| Copyright | (C) 2017-2018 Google Inc 2019 Myrtle Software |
|---|---|
| License | BSD2 (see the file LICENSE) |
| Maintainer | Christiaan Baaij <christiaan.baaij@gmail.com> |
| Safe Haskell | None |
| Language | Haskell2010 |
Clash.Intel.ClockGen
Description
PLL and other clock-related components for Intel (Altera) FPGAs
Documentation
Arguments
| :: forall domOut domIn name. (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
See also the ALTPLL (Phase-Locked Loop) IP Core User Guide
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.
See also the Altera Phase-Locked Loop (Altera PLL) IP Core User Guide