34
3.3.4.
GPIO
GPIO Information
8 GPIO ports for user interface controls. GPIO signals have paths like
/sys/class/gpio/gpioN/ and have the following read/write attributes:
"
direction
" ... reads as either "in" or "out". This value may normally be written. Writing as
"out" defaults to initializing the value as low.
"
value
" ... reads as either 0 (low) or 1 (high). If the GPIO is configured as an output, this
value may be written; any nonzero value is treated as high, otherwise as low.
GPIO Specification
Name
Value
Voltage Level
0 ~ 3.3v
GPIO Device Node
Connector
Device node
Pinout Define Section
GPIO_00 (JGPIO)
/sys/class/gpio/gpio0
GPIO_01 (JGPIO)
/sys/class/gpio/gpio1
GPIO_02 (JGPIO)
/sys/class/gpio/gpio2
GPIO_03 (JGPIO)
/sys/class/gpio/gpio3
GPIO_04 (JGPIO)
/sys/class/gpio/gpio4
GPIO_05 (JGPIO)
/sys/class/gpio/gpio5
GPIO_06 (JGPIO)
/sys/class/gpio/gpio6
GPIO_07 (JGPIO)
/sys/class/gpio/gpio7
Содержание EBC-3A1 Series
Страница 1: ...1 EBC 3A1 Series 3 5 SBC with NXP i MX6 Processor ARM Cortex A9 Architecture User Manual Ver 5st ...
Страница 9: ...9 ...
Страница 10: ...10 Chapter 1 Product Overview This chapter provides background information of EBC 3A1 ...
Страница 13: ...13 1 3 Block Diagram ...
Страница 24: ...24 2 4 Mechanical Drawing ...
Страница 25: ...25 Chapter 3 Software User Guide This chapter details the Linux operation on EBC 3A1 ...
Страница 65: ...65 Chapter 5 BSP This chapter introduces how to get board BSP board support package ...