GPIO 使用

GPIO 定义

Function5	Function4	Function3	Function2	Function1	Pin#	Pin#	Function1	Function2	Function3	Function4	Function5
				+3.3V	1	40	+5.0V
PWM6 A	I2C0 SDA	UART0 TX	SPI1 RX	GPIO28	2	39	+5.0V
PWM6 B	I2C0 SCL	UART0 RX	SPI1 CSn	GPIO29	3	38	GND
PWM2 A	I2C0 SDA	UART1 TX	SPI0 RX	GPIO04	4	37	GPIO20	SPI0 RX	UART1 TX	I2C0 SDA	PWM2 A
				GND	5	36	GPIO21	SPI0 CSn	UART1 RX	I2C0 SCL	PWM2 B
PWM2 B	I2C0 SCL	UART1 RX	SPI0 Csn	GPIO05	6	35	GPIO23	SPI0 TX
PWM3 A	I2C1 SDA	UART1 CTS	SPI0 SCK	GPIO06	7	34	GND
PWM1 B	I2C1 SCL	UART0 RTS	SPI0 TX	GPIO03	8	33	GPIO22	SPI0 SCK	UART1 CTS	I2C1 SDA	PWM3 A
				+3.3V	9	32	GPIO27	SPI1 TX	UART1 RTS	I2C1 SCL	PWM5 B
PWM5 B	I2C1 SCL	UART1 RTS	SPI1 TX	GPIO11	10	31	GND
PWM4 A	I2C0 SDA	UART1 TX	SPI1 RX	GPIO08	11	30	GPIO24	SPI1 RX	UART1 TX	I2C0 SDA	PWM4 A
PWM5 A	I2C1 SDA	UART1 CTS	SPI1 SCK	GPIO10	12	29	GPIO09	SPI1 CSn	UART1 RX	I2C0 SCL	PWM4 B
				GND	13	28	GPIO18	SPI0 SCK	UART0 CTS	I2C1 SDA	PWM1 A
PWM0 A	I2C0 SDA	UART0 TX	SPI0 RX	GPIO16	14	27	GPIO17	SPI0 CSn	UART0 RX	I2C0 SCL	PWM0 B
PWM3 B	I2C1 SCL	UART1 RTS	SPI0 TX	GPIO07	15	26	GND
PWM6 A	I2C0 SDA	UART0 TX	SPI1 RX	GPIO12	16	25	GPIO19	SPI0 TX	UART0 RTS	I2C1 SCL	PWM1 B
PWM6 B	I2C0 SCL	UART0 RX	SPI1 CSn	GPIO13	17	24	GND
PWM7 B	I2C1 SCL	UART0 RTS	SPI1 TX	GPIO15	18	23	GPIO26	SPI1 SCK	UART1 CTS	I2C1 SDA	PWM5 A
PWM7 A	I2C1 SDA	UART0 CTS	SPI1 SCK	GPIO14	19	22	GPIO02	SPI0 SCK	UART0 CTS	I2C1 SDA	PWM1 A
				GND	20	21	GPIO25	SPI1 CSn	UART1 RX	I2C0 SCL	PWM4 B