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--- en:c1_enhancement_gpio40 [2014/12/31 18:34]
tobetter
+++ en:c1_enhancement_gpio40 [2016/03/29 10:18]
odroid
@@ Line 1: / Line 1: @@
+====== Enhancement of 40pin GPIO ======
+The **ODROID-C2/C1+/C1** provides 40Pin GPIOs.
+**Easy to use GPIOs** \\
+First, you refer to below link. \\
+You check Export number that you want to use GPIO. \\
+[[en:c2_hardware&#expansion_connectors | Pin description]]
+** You need to enter into super-user mode first to run below commands !! **
+<code> sudo su </code>
+Create a GPIO file access.\\
+You can access GPIOs using sysfs interface. This example uses pin number 18 which is connected to the GPIO233(GPIOX.BIT5).
+  echo 233 > /sys/class/gpio/export
+Configure the pin direction for input
+  echo in > /sys/class/gpio/gpio233/direction
+Configure the pin direction for output
+  echo out > /sys/class/gpio/gpio233/direction
+Read a value (if gpio direction is input)
+  cat /sys/class/gpio/gpio233/value
+Write a value (if gpio direction is output)
+  echo 1 > /sys/class/gpio/gpio233/value : gpio high
+  echo 0 > /sys/class/gpio/gpio233/value : gpio low
+===== I2C =====
+[[en:c1_hardware_i2c|I2C]]
+===== PWM =====
+[[en:c1_hardware_pwm|PWM]]
+===== UART =====
+[[en:c1_hardware_uart|UART]]
+===== 1-Wire =====
+[[en:c1_hardware_1w|1-Wire]]
+===== ADC =====
+[[en:c1_hardware_adc|ADC]]