JHCTech KMDA-3921, Руководство пользователя

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User’s Manual
62
/*==========================================================================
1 * int smbus_16pin_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
parameter
：
port fill in sub-card GPIO number, 1 or 2
Note: The read value is valid only when the pin is in input mode
4 * creation date
：
5*========================================================================*/
Note: If you want more programs of the motherboard’s watchdog and subcard’s GPIO, please call +86-
0755-86021176-(8021)/+86-0755-86021176-(8023) for more information.
Return value Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
GPIO pin PIN8 PIN7 PIN6 PIN5 PIN4 PIN3 PIN2 PIN1