User's Manual

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Pin Definition Function
1 GND Ground pin
2 jtag_clk/gpio JTAG/IO Multiplexing port
3 jtag_tdo/pwm3 JTAG/IO Multiplexing port
4 jtag_tdi/pwm1 JTAG/IO Multiplexing port
5 jtag_tms/pcm0_in JTAG/IO Multiplexing port
6 jtag_trst/pwm0 JTAG/IO Multiplexing port
8 ADC_CH2 ADC Sampling pin
9 VCC Power supply(DC_3.3V)
11 I2C1_SCL/GPIO I2C/IOMultiplexing port
12 I2C1_SDA/GPIO I2C/IOMultiplexing port
17 GND Ground pin
20 GPIOA_3 IO Port
21 GPIOB_1 Module internal debugging pin(Suspended)
22 GPIOB_0 Module internal debugging pin(Suspended)
24 GPIOB_2 IC Working mode selection(Suspended)
25 CHIP_EN IC Enable pin
27 spi0_so /pwm3 SPI/PWM Multiplexing port
28 spi0_clk/pwm1 SPI/PWM Multiplexing port
29 spi0_cs/pwm0 SPI/PWM Multiplexing port
30 spi0_si/pwm2 SPI/PWM Multiplexing port
31 VDDIO Power supply(DC_3.3V)
32 GND Ground pin
33 NFCIN_1 NFC Function pin
34 VCC Power supply(DC_3.3V)
35 NFCIP_1 NFC Function pin
39 UART_TX/GPIOA_6 UART port/IO port
40 GPIO/JTAG_TDI IO/JTAG Multiplexing port
41 UART_RX/GPIOA_7 UART port/IO port
42 GPIO/JTAG_TDO IO/JTAG Multiplexing port
43 IO/SPI_CS IO 口/SPI Multiplexing port
44 GPIOB_3 IO port
45 GPIOA_5 IO port
47 CHIP_EN IC Enable pin
48 GND Ground pin