JHCTech KMDA-3820 User Manual page 85

/*==========================================================================
* void MB_gpio_output(WORD port,BYTE value);
1
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,
Bit =1, means output high level
Bit =0, means output low level
Value
GPIO pin
Note:
4 * creation date：
5*========================================================================*/
/*
===========================================================================
1 * void MB_gpio_init();
2 * function description: initialization function of the motherboard gpio, This function must be called
once before using it
3 * parameter description：
4 * creation date：
5*======================================================================*/
/*==========================================================================
1 * void watchdog_set(int time);
2 * function description：Watchdog function
3 * parameter description：time is to Set the dog feeding time，Value between 0 and 255
Bit7 Bit6 Bit5
PIN8 PIN7 PIN6
Setting 0 means to turn off the watchdog
Bit4 Bit3 Bit2
PIN5 PIN4 PIN3
77
User's Manual
Bit1 Bit0
PIN2 PIN1