2.4.9 A/D Software Trigger Control Register
(WRITE) Base+C : A/D Software Trigger Control Register Format
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X X X X X X X X
X=don‘t care, XXXXXXXX=any 8 bits data is validate
The A/D converter can be triggered by software trigger or pacer trigger. Writing any
value to address BASE+C will generate a trigger pulse to A/D converter and initiated an A/D
conversion operation. The address BASE+5 offers a ready bit to indicate an A/D conversion
complete.
The software driver uses this control word to detect the A-812PG hardware board.
The
software initiates a software trigger and checks the ready bit
. If the ready bit cannot be
cleared to zero in a fixed time, the software driver will return an error message. If the I/O
BASE address setting error, the ready bit will not be cleared to zero. The software driver,
A-812PG_CheckAddress()
, use this method to detect the correctness of I/O BASE address
setting.
A-812PG Hardware Manual (Ver.1.2, Sep/2005, IPH-004-12) -----
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