JHCTech SIGM-2650, Руководство пользователя

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User’s Manual
64
Parameter:port fill in subcard GPIO number, 1 or 2
Level 8 bit of aByte, each bit controls a GPIO pin output value,
Bit=1, means output high level
Bit =0, means output low level
Note: The output value is valid only whenthe pin is in output mode.
4*creation date
：
5*========================================================================*/
/*==========================================================================
1* intSecond_gpio_input(int port);
2 * function description
：
read the motherboard GPIO input level
3 * parameter description
：
Return value
：
return a byte (8 bit), eachbit of 8 bit corresponding to the level state of a GPIO pin
parameter
：
port fill in subcard GPIO number, 1 or 2
Note:Thereadvalue is valid only when the pin is ininput 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.
Level Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
GPIO pin PIN8 PIN7 PIN6 PIN5 PIN4 PIN3 PIN2 PIN1
Return value Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
GPIO pin PIN8 PIN7 PIN6 PIN5 PIN4 PIN3 PIN2 PIN1