RTC
®
5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
460
innovators for industry
Mode
unsigned 32-bit value.
= 0: The transmitted value will be used directly.
= 1: The transmitted value will be multiplied by P/16384 and then put out.
Ctrl
,
P
and
Mode
are only relevant for Type 3 (= laser power) of the transmitted data word;
see
Comments
• Any other previously activated McBSP transmission for online positioning and any other
previously activated Processing-on-the-fly application with encoder signals or positional
values will first be terminated.
• The command enables inputting via the McBSP interface of up to eight different types
for asynchronous transmission every 10
µ
s. Each 10
µ
s, the data is copied in accordance
with its type code to separate memory, from where it can also be queried via
.
• To avoid faulty sorting, no active McBSP transmission should be occurring when you
issue the command.
• The McBSP interface always ignores the first FrameSync signal after a
, so available data will not be transmitted (see page
• You must code the transmission’s type assignment into the data word’s least significant
three bits in accordance with McBSPValue = ( Value << 3 ) | Type. The RTC
®
5 stores
the data word in accordance with
Memory[ McBSPValue & 0x7 ] = (long) McBSPValue >> 3.
• For more on type assignments, see
• The remaining (most significant) 29 bits are available for the data word itself. There are
no further restrictions other than the type-dependent value ranges themselves. The
transmitted values won’t be checked with respect to their ranges. Clipping or data over-
flow may occur.
• The four extra parameters are not the same as the four free variables (see
, although they can be used for similar purposes. Upon
program start, they are initialized with 0 and this command doesn’t further modify
them. The transmitted values merely get copied into type-sorted memory.
Ctrl Command set_multi_mcbsp_in
