8.8.3 Programming
:
DiVal =
inportb(BASE);
/* for all 6 channels */
Note:
1. The default value of BASE is
1
.
2. It is
not
recommended to change the value of BASE from 0 to another value.
3. DiVal=0x00
all 6-channel are Low
DiVal=0x01
Chennel_0 is High, the other channels are Low
DiVal=0x3F
all 6-channel are High
outportb(BASE, DoVal);
/* for all 7 channels */
Note:
1. The default value of BASE is
0
.
2. It is
not
recommended to change the value of BASE from 0 to another value.
3. DoVal=0x00
turn all 7-channel OFF
DoVal=0x01
turn chennel_0 ON, the other channels OFF
DoVal=0x7F
turn all 7-channel ON
I/O Expansion Bus for 7188X/7188E User’s Manual, Jan/2005 v1.5, 7PH-000-15---59