IDE CF Speed in Winuae

ScottC2010 · 30 April 2021, 17:39

I use my CF card in Winuae to test things like videos (AVI4HV) and also do a lot of the setup.
I noticed when I checked the hard disk speed in SysInfo there is quite a difference - On my real A500+ the transfer rate is about 645K/Sec but it is over 3MB a sec when running it in Winuae - is there an option to set the transfer rate to about the same in my real amiga so i can do more accurate tests (Particularly Video)?

mark_k · 30 April 2021, 17:47

How is the emulated CF card connected? If you emulate an A600 and connect it to the IDE controller you might see realistic transfer speeds.

ScottC2010 · 30 April 2021, 17:48

Just via a usb adapter (It's the actual CF from out of my amiga 500+) - i'll try the A600 Controller route now

ScottC2010 · 30 April 2021, 17:51

Quote:

Originally Posted by mark_k

How is the emulated CF card connected? If you emulate an A600 and connect it to the IDE controller you might see realistic transfer speeds.

Thets more like it - i get about 700?K/Sec with the A600 IDE in Winuae

ScottC2010 · 30 April 2021, 17:59

I wonder if i could get my A500+ to Autoboot if I flashed a 2.05 ROM instead of the 2.04?

thomas · 30 April 2021, 18:56

Quote:

Originally Posted by ScottC2010

I wonder if i could get my A500+ to Autoboot if I flashed a 2.05 ROM instead of the 2.04?

It depends on the IDE interface. An A500 normally does not have an IDE interface, so you must have some kind of expansion. Kick 2.05 contains drivers for the A600 IDE interface. If your expansion is compatible to the A600 IDE interface, then it might autoboot, yes.

mark_k · 30 April 2021, 19:02

Quote:

Originally Posted by mark_k

How is the emulated CF card connected? If you emulate an A600 and connect it to the IDE controller you might see realistic transfer speeds.

I meant which emulated Amiga HD controller is the CF connected to. The default is probably WinUAE's (Windows-)native uaehf.device, which would be like connecting a super-fast SSD to a real Amiga.

ScottC2010 · 30 April 2021, 20:16

Quote:

Originally Posted by mark_k

I meant which emulated Amiga HD controller is the CF connected to. The default is probably WinUAE's (Windows-)native uaehf.device, which would be like connecting a super-fast SSD to a real Amiga.

uaehf.device

ScottC2010 · 30 April 2021, 20:17

Quote:

Originally Posted by thomas

It depends on the IDE interface. An A500 normally does not have an IDE interface, so you must have some kind of expansion. Kick 2.05 contains drivers for the A600 IDE interface. If your expansion is compatible to the A600 IDE interface, then it might autoboot, yes.

Thanks!

Toni Wilen · 30 April 2021, 20:38

If DMA controller: HD speed is not limited, it is as always "too" fast.

PIO controllers are "automatically" limited by emulated CPU speed but if real controller has even slower access speed, it isn't emulated.

ScottC2010 · 01 May 2021, 22:22

Quote:

Originally Posted by Toni Wilen

If DMA controller: HD speed is not limited, it is as always "too" fast.

PIO controllers are "automatically" limited by emulated CPU speed but if real controller has even slower access speed, it isn't emulated.

Thank you

, maybe an option to limit speed in a future WinUAE?

30 April 2021, 17:39	#1
ScottC2010 Registered User Join Date: Apr 2017 Location: Leamington Spa / Warwickshire Posts: 532	IDE CF Speed in Winuae I use my CF card in Winuae to test things like videos (AVI4HV) and also do a lot of the setup. I noticed when I checked the hard disk speed in SysInfo there is quite a difference - On my real A500+ the transfer rate is about 645K/Sec but it is over 3MB a sec when running it in Winuae - is there an option to set the transfer rate to about the same in my real amiga so i can do more accurate tests (Particularly Video)?

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30 April 2021, 17:47	#2
mark_k Registered User Join Date: Aug 2004 Location: Posts: 3,333	How is the emulated CF card connected? If you emulate an A600 and connect it to the IDE controller you might see realistic transfer speeds.

30 April 2021, 17:48	#3
ScottC2010 Registered User Join Date: Apr 2017 Location: Leamington Spa / Warwickshire Posts: 532	Just via a usb adapter (It's the actual CF from out of my amiga 500+) - i'll try the A600 Controller route now

30 April 2021, 17:59	#5
ScottC2010 Registered User Join Date: Apr 2017 Location: Leamington Spa / Warwickshire Posts: 532	I wonder if i could get my A500+ to Autoboot if I flashed a 2.05 ROM instead of the 2.04?

30 April 2021, 20:38	#10
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,502	If DMA controller: HD speed is not limited, it is as always "too" fast. PIO controllers are "automatically" limited by emulated CPU speed but if real controller has even slower access speed, it isn't emulated.

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