xPC Target™

fc422mexcalcbits - Calculate parameter values for Fastcom 422/2-PCI board

Syntax

MATLAB^® command line

[a b ] = fc422mexcalcbits(frequency)
[a b df] = fc422mexcalcbits(frequency)

Arguments

[a b] = 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 clock. The desired baud rate (frequency) must range 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, indicates the actual baud rate that is created by the generated parameters a b. The clock circuit has limited resolution and is unable to perfectly match an arbitrary frequency. The desired baud rate (frequency) must range between 30e3 and 1.5e6, which is a hardware limitation of the clock circuit.

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