AskDavis/Getting-Started-With-ACPI
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Mykola Grymalyuk
2020-04-30 09:40:37 -06:00
parent 37c3a68375
commit 46110a598e
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Universal/awac.md
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@@ -10,18 +10,17 @@
* Z370 (Gigabyte and AsRock boards with newer BIOS versions)
* Z390
* 400 series (Cometlake)
* 495 series (Icelake)
* 495 series (Icelake)
So on newer Intel 300 series motherboards, manufactures started pushing for a new type of system clock: **AWAC**( **A** **W**eird **A**ss **C**lock). One small problem, macOS doesn't know what the hell an AWAC clock is instead only familiar with the legacy **RTC**(**R**eal **T**ime **C**lock). So we need to figure out how to bring back the old clock, thats where `SSDT-AWAC` and `SSDT-RTC0` come in:
* [SSDT-AWAC](https://github.com/acidanthera/OpenCorePkg/blob/master/Docs/AcpiSamples/SSDT-AWAC.dsl)
* Disables AWAC and enables RTC
* In your DSDT, there's a variable called `STAS` used for holding either a `One` or `Zero` to determine which clock to use(`One` for RTC and `Zero` for AWAC)
* [SSDT-RTC0](https://github.com/acidanthera/OpenCorePkg/blob/master/Docs/AcpiSamples/SSDT-RTC0.dsl)
* Used for creating a fake RTC device for macOS to play with
* In very rare circumstances, some DSDTs may not have a legacy RTC to fall back on. When this happens, we'll want to create a fake device to make macOS happy
* Disables AWAC and enables RTC
* In your DSDT, there's a variable called `STAS` used for holding either a `One` or `Zero` to determine which clock to use(`One` for RTC and `Zero` for AWAC)
* [SSDT-RTC0](https://github.com/acidanthera/OpenCorePkg/blob/master/Docs/AcpiSamples/SSDT-RTC0.dsl)
* Used for creating a fake RTC device for macOS to play with
* In very rare circumstances, some DSDTs may not have a legacy RTC to fall back on. When this happens, we'll want to create a fake device to make macOS happy
Note: AWAC actually stands for ACPI Wake Alarm Counter/Clock for those curious, though I'll forever know it as A Weird Ass Clock ;p
@@ -43,5 +42,4 @@ By default the SSDT uses `LPCB`, you can check what your system uses by just sea
![](/images/Universal/awac-md/lpc.png)
## [Now you're ready to compile the SSDT!](/Manual/compile.md)