clash-prelude-0.99.1: CAES Language for Synchronous Hardware - Prelude library

Copyright(C) 2017 Google Inc
LicenseBSD2 (see the file LICENSE)
MaintainerChristiaan Baaij <christiaan.baaij@gmail.com>
Safe HaskellNone
LanguageHaskell2010

Clash.Intel.ClockGen

Description

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

Synopsis

Documentation

altpll Source #

Arguments

:: SSymbol name

Name of the component, must correspond to the name entered in the QSys dialog.

For example, when you entered "altPLL50", instantiate as follows:

SSymbol @ "altPLL50"
-> Clock pllIn Source

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

-> Reset pllIn Asynchronous

Reset for the PLL

-> (Clock pllOut Source, Signal pllOut Bool)

(Stable PLL clock, PLL lock)

A clock source that corresponds to the Intel/Quartus "ALTPLL" component 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.:

type Dom100MHz = Dom "A" 10000

-- outputs a clock running at 100 MHz
altpll @Dom100MHz (SSymbol @"altpll50to100") clk50 rst

alteraPll Source #

Arguments

:: SSymbol name

Name of the component, must correspond to the name entered in the QSys dialog.

For example, when you entered "alteraPLL50", instantiate as follows:

SSymbol @ "alteraPLL50"
-> Clock pllIn Source

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

-> Reset pllIn Asynchronous

Reset for the PLL

-> (Clock pllOut Source, Signal pllOut Bool)

(Stable PLL clock, PLL lock)

A clock source that corresponds to the Intel/Quartus "Altera PLL" component 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.:

type Dom100MHz = Dom "A" 10000

-- outputs a clock running at 100 MHz
alteraPll @Dom100MHz (SSymbol @"alteraPll50to100") clk50 rst