UP/DOWN
|
20
|
IO03
|
GPIO03, input, output, high impedance
|
SPI2_MOSI/ADC_3
|
VDD3P3_RTC
|
UP/DOWN
|
19
|
IO02
|
GPIO02, input, output, high impedance
|
SPI2_CK/ADC_2
|
VDD3P3_CPU
|
UP/DOWN
|
18
|
3.3V
|
Chip power supply, 3.3V
|
|
|
|
17
|
GND
|
grounding
|
|
|
|
16
|
5V
|
5V power interface, connected to VBUS of USB
|
|
|
|
15
|
PWB
|
Chip 3.3V power supply control, high level is effective, can be suspended when not in use
|
|
|
|
14
|
GND
|
grounding
|
|
|
|
13
|
3.3V
|
Chip power supply, 3.3V
|
|
|
|
12
|
RESET
|
chip reset
|
|
VDD3P3_RTC
|
|
11
|
NC
|
|
|
|
|
10
|
IO13
|
GPIO13, input, output, high impedance
|
|
VDD3P3_CPU
|
UP/DOWN
|
09
|
U0_RX
|
GPIO20, input, output, high impedance
|
UART0_RX
|
VDD3P3_CPU
|
UP/DOWN
|
08
|
U0_TX
|
GPIO21, input, output, high impedance
|
UART0_TX
|
VDD3P3_CPU
|
UP/DOWN
|
07
|
GND
|
grounding
|
|
|
|
06
|
IO19
|
GPIO19, input, output, high impedance
|
USB_D+
|
VDD3P3_CPU
|
UP/DOWN
|
05
|
IO18
|
GPIO18, input, output, high impedance
|
USB_D-
|
VDD3P3_CPU
|
UP/DOWN
|
04
|
IO12
|
GPIO12, input, output, high impedance
|
SPIHD
|
VDD3P3_CPU
|
UP/DOWN
|
03
|
IO01
|
GPIO1, input, output, high impedance
|
UART1_RX/ADC_1
|
VDD3P3_CPU
|
UP/DOWN
|
02
|
IO00
|
GPIO0, input, output, high impedance
|
UART1_TX/ADC_0
|
VDD3P3_CPU
|
UP/DOWN
|
01
|
GND
|
grounding
|
|
|
|