Clash.Intel.ClockGen

PLL and other clock-related components for Intel (Altera) FPGAs

Documentation

altpll

Arguments

:: (KnownDomain domIn, KnownDomain domOut)

=> SSymbol name

Name of the component instance.

Instantiate as follows:

SSymbol @"altPLL50"

-> Clock domIn

Free running clock (i.e. a clock pin connected to a crystal)

-> Reset domIn

Reset for the PLL

-> (Clock domOut, Signal domOut Bool)

(Stable PLL clock, PLL lock)

A clock source that corresponds to the Intel/Quartus "ALTPLL" component (Arria GX, Arria II, Stratix IV, Stratix III, Stratix II, Stratix, Cyclone 10 LP, Cyclone IV, Cyclone III, Cyclone II, Cyclone) with settings to provide a stable Clock from a single free-running input

Only works when configured with:

• 1 reference clock
• 1 output clock
• a reset port
• a locked port

You must use type applications to specify the output clock domain, e.g.:

-- outputs a clock running at 100 MHz
altpll @"50MHzDom" "100MHzDom" (SSymbol @"altpll50to100") clk50 rst

alteraPll

Arguments

:: (Clocks t, KnownDomain domIn, ClocksCxt t)

=> SSymbol name

Name of the component instance.

Instantiate as follows:

SSymbol @"alteraPLL50"

-> Clock domIn

Free running clock (i.e. a clock pin connected to a crystal)

-> Reset domIn

Reset for the PLL

-> t

A clock source that corresponds to the Intel/Quartus "Altera PLL" component (Arria V, Stratix V, Cyclone V) with settings to provide a stable Clock from a single free-running input

Only works when configured with:

• 1 reference clock
• 1-16 output clocks
• a reset input port
• a locked output port

The number of output clocks depend this function's inferred result type. An instance with a single and double output clock can be instantiated using:

(outClk, pllLocked) = alteraPll clk rst

and

(outClk1, outClk2, pllLocked) = alteraPll clk rst

respectively.