JHCTech PADR-M101 User Manual page 72

/*======================================================================
1 * void I910_2nd_gpio_output(int port,int level);
2 * function description：subcard output high and low level
3 *parameter descirption：
parameter：port fill in GPIO number of the subcard, 1 or 2
level
GPIO pin
description：The output value is valid only when the pin is in output mod
4 * creation date：
5
==================================================================== */
void I910_2nd_gpio_output(int port,int level);
/*======================================================================
1 * int I910_2nd_gpio_input(int port);
2 * function description：read the motherboard GPIO input level
3 * parameter description：
Return value：return a byte (8 bit), each bit of the 8 bit corresponding to the level state of a GPIO
pin
Value=1, means high level
level 8 bits of a byte, each bit controls a GPIO pin output value,
Bit =1, means output high level
Bit =0, means output low level
Bit7 Bit6 Bit5
PIN8 PIN7 PIN6 PIN5
Bit4 Bit3 Bit2
PIN4 PIN3
64
用户手册
Bit1 Bit0
PIN2 PIN1
*