JHCTech WPPC-H1580T, Руководство пользователя

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User’s Manual
53
/*======================================================================
1 * int I715_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
Value=0, means low level
parameter
：
port fill in subcard GPIO number, 1 or 2
descripiton
：
The read value is valid only when the pin is in input mode
4 * creation date
：
5 *
======================================================================*/
int I715_2nd_gpio_input(int port);
Return value Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
GPIO pin PIN8 PIN7 PIN6 PIN5 PIN4 PIN3 PIN2 PIN1