Acrosser Technology AR-B6005, User Manual, Page: 57 / 66

result = setCanFilter(&varFilter);
if( result != 0)
printf(“Fail to set up the filter!\n”);
Return Value: If this function sets the filter successfully, it returns 0, any other returned value
stands for error.
6.5.2 GPIO and Watchdog
6.5.2.1 GPIO
1. Syntax:
i32 getChLevel(u8 *val )
Description: Get the status of GPIO input pins and output pins, and put the value at *val.
Parameters:
This function takes a pointer to an unsigned char variable as the parameter.
The bit0 ~ bit3 in the pointed variable ‘*val’ is the status of the output pins. The bit4 ~ bit7 in the
pointed variable ‘*val’ is the status of the input pins.
For example:
u8 val;
i32 result;
result = getChLevel( &val);
if(result != 0)
printf(“Fail to get GPIO status!\n”);
Return Value: If the function gets the value successfully, it returns 0, any other returned value
stands for error.
1. Syntax:
i32 setChLevel(u8 val )
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