JHCTech SIGM-3250 Series, Руководство пользователя

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User’s Manual
63
5.1 WDT and GPIO
/* ======================================================================
1 * void jhctech_init();
2 * function description: library initialization, This function must be called before calling other
functions
3 * parameter description
：
4 * creation date
：
5*======================================================================*/
/* ======================================================================
1 * void jhctech_init();
2 * function description: library release, Pair with jhctech_init, release the library's occupied resources
when not needed
3 * parameter description
：
4 * creation date
：
5* ======================================================================*/
/*==========================================================================
1 * BYTE MB_gpio_input(WORD port)
2 * function description: read the motherboard GPIO input level
3 * parameter description:
Return value
：
return a byte (8 bit), each bit of 8 bit corresponding to the level state of a GPIO pin
Parameter: port fill in motherboard GPIO number which is designed by factory
Note:
4 * creation date
：
5*========================================================================*/
/*==========================================================================
1 * void MB_gpio_output(WORD port,BYTE value);
2 * function description
：
high and low levels output of the motherboard
3 * parameter description:
Parameter: port fill in motherboard GPIO number which is designed by factory
Value 8 bit of a Byte, each bit controls a GPIO pin output value,
Return value Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
GPIO pin PIN8 PIN7 PIN6 PIN5 PIN4 PIN3 PIN2 PIN1