User`s guide

fc422mexcalcbits
Purpose Calculate parameter values for Fastcom 422/2-PCI board
Syntax MATLAB command line
[a b ] = fc422mexcalcbits(frequency)
[a b df] = fc422mexcalcbits(frequency)
Arguments
frequency
Desiredbaudratefortheboard
[a b] = fc422mexcalcbits(frequency) accepts a baud rate (in units
of baud/second) and converts this value into two parameters
ab.You
mustenterthesevaluesfortheparameterClock bits of the Fastcom
422/2-PCI driver clock. The desired baud rate (
frequency)mustrange
between 30e3 and 1.5e6, which is a hardware limitation of the clock
circuit.
[a b df] = fc422mexcalcbits(frequency) accepts a baud rate (in
units of baud/second) and converts this value into two parameters
a
b
. You must enter these values for the parameter Clock bits of the
Fastcom 422/2-PCI driver block. The third value,
df,indicatesthe
actual baud rate that is created by the generated paramete rs
ab.The
clock circuit has limited resolution and is unable to perfectly match an
arbitrary frequency. The desired baud rate (
frequency)mustrange
between 30e3 and 1.5e6, which is a hardware limitation of the clock
circuit.
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